WO2006038602A1

WO2006038602A1 - Member for rainwater containing structure and rainwater containing structure body using the same

Info

Publication number: WO2006038602A1
Application number: PCT/JP2005/018319
Authority: WO
Inventors: Hideki Miyaji; Kaoru Inoue; Katsuhiko Tanigawa; Toshiya Taniguchi; Akira Yoshida; Youetsu Kudou
Original assignee: Toyo Tire & Rubber Co., Ltd.
Priority date: 2004-10-04
Filing date: 2005-10-04
Publication date: 2006-04-13
Also published as: KR20070074551A; KR20070087159A; KR100806244B1

Abstract

A member for a rainwater containing structure, having pipe-like longitudinal members (3) with a predetermined length, lateral members (2) for forming, together with the pipe-like longitudinal members (3), a three-dimensional structure body, and connection jigs(1) for connecting the pipe-like longitudinal members (3) to the lateral members (2). When the pipe-like longitudinal members (3) and the lateral members (2) are assembled in the three-dimensional structure body through the connection jigs (1), a space can be formed inside the structure body.

Description

Specification

Rainwater storage structural member and rainwater storage structure using the same

Technical field

The present invention relates to a member for a rainwater storage structure and a rainwater storage structure using the same, and more specifically, a plurality of pipe-like longitudinal members having a predetermined length and a connection for connecting these pipe-like longitudinal members to be connectable The present invention relates to a member for a rainwater storage structure having a member and a rainwater storage structure using the same.

Background art

In recent years, in particular, in urban areas, problems such as abnormal rainfall and runoff or abnormal drying frequently occur frequently, and the heat island phenomenon is taken as the cause. In order to alleviate this phenomenon, construction of facilities that use rainwater is proposed, and development of rainwater storage structures or packing materials for rainwater storage is in progress.

[0003] As such a rainwater storage structure, for example, a pit is dug on the ground, a water blocking sheet is laid on the outer surface, and a plurality of container-like members are stacked vertically and horizontally on the upper surface thereof. An invention has been made of a structure in which the uppermost portion is covered with soil and the like to store rainwater (Patent Document 1).

Alternatively, it is a filler for rainwater storage, in which a plurality of hollow detachable supports are vertically fixed by a connecting member, and the connecting member is integrally connected by a detachable connecting bar and an edge frame. Thus, an invention has been made which can prevent the falling off of the support at the corner during transportation (Patent Document 2).

Patent Document 1: Japanese Patent Application Laid-Open No. 63-268823

Patent Document 2: Japanese Patent Application Laid-Open No. 2004-19205

Disclosure of the invention

Problem that invention tries to solve

However, the rainwater storage structure or the packing material for rainwater storage of the above embodiment uses the packing material for rainwater storage consisting of the container-like member, the detachable post and the connecting member, and it is sufficient for inspection. Maintenance inspections can not be performed practically, because the openings are not wide enough. Even if sediment has accumulated due to long-term use and can not perform its prescribed function, cleaning work is easy and no function can be restored.

[0006] In addition to the above, when the container-like member and the filling material of the above-mentioned prior art are transported, they contain a large space for storing rainwater and are bulky, so the transportation cost is high for the transport amount. There is a problem of this. Also, there is a problem that these containers and fillers are fixed in shape, so that they can not flexibly cope with the shape of the rainwater storage and permeation tank.

Therefore, in view of the problems of the above-mentioned prior art, it is an object of the present invention to secure a large opening when assembled, to facilitate maintenance and inspection, and to reduce the force from individual component members. By facilitating assembly and enabling on-site assembly, transportation costs can be reduced, and a member for a rainwater storage structure that can flexibly cope with the shape of a rainwater storage and permeation tank, and a rainwater storage using the same. It is to provide a structure.

Means to solve the problem

The above object is achieved by the invention described in the claims. That is, the characteristic configuration of the member for a structure for storing rainwater according to the present invention includes a plurality of pipe-shaped vertical members having a predetermined length, a horizontal member that assembles a three-dimensional structure together with these grooved vertical members, and the pipe-shaped vertical member And a connecting jig for connecting the horizontal members, and by forming the pipe-like vertical members and the horizontal members into a three-dimensional structure via the connecting jig, a space can be formed inside. It is to

According to this configuration, since the pipe-shaped vertical member, the horizontal member, and the connecting jig are combined, maintenance and inspection can be performed only by selecting the lengths of the veeve-shaped vertical member and the horizontal member. It is possible to easily form an opening of a predetermined size, and also to transfer the force to the construction site, without bringing the nove-shaped longitudinal member, the horizontal member and the connecting jig into an assembled state. As it is not transported as a container-like member with a lot of space like the prior art, or as a filler, it has a small bulk at the time of transportation, and an efficient transport is effective. It will be possible to greatly reduce the cost of transportation. Not only that, by changing the length, diameter, etc. of the pipe-like longitudinal member and the horizontal member, it is possible to respond flexibly to the shape of the rainwater storage and permeation tank, and the design freedom is significantly better than the prior art. Improve on Do.

[0010] As a result, when assembled, a large opening can be secured, maintenance and inspection are easy, and individual components can be assembled easily, thereby enabling on-site assembly and transportation costs. It is possible to provide a member for a rainwater storage structure that can reduce the amount of water and flexibly respond to the shape of the rainwater storage and infiltration tank.

It is preferable that the connection jig is fitted and attached to the pipe-like longitudinal member and is engaged with and connected to the cross member.

According to this configuration, since the pipe-like vertical member and the horizontal member are connected via the connection jig, the connection work is easy, as there is no need to prepare and fasten a fastener such as a bolt and a nut separately. As a result, assembly work to a three-dimensional structure on site can be performed more efficiently.

Furthermore, as a characteristic configuration of the member for a structure for storing rainwater according to the present invention, a plurality of pipe-shaped vertical members having a predetermined length and the pipe-shaped members having a predetermined length are connected to each other to be three-dimensional. A connecting member that can be assembled into a structure may be provided, and a space may be formed inside a three-dimensional structure formed of the pipe-like member and the connecting member.

According to this configuration, in order to assemble the three-dimensional structure with the pipe-like member and the connecting member, the opening having a predetermined size can be easily selected simply by selecting the lengths of the pipe-like member and the connecting member. As in the prior art, it is possible to form and to transport the pipe-like member and the connecting member separately in the state before assembly when transporting to the construction site. Since the container-like member having space and volume is not to be transported as a filler !, the transport volume can be extremely small, efficient transport can be performed, and the transportation cost can be significantly reduced. Not only that, by changing the shape of the resin pipe-like member and the connecting member such as the length and diameter, it can be flexibly adapted according to the shape of the rainwater storage and permeation tank, and the design freedom is improved compared to the prior art. It will improve dramatically.

[0015] As a result, when assembled, a large opening can be secured, maintenance and inspection are easy, and individual components can be assembled easily, thereby enabling on-site assembly and transportation costs. It is possible to provide a member for a rainwater storage structure that can reduce the amount of water and flexibly respond to the shape of the rainwater storage and infiltration tank.

[0016] The connecting member has a direction substantially perpendicular to the pipe-like member at least at its end. It is preferable to be able to be fitted and connected.

According to this configuration, the connection member is fitted to the pipe-like member, the pipe-like members are connected, and the connection between the eve and the connection member is repeated in the direction perpendicular to each other. It can be easily assembled into a three-dimensional structure on site. The height adjustment in the case of connecting two to four connecting members to one pipe-like member can be easily performed by using a spacer having a predetermined height or the like.

[0018] It is preferable that a back surface side of the cross member is opened to form a recess, and a longitudinal rib extending in a longitudinal direction is formed to define the recess.

According to this configuration, since the strength is secured, stable construction work can be performed.

Also, the structure after the construction can be made excellent. Of course, it is possible to increase the compressive strength in the horizontal direction in the former case and to increase the compressive strength in the vertical direction in the latter case by appropriately changing the lengths of the pipe longitudinal member and the horizontal member.

