WO2018155866A1 - Installation structure of non-buoyant collector well having leakage prevention function - Google Patents

Abstract

The present invention relates to a collector well for treating inflow water, such as rain or underground water, under an underground structure, the installation structure of the collector well comprising: a reinforced concrete mat placed on an earthed ground surface of a collector well installation space; a main body which is placed on the upper surface of the reinforced concrete mat, and both the top and bottom of which are open; a cover placed on top of the main body; an introduction hole formed in a part of the cover; and a grating detachably installed to the introduction hole.

Description

Installation structure of buoyancy sump with leakage prevention function

The present invention relates to a water collecting well for treating inflow water such as groundwater or rainwater under the underground structure, and more specifically, to facilitate construction by preventing the rise of the water collecting well due to groundwater and rainwater during construction of the building, When the construction of is completed, it relates to a water collecting well that functions to drain the groundwater or inflow water flowing into the underground structure.

The collecting well installed at the bottom of the underground structure serves to collect the groundwater and rainwater during the construction of the underground structure and to discharge it to the outside of the work site so that the construction can proceed smoothly, and the water induced after the construction of the underground structure is completed. It acts as an accommodating device until it is discharged with a pump, thereby preventing the inflow of underground water into the interior of the underground structure.

Since the sump is located at the bottom of the underground structure, it is affected by buoyancy and ground force due to groundwater, which may cause a problem of the sump rising up. Therefore, until now, many methods have been applied to increase the structural rigidity mainly in the bottom part where the structural performance of the water collecting well, especially buoyancy and ground force, are largely applied.

However, this method is inconvenient and economical because it is embodied by means of increasing the thickness of the sump itself, installing a rib-shaped reinforcement on the bottom of the sump, or reinforcing with reinforced concrete on the outer surface of the sump. There are disadvantages.

In order to prevent buoyancy from occurring in the sump itself, researches are being conducted. As an example, a basement buoyancy preventing sump installed in a memorial pipe is shown in FIG. 1 as a registration number 20-0329663. In the prior art, to allow the groundwater around the sump (1) to flow into the sump through the perforated tube (2) having a plurality of through holes to reduce the buoyancy generated in the sump by the groundwater.

That is, by allowing water to flow in and out of the sump, the pressure in and out of the sump is kept the same or similar, so that buoyancy does not occur or the degree of the sump is reduced.

 On the other hand, the water generated during the indoor cleaning of the building is also discharged to the outside through the collection basin. Especially, the water flowing through the underground parking lot contains contaminants such as oil, so that the inflow into the underground is It will cause groundwater contamination.

Therefore, to allow water to flow into and out of the sump through the perforated pipe as shown in FIG. 1 has a problem that may become a contamination path such as groundwater during the future use of the building.

The present invention is to solve the above problems of the prior art, the buoyancy does not occur in the sump well does not occur, the water is secured between the inside and outside of the sump is contaminated water in the sump basement It is an object of the present invention to provide an installation structure of a sump well that is prevented from infiltrating into the.

In another aspect, the present invention has a further object to provide an installation structure of the sump well to simplify the structure and to improve the manufacturing and construction properties, economical installation, and to reduce the maintenance cost because the deformation does not easily occur in the member. .

According to the most preferred embodiment of the present invention for solving the above problems, the main body and the upper and lower ends are both placed on the upper surface of the reinforced concrete mat and the reinforced concrete mat placed on the pit soil bottom surface of the water collecting well installation space and An installation structure of a buoyancy collection well having a leakage preventing function, comprising a cover placed on an upper end of the main body, an introduction port formed on a portion of the cover, and a grating installed to be detachably attached to the introduction port. Is provided.

In this case, an elastic or expandable water repellent member may be further installed between the reinforced concrete mat and the main body so as to reliably prevent the water collected in the water collecting well.

In addition, as the most preferred embodiment of the cover, the outer edge is provided on the flat plate portion that extends over the upper end of the main body, the insertion portion protruding to the lower portion of the main body to be fitted inside the upper end of the main body, It consists of a waffle shaped reinforcement part.