The connection between the lateral member and the connecting jig is made such that the end face of the lateral member and the outer peripheral surface of the connecting jig face each other, and the end face of the lateral member is the circumference of the connecting jig. It is preferable that the connection be non-rotatable.

According to this configuration, it is possible to prevent careless rotation of the horizontal member connected to the connection member at the time of construction, and it is possible to perform the operation stably and to increase the connection strength.

A protrusion or a hole is formed on an end face of the cross member, and a hole or a protrusion fitted to the protrusion or a hole of the cross member is formed on an outer peripheral portion of the connection jig. It is preferable that a large number of water draining through holes are formed on the top surface of the member.

According to this configuration, the connection of each member becomes reliable and strong, and the rainwater is reliably stored at the bottom.

It is preferable that a short side rib on the short side orthogonal to the longitudinal direction rib is formed in a recess on the back side of the horizontal member.

[0025] According to this configuration, the strength of the cross member is further enhanced against the deflection due to the load of the upper force only against the deflection due to the load of the upper force, and the construction of the worker during the construction More stable work can be done.

[0026] The outer circumferential surface of the pipe-shaped vertical member may have ribs formed along the vertical direction. It is preferable to attach a side panel having a locking portion that locks onto it.

According to this configuration, the strength of the pipe-like vertical member, in particular, the buckling strength, and the like can be remarkably improved with a simple configuration, and the strength of the assembly for rainwater storage structure can be generally improved. It can be done.

[0028] A flat panel which has a cap member which can be fitted to the uppermost position of the connection member and which can smooth this portion, and which can be disposed between the pipe-like longitudinal members and on the cross member Preferred to have and.

According to this configuration, unexpected directional force and external force can be prevented from acting during or after construction, and the strength of this portion can be maintained at a certain level or higher, and a flat panel is disposed. As a result, the strength of the assembly for a rainwater storage structure can be further enhanced, and the workability can be enhanced, for example, the worker can easily walk when performing the work of assembling the rainwater storage structure.

[0030] The three-dimensional structure preferably has a compressive strength of at least 10 8 kNZm ² or more.

According to this configuration, even if a soil covering of about 2 m is installed at the top, it has sufficient strength to be three times or more of the earth pressure.

In addition, the characteristic configuration of the rainwater storage structure according to the present invention includes a water-impervious material laid in the recess on the ground, a three-dimensional structure disposed on the upper surface side of the water-impervious material, and the three-dimensional structure. In the rainwater storage structure having a covering layer disposed on the upper surface side of the body, the three-dimensional structure comprises a plurality of pipe-like longitudinal members having a predetermined length, and the three-dimensional structure together with these pipe-like longitudinal members. It has a horizontal member to be assembled and a connecting jig for connecting the horizontal member to the pipe-shaped vertical member, and the pipe-shaped vertical member and the horizontal member are assembled through the connecting jig. It is in.

[0033] According to this configuration, when assembled, a large opening can be secured, which facilitates maintenance and inspection, and assembly of individual components and forces can be facilitated, enabling on-site assembly. As a result, it is possible to provide a rainwater storage structure using a member for a rainwater storage structure capable of reducing transportation costs and flexibly responding to the shape of the rainwater storage and infiltration tank.

A convective generation mechanism for convecting the rainwater stored inside the three-dimensional structure is provided. It is preferable that a solid recovery device capable of recovering accumulated solids be provided.

According to this configuration, for example, a convection generating mechanism is attached to the inside of the three-dimensional structure storing rainwater, for example, at one end side, and is operated periodically or irregularly to store the internal water storage. By convecting, not only solids such as earth and sand adhering to the three-dimensional structure itself, but also solids deposited on the bottom can be moved to the other, and these solids can be recovered as solids. By using the device, the interior of the rainwater storage structure can be efficiently cleaned at all times, and the high function of rainwater storage can be maintained for many years of use.

In the present specification, a solid substance is used as a concept representing a solid substance widely including various powdery and granular substances such as earth and sand and dust mixed in rain water.

[0037] As a result, rainwater storage does not require laborious work such as workers entering the water storage tank from the manhole on a regular basis, yet it is possible to reliably remove soil and the like that flowed into the rainwater storage structure. A structure can be provided.

[0038] The pipe-shaped longitudinal member is a member made of a plurality of resin members having a predetermined length, and is stored in the inside of the three-dimensional structure assembled by the resin-made pipe-shaped longitudinal members and the horizontal member. A plurality of aeration devices for detonating the rainwater can be removably attached! /, Preferred! /.

According to this configuration, it is possible to flexibly cope with the shape of the rainwater storage structure by changing the length, diameter and other shapes of the resin pipe-shaped vertical member and the horizontal member, and design freedom can be achieved. If the aeration system is installed properly, the stored rainwater can be cleaned, the deterioration of the water quality can be prevented, the utility value can be high, and the rainwater can be stored.

A lower recess is formed in the ground recess on the side facing the convection generating mechanism, and a pressure reduction capable of discharging the solid stored in the recess by the solid recovery device. Preferred to be a suction device.

According to this configuration, it is possible to collect the convectively moved solid matter in the recess opposite to the position of the convection generating mechanism, and thereafter, the solid matter accumulated in the recess is transferred to the vacuum suction device. Since the water can be discharged out of the rainwater storage structure, the inside of the structure can be reliably kept clean.

Air is fed through the inside of the pipe-like longitudinal member and stored in the three-dimensional structure. Preferably, an aeration device for detonating the rainwater is attachable.

[0043] According to this configuration, when attaching the aeration device, it can be attached to the member constituting the three-dimensional structure and air can be sent through this member to clean the stored rainwater by aeration. As in the prior art, a large amount of construction cost is spent, and the installation of the aeration pipe in the water storage tank becomes unnecessary, the rain water can be effectively cleaned at a low cost, and the deterioration of the water quality can be prevented. High value, can store rainwater.

[0044] As a result, by using the structure of the rainwater storage structure, it is possible to provide a rainwater storage structure that can be manufactured at low cost and can maintain high water quality of the stored rainwater.

[0045] The pipe-shaped vertical member is a plurality of resin members having a predetermined length, and a convection generating mechanism for convecting the rainwater stored inside the three-dimensional structure, and the rainwater It is preferable to be provided with a solid recovery device capable of recovering the solid deposited on the inside of the rainwater storage structure to be stored.

According to this configuration, a convection generating mechanism is attached, for example, to one end side of the three-dimensional structure storing rain water, and it operates periodically or irregularly to store the internal water storage. By convecting, not only solids such as earth and sand adhering to the three-dimensional structure itself, but also solids deposited on the bottom of the rainwater storage structure can be moved to the other, and these solids By collecting materials using a solid collection device, the interior of the rainwater storage structure can be efficiently cleaned at all times, and the high function of rainwater storage can be maintained for many years of use.

[0049] The three-dimensional structure is covered with a flexible water-permeable material, and a peripheral end of the water-permeable material covers at least the ground recess around the three-dimensional structure, A filler filling the ground recess around the three-dimensional structure on the upper surface of the permeable material It is preferable that the three-dimensional structure is pressed and covered with the water-permeable material by being placed.

According to this configuration, a large water storage space is formed by the three-dimensional structure, and the water-permeable material is firmly attached along the side surface and the upper surface of the three-dimensional structure to strengthen the three-dimensional structure. Even if the groundwater level rises due to long rain etc. in addition to the rainwater stored inside the rainwater storage structure, the three-dimensional structure will come to a standstill! Can be prevented.

[0051] As a result, when the rainwater storage structure is constructed by mainly burying the assembly for the rainwater storage structure, which is mainly made of resin molded body, to constitute the rainwater storage structure, even if the groundwater level rises, the rainwater storage that can strongly prevent floating. A structure can be provided.

The water-permeable material having flexibility is a non-woven fabric or a resin-made net material or mat material, and a resin-coated net material having a selected one kind of force, and the filling has the three-dimensional structure. It is preferable that it is a stone material which fills the ground recess around the body.

[0053] According to this configuration, the non-woven fabric made of non-woven fabric and the non-woven fabric made of non-woven resin is excellent in water permeability and flexibility, and is placed by the filler. Even if pressed, it has sufficient strength, is durable, and is relatively inexpensive, so it is possible to avoid an increase in manufacturing costs. Similarly, resin-coated netting can be used. In addition, since the stone as the filler is heavy, the three-dimensional structure can be firmly held down via the non-woven fabric or resin-made net material or mat material, or the resin-coated net material. Even if the level of stored rainwater rises, it can exert a great deal of resistance to buoyancy. Not only that, a space is formed in the place where the stone is placed, and it is possible to store water in this place.

A convective generation mechanism for convecting the rainwater stored inside the three-dimensional structure is provided, and a solid recovery device capable of recovering the deposited solid is provided, and the third order is further provided. It is preferable that a plurality of aerators for detonating the rainwater stored inside the original structure be detachably attachable.

According to this configuration, the three-dimensional structure can be cleaned by maintaining the convection by the convection generating mechanism regularly or irregularly, and the water storage function can be constantly maintained high, and the force can also be reduced. The aeration system can be used to clean rain water, prevent deterioration of the water quality, and enhance the utilization value of stored rain water.

Brief description of the drawings

FIG. 1 is (a) a plan view and (b) a front sectional view of a connecting jig constituting the member for a rainwater storage structure according to the first embodiment of the present invention.

[FIG. 2] (a) Left side view, (b) plan view, (c) n-II cross-sectional view of a lateral member constituting the member for a rainwater storage structure according to the first embodiment of the present invention.

FIG. 3 is (a) a front view, (b) a cross-sectional view along a line n-III of a pipe-shaped vertical member constituting the member for a rainwater storage structure according to the first embodiment of the present invention.

FIG. 4 is a front view illustrating the assembly procedure of the rainwater storage structure assembly A using a pipe-like member and a connection member.

FIG. 5 is a plan view illustrating the assembly procedure of the rainwater storage structure assembly A using a pipe-like member and a connection member.

[Fig. 6] A schematic cross-sectional view of a rainwater storage structure using the rainwater storage structure member of Fig. 1

[FIG. 7] (a) front sectional view, (b) b-b sectional view of a pipe-like member which is a member for a rainwater storage structure according to a second embodiment of the present invention

[FIG. 8] (a) plan view, (b) front sectional view, (c) c c sectional view of a connecting member which is a member for a rainwater storage structure according to a second embodiment of the present invention

[FIG. 9] A perspective view for explaining the assembly procedure of the assembly A for a rainwater storage structure using the pipe-like member of FIG. 7 and a connection member.

FIG. 10 is a perspective view for explaining the assembly procedure of the assembly A for rainwater storage structure using the pipe-like member and the connection member of FIG. 7;

FIG. 11 is a perspective view showing a unit block of an assembly member for a rainwater storage structure according to a third embodiment of the present invention.

12 is a perspective view of a cross member constituting the assembly member for a rainwater storage structure of FIG. 11 as viewed from the upper surface direction.

13] A perspective view also showing the force on the bottom side of the cross member in FIG. 12. [FIG.

[Fig. 14] Deformation of the connection structure between the cross member and the connecting jig that constitute the assembly member for rainwater storage structure It is a perspective view which shows the middle of an example assembly.

FIG. 15 is a perspective view showing an assembled state of the connection structure of FIG. 14;

FIG. 16 is a perspective view showing a modification of the pipe-shaped vertical member according to the third embodiment.

FIG. 17 is a perspective view showing a cap member according to Modification 3 for use at the uppermost position of the connection member shown in FIGS. 14 and 15;

FIG. 18 is a left side view of a panel according to a modification 4 of the third embodiment.

FIG. 19 is a plan view of the panel of FIG.

FIG. 20 is a bottom view of the panel of FIG.

21 is a sectional view taken along the line A-A of FIG.

FIG. 22 is a front view showing a modified example of the side panel according to the third embodiment.

Fig.23 is a left side view of the side panel of Fig.22.

FIG. 24 is a bottom view of the side panel of FIG.

FIG. 25 is a schematic front cross-sectional view of a rainwater storage structure according to a fourth embodiment of the present invention.

FIG. 26 is a schematic front cross-sectional view of a rainwater storage structure according to a fifth embodiment of the present invention.

FIG. 27 is a schematic front cross-sectional view of a rainwater storage structure according to a sixth embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

First Embodiment

A first embodiment of the present invention will be described in detail with reference to the drawings. 1 to 3 show a connecting jig 1 used as an assembly member for a rainwater storage structure, a horizontal member 2 and a pipe-like vertical member 3. That is, FIG. 1 (a) shows the planar structure of the connection jig 1, and (b) shows an I-I cross-sectional structure. Fig. 2 (a) shows the left side structure of the cross member 2, (b) shows the bottom structure, and (c) shows the II II sectional structure. FIG. 3 (a) shows the front structure of the pipe-like longitudinal member 3, and FIG. 3 (b) shows the III-III cross sectional structure. Figures 4 and 5 combine the connection jig 1 shown in Figures 1 to 3 with the horizontal member 2 and the pipe-like longitudinal member 3 to assemble a jungle gym-like rainwater storage assembly A as a three-dimensional structure. Fig. 4 shows the procedure, Fig. 4 shows its partial front structure, and Fig. 5 shows its partial planar structure.

The connection jig 1 is made of resin. As shown in FIG. 1, it has a cylindrical portion la which can be externally fitted to the longitudinal member 3, and a projecting portion lb which protrudes at four points on the outer peripheral surface and engages with the end of the transverse member 2 to connect them. ing. The projection lb receives and engages an end projection 2a of the cross member 2 described later. Four through holes lc are formed. Furthermore, a somewhat small diameter through hole Id is also formed inside the cylindrical portion la to reduce the weight, and the rain water is moved downward and stored.

The transverse member 2 is made of resin. As shown in FIG. 2, end protrusions 2a inserted into and engaged with the through holes lc of the connection jig 1 are formed downward at both ends, and predetermined intervals are provided at two positions in the longitudinal direction. A reinforcing rib 2b is provided. However, the number, position, shape, etc. of the reinforcing ribs 2b can be changed variously.

The pipe-shaped vertical member 3 also has a force made of resin, and as shown in FIGS. 3 (a) and 3 (b), it has a cylindrical shape having a predetermined length, and the cylindrical portion la of the connection jig 1 is It is possible to fit inside.

As shown in FIGS. 4 and 5, a part of the assembly A for a rainwater storage structure, which constitutes a three-dimensional structure in a jungle gym shape, forms an upper end of each of the pipe-shaped vertical members 3 erected. Connect and attach the connection jig 1 to the. Thereafter, of the connecting jigs 1 mounted on the two pipe-shaped vertical members 3, the end projections 2a of the horizontal member 2 are respectively inserted into the through holes lc of the two connecting jigs 1 adjacent to each other. By inserting and engaging, the pipe-shaped longitudinal member 3 and the cross member 2 are connected, and this is repeated.

Next, a construction example in which the assembly A for a rainwater storage structure, which is an assembly of the assembly member for a rainwater storage structure according to the present embodiment, is used for a rainwater storage structure.