In addition, according to another embodiment of the present invention, there is provided an installation structure of a buoyancy collection well having a leak-proof function, so that the height adjustment fitting is installed on the upper end of the main body to adjust the height of the collection well. .

The water collecting well installation structure of the present invention does not have a buoyancy force on the water collecting well to provide a stable water collecting function, and the structure and the installation method are very simple, thereby achieving high economical efficiency with good construction properties.

In addition, the water collecting well installation structure of the present invention is to prevent the soil sediment and groundwater contamination by pollutants generated in the building because the water collected in the water collecting well is prevented from flowing into the ground while preventing buoyancy from acting on the water well as described above. It has the effect of preventing.

1 is a cross-sectional view showing an installation structure of a water collecting well according to the prior art.

2 is a cross-sectional view showing the installation structure of the water collecting well according to an embodiment of the present invention.

3 is an exploded perspective view and cross-sectional view of the water collecting well of the present invention.

Figure 4 is a cross-sectional view showing each embodiment of the order structure between the sump body and the reinforced concrete mat of the present invention.

5 is an exploded perspective view and a cross-sectional view of a sump collecting well according to another embodiment of the present invention.

6 is a cross-sectional view of an example in which a pipe for permanent drainage is installed in a water collecting well of the present invention.

The installation structure of the buoyancy sump according to the present invention relates to a sump for treating inflow water such as groundwater or rainwater under the underground structure, wherein the installation structure of the sump is placed on the bottom surface of the pit of the sump. Reinforced concrete mat, which is placed on the upper surface of the reinforced concrete mat, the upper and lower ends are both open, the cover placed on the upper end of the main body, the introduction port formed on a portion of the cover and detachable to the introduction port It is made of grating which is installed to be possible.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail. However, in describing the present invention, when the technical concept of the present invention is obscured or obscured by describing the known configuration in detail, the description of the known configuration will be omitted.

2 is a cross-sectional view showing the installation structure of the sump well according to an embodiment of the present invention, Figure 3 is an exploded perspective view and cross-sectional view of the sump well (100).

As shown in FIGS. 2 and 3, the water collecting well installation structure of the present invention has an important technical feature that the entire bottom of the water collecting well 100 has an open structure.

That is, the water collecting well 100 applied to the water collecting well installation structure of the present invention includes a main body 110 in which water is stored, a lid 120 placed on an upper end of the main body 110, and the lid 120. Is composed of an introduction port 130 formed in a portion, and the grating 140 is installed to be detachable to the introduction port 130.

The main body 110 has a structure in which the upper and lower ends penetrate each other as well as the lower end as described above.

The main body 110 of the water collecting well 100 is placed on the upper surface of the reinforced concrete mat 200 which is placed on the pit soil bottom surface of the water collecting well installation space S to collect water flowing into the workplace or building such as groundwater. It forms a catchment space (W) to be discharged through the pipeline.

As described above, the water collecting well 100 according to the present invention has a structure in which the lower end is opened, and even though groundwater is introduced into the water collecting well installation space S, the groundwater level is not affected by buoyancy during construction.

The body 110 of the water collecting well 100 is limited to the material as long as it can press the order member 152 with its own weight to allow the order member 152 to have watertightness as described below. It is not necessary, and preferably a concrete material such as a fume pipe or a PC concrete pipe, but may be composed of a synthetic resin such as steel or FRP.

In particular, fume pipes or PC concrete pipes can be made of ready-made products, which makes it possible to have an economical catchment installation structure.

In addition, although the cross section of the water collecting well 100 main body 110 may be circular as shown in FIG. 3, it may be configured as a cross section of various polygons such as a rectangular cross section as in the embodiment of FIG. 5. 5 is an exploded perspective view and each cross-sectional view of the sump well 100 having a cross section of a square section.