As shown in FIG. 6, a recess (pit) of about 1 to 5 m is excavated * on the ground, and side grooves 7 are formed around the pit, and crushed stone, sand, etc. are laid on the bottom of the pit. Make a foundation B by leveling. After laying the water-impervious sheet 4 which is a water-impervious material on the surface, the pipe-shaped vertical members 3 made of resin and the connecting jig 2 are used to form the internal volume of the pit as shown in FIGS. Construct an assembly A for the rainwater storage structure in the form of Jian Daljim. If the internal volume of the pit is large, the rainwater storage structure assembly A may be assembled in the pit, or the rainwater storage structure assembly A is assembled outside the pit and then inserted into the pit. May be The rainwater storage structure assembly A assembled in this way is preferably made of resin and / or fastened with a belt made of metal or the like. Furthermore, a rectangular panel may be inserted between the pipes at the side peripheral part to ensure flatness at the side peripheral part and to increase strength. [0064] On the side portion C of the assembly A for rainwater storage structure, backfilling is performed if necessary, and a pipe 8 is installed which allows rainwater to flow into the pit from the side groove 7 and is communicated. Furthermore, the upper surface is covered with a water-impervious sheet 5, and a soil covering 6 of about 0.5 to 5 Lm is applied from above. The upper surface water blocking sheet 5 and the soil cover 6 form a cover layer. However, instead of coating the water blocking sheet 5 on the upper surface of the rainwater storage structure assembly A, a water permeable sheet may be coated to allow rainwater to permeate. The gutter 7 is slightly deeper at the bottom so that a mud 9 is formed at the bottom.

[0065] The three-dimensional structure, rainwater storage structure assembly A, preferably has a compressive strength of at least 108 kNZm ² or more. In this way, even if soil cover of about 2 m (load: about 36 kNZm ² ) is installed at the top, it has sufficient strength that is more than three times the earth pressure. Specifically, when using a cross member of about 50 cm in length, use a pipe-like member having a compressive strength of at least 27 kNZ with 4 Zm ² and use a cross member of about 40 cm in length. 6. Use a pipe-shaped member with 25 zm ² and at least a compressive strength of approximately 17.28 kNZ.

[0066] In this way, it is possible to temporarily store rainwater and use it for water sprinkling in gardens etc., wash water, emergency water, etc. for various uses, or to have an adjustment function that allows a large amount of rain water to be released gradually. It can be done. In addition, since the curing period is unnecessary as compared with the case where it is made of concrete, the construction speed of the rainwater storage structure can be made much faster.

Although an example in which the pipe-like member 3 is configured to be able to be fitted inside the tubular portion la of the connecting jig 1 has been described, the outer diameter of the tubular portion la of the connecting jig 1 is reduced to form a pipe It may be fitted inside the member 3.

In the above example, the end projection 2a of the lateral member 2 is cylindrical, and the through hole lc of the connecting jig 1 engaged by inserting the end projection 2a is circular. Instead of this, the end projection 2a of the cross member 2 may be formed in a square shape, and the through hole lc of the connection jig 1 may be formed in a square shape so as to be insertable. In this way, the positions of the cross member 2 and the connection jig 1, that is, the positions of the cross member 2 and the pipe-like member 3 are fixed, and both are locked, making it easy to handle at the time of assembly Preferred to resist deformation by. Example 1

An example of actual construction will be described. Using a polyethylene pipe (manufactured by Sekisui Chemical Co., Ltd .; trade name: Eslonno, RP PE) with an outer diameter of about 60 mm, a wall thickness of about 5.5 mm, and a length of about 50 cm, using the connecting jig shown in FIG. A rainwater storage structure assembly A having a height of about 3 m and a width of about 3 m, as partially shown in FIGS. 4 and 5, is formed and placed in a pit having a predetermined internal volume of about 5 m in depth. A storage structure was constructed. This polyethylene pipe has a compressive strength of approximately 27 kNZ in the longitudinal direction, and using 4 per lm ² gives a compressive strength of 108 kN / m ^{2 and a} covered soil of 2 m (load: about 36 kN / m ² ) Even in the case of ² ), since a compression strength of about 3 times or more can be obtained, it can be seen that it is sufficiently practical.

Actually, a rainwater storage structure was constructed with a size of lm X lm X lm, and a weight equivalent to a 2 m soil cover was placed on it, and more than a year has passed, but it becomes a problem in use Deformation and other troubles did not occur at all.

Second Embodiment

A second embodiment of the present invention will be described in detail with reference to the drawings. 7 and 8 show a pipe-like longitudinal member 11 and a connecting member 12 used as an assembly member for a rainwater storage structure according to this embodiment. That is, FIG. 7 (a) shows a front sectional structure of the pipe-like longitudinal member 11, and FIG. 7 (b) shows a b-b sectional structure. Fig. 8 (a) shows the planar structure of the connecting member 12, (b) shows the front sectional structure, and (c) shows the c-c sectional structure. FIGS. 9 and 10 show a procedure for assembling a jungle gym-like rainwater storage structure assembly A which is a three-dimensional structure by combining the pipe-shaped vertical members 1 and the connecting members 2 shown in FIGS.

The nove shaped longitudinal member 11 also has a resin-made force, and as shown in FIG. 7, it has a substantially cylindrical shape having a cylindrical portion 11 a and a slightly enlarged diameter portion l ib at the lower portion thereof. There is. The inner diameter of the enlarged diameter portion l ib is slightly larger than the outer diameter of the cylindrical portion 11a so that the pipe-like members 11 can be connected to each other in the height direction, and can be externally fitted to the cylindrical portion 11a. There is. The connecting member 12 also has a resin-made force as with the nove-shaped member 11. As shown in FIG. 8, a cylindrical connecting end 12a formed at both ends and a shaft 12b connecting the connecting ends 12a are formed, and the shaft 12b is shown in FIG. 8 (c). The cross section is approximately + + shaped!

As shown in FIG. 9, the pipe-shaped vertical member 11 and the connecting member 12 are a combination of the pipe-shaped vertical members 11. It is possible to assemble a jungle gym-like rainwater storage structure assembly A by connecting several pipe-shaped vertical members 11 with the connection end 12a of the connection member 12 by setting several tubes in advance. The cylindrical connecting end 12a of the connecting member 12 is fitted onto the cylindrical portion 11a of the nove-like member 11 and is locked at the top of the enlarged diameter portion l ib, and the outer diameter of the enlarged diameter portion l ib and the connecting member The outer diameters of the twelve cylindrical connection ends 12a are substantially the same. In this case, when the two members are assembled, the unevenness in the longitudinal direction in the assembly A for rainwater storage structure is reduced, and it is possible to prevent the accumulation of earth and sand and the like in this portion, which is preferable. Of course, the connection between the pipe-shaped vertical member 11 and the connecting member 12 may be established in the pit after the pipe-shaped vertical member 11 and the connecting member 12 are connected.

Further, after connecting one connecting member 12 to two pipe-shaped vertical members 11, in order to connect them to each other, as shown in FIG. Fit to and connect. In this case, the connection end 12a of the new connection member 12 is superimposed on the upper end of the connection end 12a of the existing connection member 12, but a step may be generated in height while repeating a plurality of connections. However, the level difference can be adjusted by using a cylindrical spacer 13 having a predetermined height and having an inner diameter that can be externally fitted to the cylindrical portion 11 a of the pipe-shaped vertical member 11. Further, also in the case of connecting the pipe-shaped vertical members 11 in the height direction, the spacer 13 having an appropriate length can be used. By repeating this operation, it is possible to construct a jungle gym-like assembly A for rainwater storage structure.

The assembly for a rainwater storage structure A, which is an assembly of the assembly member for a rainwater storage structure according to the second embodiment, is configured as shown in FIG. 6 also for a construction example using the rainwater storage structure. Can. While forming a recess (pit) of about 1 to 5 m on the ground, form a groove IJ 'around the pit, form a gutter 7 around the pit, lay a crushed stone, sand, etc. on the bottom of the pit and level it to form a foundation B . After laying the water-impervious sheet 4 on the surface, a jungle gym-like rain according to the internal volume of the pits is made from the fibrous nove vertical member 11 and the connecting member 12 according to the procedure shown in FIGS. Construct assembly A for water storage structure. If the internal volume of the pit is large, the rainwater storage structure assembly A may be assembled in the pit, and the rainwater storage structure assembly A may be assembled outside the pit and then inserted into the pit. You may The rainwater storage structure assembly A assembled in this way is fastened and fixed with a belt made of resin or metal. Is preferable as in the first embodiment. Furthermore, a rectangular panel may be inserted between the pipes at the side surface outer peripheral portion to ensure the flatness at the side surface outer peripheral portion and to increase the strength. An assembly for a rainwater storage structure which is a three-dimensional structure of the present embodiment

A can also be made to have a compressive strength of at least 10 8 kNZ m ² or more.