At the top of the sump 100, the main body 110 may be provided with an inflow groove 111 through which water flows into a fume pipe protruding into the upper portion of the reinforced concrete, and a part of the side wall of the main body 110 may include a pipe for permanent drainage. Pipe insertion hole 112 for the installation may be further provided. In addition, although not shown, by providing a temporary inlet groove of the same shape as the inlet groove 111 provided at the upper end of the water collecting well 100, the main body 110, the upper surface of the reinforced concrete mat 200 that may occur during construction Water can flow into the fume tube. Such temporary inlet grooves are filled by index materials after construction is completed.

6 is a cross-sectional view of an example in which the pipe 112a for the permanent drainage facility is installed using the pipe insertion hole 112. Reference numeral 112b is a pipe connector, 112c is a watertight member for preventing leakage.

At present, the concrete strength of the discarded concrete 300 at the construction site is using more than 180㎏ / ㎠ (18MPa).

Since the reinforced concrete mat 200 is installed on the upper surface of the discarded concrete 300 poured over the entire bottom surface pitted for the sump installation space S, the reinforced concrete composed of the discarded concrete 300 and the upper reinforcement is It serves as a bottom plate for the body 110 of the sump 100.

Therefore, the water collecting member 152 may be further installed between the reinforced concrete mat 200 and the main body 110 of the water collecting well 100 so that the water collected in the water collecting well 100 is not leaked to the outside.

Reinforced concrete mat 200 may be constructed with the same strength when placing the discarded concrete 300 in consideration of workability.

The order member 152 does not need to specifically limit its configuration and material as long as it can prevent leakage between the reinforced concrete mat 200 and the main body 110, most preferably an elastic material such as rubber or It is composed of a material having expandability.

The order member 152 has a watertightness between the reinforced concrete mat 200 and the main body 110 only by the load of the water collecting well 100, thus making the installation of the water collecting well 100 very easy.

In this case, the installation groove 151 for easily installing the elastic or expandable order member 152 may be further installed in at least one of the lower ends of the reinforced concrete mat 200 and the sump well 100 body 110. have.

For example, as shown in Figure 4 (a) is provided with an installation groove 151 at the lower end of the main body 110, the order member 152 is inserted into the installation groove 151 so as to protrude, or installed in Figure 4 As shown in (b) of the reinforced concrete mat 200 of the upper surface of the main body 110 is provided with an installation groove 151, the order member 152 a part of the installation groove 151 protrudes Insertion may be installed as possible, as shown in (c) of FIG. 4, provided with an installation groove 151 on both the lower body and the upper surface of the reinforced concrete mat 200 of the sump 100, any one of The order member 152 may be inserted into a portion to protrude.

However, in the case of using the order member 152 having the order function without the installation groove 151, the configuration of the installation groove 151 as described above can be omitted. That is, at this time, the lower end of the main body 100 and the upper surface of the reinforced concrete mat 200 does not put the mounting groove 151 anywhere, the order member 152 is installed where they are in contact with each other.

As such, the water collecting well installation structure of the present invention in which the water collecting space W is formed through the water collecting member 152 collects groundwater or rainwater that permeates into the working space without floating due to buoyancy during construction of the building, and discharges it to the outside to dry work. In addition, it prevents the contamination of groundwater by collecting the polluted water so that it does not penetrate into the ground during the use of the building to be discharged to the outside through the pipeline.

The cover 120 is placed on the upper end of the main body 110 of the water collecting well 100 which is placed on the reinforced concrete mat 200 by its own weight.

The cover 120 is installed to be detachable from the main body 110 for the maintenance of the installation of the pump or cleaning the inside of the sump 100, the plate portion 121 and the insertion portion 122 and reinforcement It consists of a part 123.

The flat plate 121 is to close the open portion of the upper portion of the main body 110, the outer edge is formed to match or longer than the outer edge of the main body 110 so that the outer border 121a is to be over the top of the main body 110 It is configured to be.