Example 2

An example of actual construction will be described. Using a polyethylene pipe (manufactured by Sekisui Chemical Co., Ltd .; trade name: Eslonno, RP PE) with an outer diameter of about 60 mm, a wall thickness of about 5.5 mm, and a length of about 50 cm, the height shown in FIGS. A rainwater storage structure assembly of about 3 m in height and width of about 3 m was formed and placed in a pit having a predetermined internal volume of about 5 m in depth to construct a rain water storage structure as shown in FIG. In this case, as in the first embodiment, polyethylene pipes has a compressive strength of about 27kNZ present longitudinal, using four per lm ^2, compression strength 108kN / m ² It can be understood that even when the soil cover is 2 m (load: about 36 kN / m ² ), a compressive strength of about 3 times or more can be obtained, so that it is sufficiently practical.

[0074] Actually, a rainwater storage structure was constructed with a size of lm X lm X lm, and a weight equivalent to a 2 m soil cover was placed on it and it has been over a year or more, but it becomes a problem in use Deformation and other troubles did not occur at all.

Third Embodiment

A third embodiment according to the present invention will be described in detail with reference to the drawings. FIG. 11 is a perspective view of a unit block obtained by assembling the connection jig 1 used as an assembly member for a rainwater storage structure according to the third embodiment, the horizontal member 22 and the pipe-like vertical member 3. That is, FIG. 12 is a perspective view seen from the top surface direction of the horizontal member 22, and FIG. 13 is a perspective view seen from the bottom surface side of the horizontal member 22 in FIG.

The connecting jig 1 is made of resin, and as shown in FIG. 11, a cylindrical portion la which can be externally fitted to the vertical member 3, and four points of force on the outer peripheral surface are projected to the end of the horizontal member 22 and It has a projection 1 b that engages and connects the two. The projection lb is formed with four through holes lc for receiving and engaging the end projections 22a of the cross member 22 described later. A somewhat small diameter through hole is also formed inside the cylindrical portion la to reduce the weight, and the rainwater is moved downward and stored. The nove shaped longitudinal member 3 is made of resin and has a cylindrical shape having a predetermined length, and can be fitted inside the cylindrical portion la of the connection jig 1.

The cross member 22 is also made of resin. As shown in FIGS. 12 and 13, end protrusions 22a inserted into and engaged with the through holes lc of the connecting jig 1 are formed downward at both ends on the back surface side, and between the end protrusions 22a A recessed portion 22b opened downward is formed. Further, two longitudinal reinforcement ribs 22c are provided at predetermined intervals in the longitudinal direction so as to define the recess 22b. In the short side direction, reinforcing short side ribs 22d are provided at several places (three places in FIG. 13) to define the recess 22b. By providing the longitudinal rib 22c, it is possible to exert a large strength against the compressive force acting on the transverse member 22 in the longitudinal direction. By providing the short side ribs 22d, it is possible to exhibit durability against external force in the twisting direction acting on the cross member 22. The heights of the longitudinal ribs 22c and the short side ribs 22d are formed somewhat lower than the height of the longitudinal vertical wall 22e which forms the recess 22b, so that the weight can be reduced. This is because the strength of the top surface on the surface side where the shallow groove 22h extending in the longitudinal direction of the cross member 22 is formed and the strength balance between the longitudinal rib 22c and the short side rib 22d are formed. . In addition, when the strength of the top surface of the cross member 22 is high, the height balance of the longitudinal rib 22c and the short side rib 22d should be the same as the height of the longitudinal vertical wall 22e forming the recess 22b. Above preferred. However, the number, position, shape, etc. of the reinforcing ribs 22c can be changed variously. Further, as shown in FIG. 12, a large number of water removal through holes 22f are formed on the top surface on the surface side of the lateral member 22 at predetermined intervals.

In order to form the rainwater storage structure assembly A constituting a three-dimensional structure in a jungle gym shape, the connection jig 1 is fitted and mounted on the upper end of each of the vertically arranged pipe-like longitudinal members 3. Among the connecting jigs 1 attached to the two pipe-shaped vertical members 3, the end projections of the horizontal member 22 in each of the through holes lc of the two connecting jigs 1 adjacent to each other. Insert 22a and engage. Furthermore, the pipe-shaped longitudinal member 3 and the cross member 22 are connected, and this is repeated.

[0079] The three-dimensional structure, rainwater storage structure assembly A, preferably has a compressive strength of at least 108 kNZm ² or more. In this way, even if soil cover of about 2 m (load: about 36 kNZm ² ) is installed at the top, it has sufficient strength that is more than three times the earth pressure. Specifically, when combining a pipe-like longitudinal member approximately 40 cm long and a horizontal member 40 cm long In this case, use a pipe-shaped longitudinal member with 6.25 Zm ^{2 and} at least 17.28 kNZ compressive strength.

[0080] In this way, it is possible to temporarily store rainwater and use it for water sprinkling in gardens etc., wash water, emergency water, etc. for various uses, or to have an adjustment function that allows a large amount of rain water to be released gradually. It can be done. In addition, since the curing period is unnecessary as compared with the case where it is made of concrete, the construction speed of the rainwater storage structure can be made much faster.

A modification of the connecting member constituting the rainwater storage structure assembly member will be described with reference to FIGS. The connecting member 21 has four projecting portions 21b formed at substantially the center in the height direction of the cylindrical portion 21a, and a through hole 21c is formed in each projecting portion 21b. It is the same as the connecting member 1 shown in 11. However, while four projecting parts 21d are formed between each projecting part 21b, four vertical grooves 21e are formed in the upper and lower cylindrical parts 21a, and further, the upper end side of the projecting part 21d is somewhat protruded There is a difference that forms the overhang projection 21f. Since four projecting portions 21d are formed between the projecting portions 21b, when the cross member 22 is connected, it is possible to prevent the cross member 22 from rotating in the horizontal direction (anti-rotation mechanism). As a result, when performing the construction work, since the horizontal member 22 does not rotate and move carelessly, the work becomes easy and the effect of suppressing the downward deflection of the horizontal member at the construction work is exhibited.

Since the connecting member 21 is configured as described above, when the vertical member is fitted to the upper and lower cylindrical portions 21a, the cylindrical portion 21a is appropriately expanded in diameter. As the design freedom increases, the dimensional flexibility of the longitudinal members increases, and the installation workability improves. Furthermore, also for the connection with the lateral member 22, the recess 22g on the end face side of the vertical wall 22e formed in the lateral member 22 and the tension formed on the upper side of the projecting portion 21d of the connecting member 21. The protrusion 21f is engaged, the connection between the connection member 21 and the cross member 22 is further strengthened, and the strength of the assembly A for rainwater storage structure in which the assembly member for rainwater storage structure is assembled is significantly improved. The connection between the connecting member 21 and the cross member 22 is achieved by lowering the cross member 22 in the direction shown by the arrow R in the state force of FIG. 14 (before connection) to the connected state shown in FIG. 15 (after connection). As shown in FIGS. 14 and 15, a shallow concave groove 22h extending in the longitudinal direction is formed on the top surface on the surface side of the cross member 22, and a water removal through hole 22f is formed on the bottom thereof. There is. The shape, number, and the like of the recessed grooves 22h can be changed as appropriate. The number, diameter, etc. of the through holes 22f for draining can be changed as appropriate. However, compared with the case where the shape of the concave groove is simply made circular, when it is formed in a wave shape, the strength against deformation especially in the horizontal direction is enhanced.

As shown in FIG. 16, the longitudinal rib 14 for reinforcement may be attached to the outer peripheral surface of the longitudinal member 3 along the vertical direction. The longitudinal ribs 14 are narrowly extended at the center of the outer peripheral surface except for the upper and lower end portions of the pipe-shaped longitudinal member 3 and are substantially equally spaced on the outer peripheral surface of the pipe-shaped longitudinal member 3. Four are attached to Among them, the water draining holes 14a are formed in the upper and lower two places of the longitudinal rib 14 in the two. According to this structure, the strength of the pipe-like longitudinal member 3, particularly the buckling strength, can be remarkably improved with a simple structure. The width, length, number, etc. of the longitudinal ribs 14 can be variously changed, and the material is preferably the same material as the pipe-like longitudinal member 3 but may be different. Also, the longitudinal rib 14 may be attached to the inner circumferential surface side of the novee-like longitudinal member 3 or may be integrally formed as a ribbed pipe-like longitudinal member from the beginning.

When the pipe shown in FIG. 16 (a material having an outer diameter of about 60 mm, a wall thickness of about 4 mm, a length of about 400 mm, and a flexural modulus of 1 700 MPa) was used, a compressive strength of 200 kNZm ² was obtained.

In the uppermost position of the connecting member 11 shown in FIGS. 14 and 15, since the pipe-shaped vertical member 3 is not connected, the cylindrical portion 21a directed upward is unnecessary. Therefore, it is preferable to remove the protruding part of the upper part of the cylindrical portion 21a and fit the cap member 15 shown in FIG. The cap member 15 includes a thin disk-like top portion 15a and an inner cylindrical portion 15b which is fitted into the central hole 21g of the connecting member 21. Stepped ribs 15c are formed vertically at six intervals. Then, when the inner cylindrical portion 15b of the cap member 15 is fitted into the central hole 21g at the top of the connecting member 21, the lower edge of the enlarged diameter rib 15d in contact with the top 15a and the peripheral edge of the central hole 21g And the top end of the cross member 22 can be fitted into the gap formed between the top 21a. In this way, The uppermost position of the connecting member 21 is maintained substantially flat, and unexpected directional force can be prevented from being applied during or after construction, and the strength of this portion can be maintained at a certain level or more. However, the cap member 15 can be mounted not only at the uppermost position of the connecting member 21 shown in FIGS. 14 and 15 but also at the uppermost position of the connecting member 1 shown in FIG.

Further, when assembling the rainwater storage structure assembly A, square plate-like panels 16 shown in FIGS. 18 to 21 are disposed by being fitted between the pipe-like longitudinal members 3 and on the transverse members 2; In addition to securing flatness for enhancing assembling workability, the strength of the rainwater storage structure assembly A may be enhanced. This panel 6 has a smooth upper surface, as shown in FIG. 18 for the left side structure, in FIG. 19 for the planar structure, in FIG. 20 for the bottom structure and in FIG. It is easy for workers to walk, and holes 17 are made at several places (four places in Figs. 19 and 20) near the outer periphery, and panels 16 adjacent to each other are bound with polypropylene bands. It has become possible. Furthermore, the uneven portion 18 is projected to the back side to be formed in several places (four places in FIGS. 19 and 20) so that it can be transported in a state in which a large number of panels 16 are stacked. The convex part which protrudes to the back surface of the is fitted with the concave part of the upper surface of the panel 16 on the lower surface side, and the panel 16 in which a large number of sheets are stacked deviates each other at the time of transportation!

On the back side, a substantially turtle-shaped pattern is formed, which also acts as a reinforcing rib, achieving both lightening and strengthening at the same time. Further, the four corners of the panel 16 are formed in a substantially 1Z4 arc shape so as to be in surface contact with the connecting members 1 and 21. However, at the time of actual construction, it is also possible to place the panel 16 upside down and use it.

Furthermore, a side panel 19 as shown in FIGS. 22 to 24 may be mounted on the outer periphery of the side of the rainwater storage structure assembly A to improve the strength of the rainwater storage structure assembly A. . This side panel 19 has a structure opened like a turtle shell over the entire surface as in the front structure shown in FIG. 22 so that weight saving and strength strengthening are achieved, and pipes are provided on both sides. It has a locking portion 19 a locked to the vertical member 3. The locking portion 19a can be formed in various structures. For example, a pipe-like longitudinal member 3 having longitudinal ribs 14 shown in FIG. As shown in FIG. 24, the planar structure of the side panel 19 is formed by forming a pair of projections 19b on the side panel 19 engaged with the longitudinal rib 14 and sandwiching the longitudinal rib 14 between the pair of projections 19b. It is conceivable to use a locking system that makes it easy. By mounting such a side panel 19 on the side surface outer peripheral portion of the rainwater storage structure assembly A or the side surface of the unit block as appropriate, a large resistance to ground displacement can be exhibited.

Also, in order to reinforce the tortoise pattern formed on the entire surface of the side panel 19, a straight horizontal rib or a straight vertical rib is formed so as to cross the tortoise pattern. It is also good. When such a rib is formed, the side panel 19 is hardly stagnated even when an external force is applied, and the side panel 19 can be hardly detached from the pipe-shaped vertical member 3.

An assembly A for a rainwater storage structure, in which the assembly member for a rainwater storage structure according to the third embodiment is assembled, can be configured as shown in FIG. 6 for a construction example of a rainwater storage structure. While forming a ground recess (sometimes referred to as a pit below) of about 1 to 5 m on the surface, IJ · forms a gutter 7 around the pit and lays crushed stone, sand etc. on the bottom of the pit · construction Make a foundation B by leveling. After laying the water-impervious sheet 4 which is a water-impervious material on the surface, further joining is performed while forming unit blocks shown in FIG. 1 from resin-made longitudinal members 3 and connecting jig 1 made of resin. Expand and arrange a jungle gym-like assembly A for rainwater storage structure according to the internal volume of the pit.

Next, the side part of the assembly A for rainwater storage structure disposed in the pit performs backfilling C as necessary, and the piping 8 which allows rainwater to flow into the pit from the side groove 7 is used. Then, cover the top of the sheet with a water-impervious sheet 5 and cover the soil with a thickness of about 0.5 to 5 Lm. The above-mentioned water-impervious sheet 5 on the upper surface, soil cover 6, etc. form a covering layer. In addition, inspection holes may be provided at a plurality of locations of the coating layer 6. Instead of covering the water blocking sheet 5 on the upper surface of the rainwater storage structure assembly A, the water permeable sheet may be covered to allow rainwater to permeate. The gutter 7 is somewhat deeper at the bottom so that a mud 9 is formed at the bottom.

Example 3

An example of actual construction will be described. Polypropylene pipe with an outer diameter of about 60 mm, a thickness of about 5. O mm and a length of about 40 cm (Fuji Chemical Co., Ltd. trade name: Fuji 'polypropylene-PP) and A pit with a predetermined internal volume of about 5 m deep is formed using a connection jig to form a rainwater storage structure assembly A about 3 m high and about 3 m high and low, as partially shown in Figs. It was placed inside to construct a rainwater storage structure. This polypropylene pipe has a longitudinal compressive strength of about 10 5 kNZ (26.25 kNZ), and using 6.25 pipes per ² lm, a compressive strength of 160 kN / m ² is obtained and the soil covering is covered. It can be understood that even when the value of 2 m (load: about 36 kN / m ² ) is used, a compressive strength of about 4.5 times or more can be obtained, so that it is sufficiently practical.

[0093] In fact, a rainwater retention structure is constructed with a size of 1 m x l. 2 m x l. 2 m (for a unit of 0.4 m pitch), and a weight corresponding to a 2 m covered soil from above It has been over a year since it was placed, but there were no deformations or other problems that would cause problems in use.

Fourth Embodiment

FIG. 25 shows a schematic front cross-sectional structure of the rainwater storage structure according to the fourth embodiment. The convection generating mechanism 23 for convecting the rainwater stored inside the assembly A for rainwater storage structure is insertable through the inspection hole 10, and when the convection for a predetermined time is completed, it is removed appropriately. It has become possible. As the convection generating mechanism 23, for example, a screw device 23b may be provided at the end of the shaft 23a, and may be configured to be inserted into the interior of the assembly A for rainwater storage structure by a motor not shown. The screw device 23b is driven to agitate and circulate the stored rainwater, and the sediment adhering to the assembly A for rainwater storage structure is dropped to the bottom and accumulated on the sediment and bottom. We push the earth and sand to the other side. A recess 24 lower than the bottom of the pit is formed on the other side where the assembly A for a rainwater storage structure is disposed, and sand and the like are formed in the recess 24 by the convection of the stored rainwater by the convection generating mechanism 23. It will be deposited. In this case, the bottom of the pit may be inclined toward the recess 24. After the convection is generated by the convection generating mechanism 23 for a predetermined time, this may be removed.

[0094] A deposit 25 such as earth and sand deposited in the recess 24 is a solid material recovery device that can be inserted into the recess 24 with a long hose etc., as needed, through the inspection hole 10 and the like. The vacuum suction device 26 discharges out of the pit. As the decompression suction device 26, various commercially available vacuum devices can be selected and adopted according to the storage capacity and specifications of rainwater.

Furthermore, the aeration device 27 can be inserted into the interior of the rainwater storage structure assembly A through the inspection hole 10 It has become possible to keep fresh water inside by taking fresh air into the rainwater and aerating it properly, and by acidifying it, it is possible to clean rain water and prevent bad water quality. There is. The aeration device 27 is also detachable, and can be inserted into the pit and operated as appropriate during use, and can be removed when the aeration processing is completed.

As the power source used for the convection generation mechanism 23, the vacuum suction device 26, and the aeration device 27, in addition to a commercial power source, portable power generation devices, or batteries such as various primary batteries and secondary batteries may be used. In addition, a solar cell power generator or a wind power generator may be provided on the ground part of the rainwater storage structure, and the power obtained from this may be used. In particular, the screw device 23b of the convection generating mechanism 23 and the propeller for wind power generation are directly connected, and the screw device 23b is rotated.

In addition, although the convection generating mechanism 23, the vacuum suction device 26 for recovering solid matter, and the aeration device 27 are configured to be detachable, they may be fixed to a rainwater storage structure.

Fifth Embodiment

FIG. 26 shows a schematic front sectional view of the rainwater storage structure according to the fifth embodiment. A convection generation mechanism 23 for convecting the rainwater stored in the assembly A for the rainwater storage structure is insertable through the inspection hole 10, and can be removed as appropriate when the convection for a predetermined time is completed. It is supposed to be. As the convection generating mechanism 23, for example, a screw device 23b can be provided at the end of the shaft 23a, and it is inserted into the inner part of the assembly A for rainwater storage structure, and the motor is not shown. The screw device 23b is driven to agitate and circulate the stored rainwater, and the sediment adhering to the assembly A for rainwater storage structure is dropped to the bottom and these sediment and sediment deposited on the bottom. Push etc. toward the other side. A recess 24 lower than the bottom of the pit is formed on the other side where the assembly A for a rainwater storage structure is disposed, and sand and the like are formed in the recess 24 by the convection of the stored rainwater by the convection generating mechanism 23. It will be deposited. In this case, the bottom of the pit may be inclined toward the recess 24. After the convection is generated by the convection generating mechanism 23 for a predetermined time, this may be removed.

[0098] A deposit 25 such as earth and sand deposited in the recess 24 is a solid material recovery device that can be inserted into the recess 24 with a long hose etc., as needed, via the inspection hole 10 and the like. Decompression suction device 26 Are discharged out of the pit. As the decompression suction device 26, as described with reference to FIG. 25, various commercially available vacuum devices can be selected and adopted according to the storage capacity and specifications of rainwater.

Furthermore, through the inspection hole 10, the aeration device 37 can be connected to the pipe-like longitudinal member 3 constituting the rainwater storage structure assembly A, and fresh air can be stored in the rainwater stored inside. By sending it in, aerating and oxidizing it, it is possible to clean rainwater and prevent the deterioration of water quality. As described later, the aeration device 37 can be connected to the upper portion of the pipe-like longitudinal member and the air supply pump P is connected. By operating the air supply pump P, air is fed into the interior 3a of the pipe-like longitudinal member 3 and the air is released from the air bubbles pierced near the bottom of the pipe-like longitudinal member 3! Ru. The aeration device 37 is removable and can be removed once the aeration process is completed.

As the power source used for the convection generation mechanism 23, the vacuum suction device 26, and the aeration device 37, in addition to a commercial power source, a portable power generation device or batteries such as various primary batteries and secondary batteries may be used. In addition, a solar cell power generator or a wind power generator may be provided on the ground part of the rainwater storage structure, and the power obtained from this may be used. In particular, the screw device 23b of the convection generating mechanism 23 and the propeller for wind power generation are directly connected, and the screw device 23b is rotated.

In the present embodiment, the convection generation mechanism 23, the solid matter recovery device 26, and the aeration device 37 are respectively configured to be detachable, but may be fixed to a rainwater storage structure. As shown in Fig. 26, the number of pumps P in 37 need to be several, so that only a single pump is used to supply air.

Sixth Embodiment

FIG. 27 shows a schematic front sectional view of the rainwater storage structure according to the sixth embodiment. After arranging the assembly A for rainwater storage structure on the water blocking sheet 4, it is made of a non-woven fabric which is a flexible water-permeable material so as to cover the assembly A! A net made of resin or non-woven fabric made of resin In one case, a resin mat material or a resin-coated net material (hereinafter may be simply referred to as a mat material or the like) 30 is coated over the side and top of the rainwater storage structure assembly A. The peripheral edge of this mat material 30 is an excavated portion excavated somewhat lower than the ground around the pit. As a result, the mat material or the like 30 is disposed so as to cover the side surface and the top surface of the overburden portion periphery 31b, the overburden portion slope 31a, and the assembly A for rainwater storage structure. Furthermore, although it is preferable that the peripheral edge of the mat material 30 and the like is disposed as far as the periphery 31b of the overburden portion, it is not necessary that the peripheral edge 31b of the overburden portion be at least the overburden portion It only needs to reach Slope 31 a.

[0102] After that, the mat material etc. 30 is rainwater when it is pressed and covered with its own weight 32 by the lump 32 made of massive crushed stone or stone which fills the upper surface and full strength pit of the mat material etc. It is firmly attached along the side and top of the storage structure assembly A, and the rainwater storage structure assembly A is pressed firmly. As a result, in addition to the rainwater stored inside the rainwater storage structure, even if the groundwater level rises due to long rain etc., the situation that the assembly A for rainwater storage structure rises is surely prevented. Can. A void is formed between the fillings 32. It is possible not only to store rainwater in this part, but also to combine soil material and the like 30 covering the assembly A for rainwater storage structure with soil and sand. It has a function to prevent dust and other foreign matter from flowing into the rainwater storage structure assembly A. As the filler 32, it is preferable to use a large amount of crushed stone or stone such as stone or the like, but it is sufficient if mainly crushed stone can be used even with crushed concrete.

Furthermore, a pipe-like inlet 33 for letting in rainwater is provided around one of the pits, and a pipe-like outlet 34 capable of discharging the overflowed rainwater is provided for the other. By doing this, it is possible to guide rainwater reliably from the surroundings into the rainwater storage structure assembly A and to be allowed to flow and be stored, and if it overflows, it will be directed from the outlet toward the water outlet etc. Rainwater can be drained and the amount of water stored in the rainwater storage assembly A can be adjusted at all times. In this case, it is not necessary to directly connect the inlet 33 and the outlet 34 to the rainwater storage structure assembly A, so the structure of this portion can be simplified. This is the force where the gap between crushed stones 32 filled in the overfilling section 31 also functions as a rainwater reservoir.

[0104] From the top of the mat material 30 and crushed stone 32 on the rainwater storage structure, cover with soil cover 6 of about 0.5 to 1 lm, adjust the height with the ground, and finish the surface according to the purpose . In this case, one or more inspection holes may be provided at appropriate positions in this rainwater storage structure. Good. By providing such an inspection hole, for example, a convection generating mechanism for convecting rainwater stored in the interior of the rainwater storage structure assembly A can be removably inserted into the inspection hole force, and convection for a predetermined period of time can be performed. By raising the water storage structure assembly A regularly and irregularly, the water storage function can be maintained high at all times.

The water-permeable material for covering the rainwater storage structure assembly A is preferably made of a non-woven fabric or the like, but the covering soil is not particularly limited to this, and the covering of the soil is not limited to this. It should be anything that can not easily get into item A, is flexible, and can withstand heavy loads such as crushed stone.

Another Embodiment

(1) In the case of the above-described embodiment, the force exemplified by polypropylene as the constituent material of the pipe-shaped longitudinal member made of resin is not limited to this, and polyethylene, polyvinyl chloride, PET (polyethylene terephthalate) or the like is used. Various types of thermoplastic resins can be used if the required strength is obtained. Furthermore, as the pipe-like longitudinal member, instead of resin, it may be made of metal pipe such as stainless steel, or concrete may be injected into the interior of the resin pipe-like longitudinal member or reinforced concrete may be inserted. It may be reinforced.

(2) The pipe-like member, the horizontal member, and the connecting jig are made of the same material of resin, but may be made of resin of different materials.

(3) Powdered calcium carbonate (carbum carbonate) or the like may be mixed into the constituent materials of the resin pipe-shaped member, the horizontal member, and the connecting jig. In this way, the specific gravity of the constituent material can be increased, the buoyancy generated when storing rain water can be resisted, and special construction as a countermeasure for buoyancy becomes unnecessary, and even in a small space, larger It is preferable because the amount of stored water can be secured. Specifically, the specific gravity can be made to be 1.0 or more by mixing about 13% of charcoal into the resin.

(4) In the case of mixing into the above-mentioned constituent materials, in place of charcoal, whiskers such as talc and barium sulfate may be mixed. These have a large effect of increasing the aspect ratio and the strength compared with carbon steel. Furthermore, glass fibers may be mixed into the above-mentioned constituent members. Glass fiber is high in strength and dimensional stability, as it only increases the specific gravity of component members. And is preferable. For example, when glass fiber is added at 4.6 wt% (30 parts added to 20 wt% master batch 100), the specific gravity is increased by 0.03, the strength is improved by 15%, and the shrinkage rate at molding is 0.4% Improve.

Industrial applicability

The rainwater storage structure according to the present invention can be used not only as a tank for storing and using rainwater but also as a pyotope or the like.

Claims

The scope of the claims

[1] A plurality of pipe-like longitudinal members having a predetermined length, a transverse member for assembling a three-dimensional structure together with the pipe-like longitudinal members, and a connecting jig for connecting the transverse member to the pipe-like longitudinal member A member for a rainwater storage structure, which is capable of forming a space inside by assembling the pipe-shaped vertical member and the horizontal member into a three-dimensional structure via the connection jig.

[2] The rainwater storage structure member according to claim 1, wherein the connecting jig is fitted and mounted to the pipe-like vertical member, and is engaged with and connected to the horizontal member.

[3] A plurality of pipe-like vertical members having a predetermined length, and a connecting member having a predetermined length and connecting the pipe-like members to assemble them into a three-dimensional structure, the pipe-like members A member for a rainwater storage structure capable of forming a space inside a three-dimensional structure formed of a connecting member.

[4] The rainwater storage structure member according to claim 3, wherein the connecting member is fittable and connectable in at least an end portion of the connecting member in a direction substantially perpendicular to the pipe-like member.

[5] The rainwater storage structural member according to claim 1, wherein the back surface side of the cross member is opened to form a recess, and a longitudinal rib extending in the longitudinal direction is formed to define the recess.

[6] The connection between the horizontal member and the connection jig is made such that the end surface of the horizontal member and the outer peripheral surface of the connection jig face each other, and the end surface of the horizontal member is the circumference of the connection jig. The rainwater storage structure member according to claim 5, wherein the member is connected non-rotatably.

[7] A protrusion or a hole is formed on an end face of the lateral member, and a hole or a protrusion to be fitted to the protrusion or a hole of the lateral member is formed on an outer peripheral portion of the connecting jig. The member for a rainwater storage structure according to claim 5, wherein a plurality of drainage through holes are formed on the upper surface of the member.

[8] The member for a rainwater storage structure according to [5], wherein a short side rib on a short side orthogonal to the longitudinal direction rib is formed in the recess on the back side of the lateral member.

[9] While having a rib formed along the up and down direction on the outer peripheral surface of the pipe-like longitudinal member

The rainwater reservoir according to claim 5, wherein a side panel having a locking portion for locking thereto is attached. Structural members.

[10] A flat shape which is fitted to the uppermost position of the connection member and has a cap member which can smooth this portion and which can be disposed between the pipe-like longitudinal members and on the cross member The member for a rainwater storage structure according to claim 5, which has a panel.

[11] The three-dimensional structure has a compressive strength of at least 10 8 kNZ m ² or more.

The member for rainwater storage structures according to any one of 0.

[12] A water-impervious material laid in the ground recess, and a three-dimensional structure disposed on the upper surface side of the water-impervious material

In the rainwater storage structure having a covering layer disposed on the upper surface side of the three-dimensional structure, the three-dimensional structure comprises a plurality of pipe-like longitudinal members having a predetermined length, and the pipe-like longitudinal members. A horizontal member for assembling the three-dimensional structure together with the vertical members, and a connecting jig for connecting the horizontal members to the pipe-shaped vertical members, and the pipe-shaped vertical members and the horizontal members are A rainwater storage structure characterized by being assembled through a tool.

[13] The rainwater according to claim 12, further comprising a convection generation mechanism for convecting the rainwater stored inside the three-dimensional structure, and a solid collection device capable of collecting the deposited solid. Storage structure.

[14] The pipe-shaped longitudinal member is made of a plurality of resin members having a predetermined length, and is stored inside the three-dimensional structure assembled by the resin pipe-shaped longitudinal members and the cross member. The rainwater storage structure according to claim 13, wherein a plurality of aeration devices for detonating the rainwater are detachably attachable.

[15] A lower recess is formed in the ground recess on the side facing the convection generating mechanism, and the solid material recovery device is capable of discharging the solid material stored in the recess. The stormwater storage structure according to claim 13, which is a bow I device.

[16] The rainwater storage structure according to claim 12, wherein an aeration device for feeding air through the inside of the pipe-like vertical member and detonating the rainwater stored in the three-dimensional structure is attachable.

[17] The pipe-like longitudinal member is made of a plurality of resin members having a predetermined length, and a convection generating mechanism for convecting the rainwater stored inside the three-dimensional structure, and the rainwater is stored. Solids recovery equipment capable of recovering solids accumulated inside a rainwater storage structure The rainwater storage structure according to claim 16, wherein a storage is provided.

[18] A lower recess is formed in the ground recess on the side facing the convection generating mechanism, and the solid material recovery device is capable of discharging the solid material stored in the recess. The rainwater storage structure according to claim 16, which is a bow I device.

[19] The three-dimensional structure is covered with a flexible water-permeable material, and a peripheral end of the water-permeable material covers at least the ground recess around the three-dimensional structure, 13. The three-dimensional structure is pressed and covered with the water-permeable material by placing a filler filling the ground recess around the three-dimensional structure on the upper surface of the water-permeable material. Rainwater storage structure.

[20] The water-permeable material having flexibility is a non-woven or resin-made net material or mat material, a resin-coated net material force selected from one type, and the filling has the three-dimensional structure. The rainwater storage structure according to claim 19, which is a stone filling a ground recess around the body.

[21] A convective generation mechanism for convecting the rainwater stored inside the three-dimensional structure is provided, and a solid recovery device capable of recovering the deposited solid is provided, and further, the three-dimensional structure is further provided. 20. The rainwater storage structure according to claim 19, wherein a plurality of aeration devices for detonating the rainwater stored inside the original structure are detachably attachable.