Insertion portion 122 is formed to protrude in the lower portion of the flat plate 121 so that the cover 120 is fixed to the main body 110 while being fitted inside the upper end of the main body 110, the outer edge of the main body 110 It is preferable that the cover 120 does not move from side to side in accordance with the inner edge of the).

The reinforcement part 123 may be provided on the upper surface of the plate part 121 and may be variously implemented to prevent the plate part 121 from being deformed by an external impact. However, the reinforcement parts 123a are most preferably provided. ) Is orthogonal to the waffle shape.

In this case, the reinforcing force 123a is preferably configured to extend to the outer edge 121a of the flat plate 121. This prevents the outer edge 121a from being sheared by the reaction force at the top of the main body 110 when the vertical load acts on the cover 120.

In addition, the flat plate 121 of the cover 120 may be provided with a circular opening (not shown) that can be opened if necessary to facilitate the positioning and pipe installation of the pipe.

Although the cover 120 may be made of steel, it is preferable that the cover 120 is made of lightweight PE or FRP to facilitate detachment for maintenance. In addition, the cover 120 may be manufactured in a single body, but may be configured in such a manner that a plurality of separately manufactured units are assembled.

A portion of the cover 120 is provided with an introduction port 130 to allow water to flow into the body 110, the introduction port 130 has a grating 140 having a grid-like space It is installed to be detachable.

To this end, barrier ribs 131 for restricting the front, rear, left, and right movements of the grating 140 are installed at each edge of the introduction port 130, and a gripping jaw (Grating 140 is placed inside the partition 131). 132 is installed.

The material of the grating 140 also need not be particularly limited, and may be made of steel or synthetic resin such as PE and FRP, and may be different from the material of the cover 120.

On the other hand, the top surface of the sump (100) cover 120 is the top of the floor concrete layer 400 of the building Or it is matched with the middle portion of the rootless concrete 410, as described above, when using a fume pipe of the ready-made product for the purpose of economical efficiency, it is necessary to adjust the height of the sump (100) due to the site or construction conditions Will be.

To this end, the water collecting well installation structure of the present invention may be further provided with a height adjusting fitting member 160 between the top and the cover 120 of the main body 110.

The height-adjusting fitting member 160 has the same cross section as the cross section of the main body 110 and is fixedly installed by being inserted into the insertion part 122 of the cover 120 together with the upper end of the main body 110. Alternatively, the height can be adjusted by installing at three or more points as a part material, and the empty part may be filled with rootless concrete 410.

A plurality of such height adjustment fitting member 160 may be installed, and may be further provided with a member that can be ordered between each of the height adjustment fitting member 160 and between the upper end of the body 110.

The present invention has been described in detail above with reference to specific embodiments, but the above embodiments are merely examples for easy understanding of the present invention, so that those skilled in the art have the scope of the technical idea of the present invention. It will be apparent that various modifications can be made within the scope of the invention. Therefore, such modifications will be described within the scope of the present invention as described in the claims.

The present invention relates to a water collecting well for treating inflow water such as groundwater or rainwater under the underground structure, and more specifically, to facilitate construction by preventing the rise of the water collecting well due to groundwater and rainwater during construction of the building, When the construction of is completed, it is related to the water collecting well that functions as a drainage function for groundwater or inflow water flowing into the underground structure.

Claims (5)

1. Reinforced concrete mat 200 is placed on the pit soil bottom surface of the water collecting well installation space (S), the main body 110, both the upper and lower ends are opened as the upper surface of the reinforced concrete mat 200, and the main body 110 Cover 120 is placed on the top of the), the introduction port 130 formed in a portion of the cover 120, and the grating 140 is installed to be detachable to the introduction port 130, the An installation structure of a buoyancy collection well having a water leakage preventing function, characterized in that an elastic or expandable water repellent member 152 is installed between the reinforced concrete mat 200 and the main body 110.
2. According to claim 1, The cover 120, the outer edge (121a) is a flat plate portion 121 is formed over the upper end of the main body 110, and protruding to the lower portion of the flat plate portion 121 main body 110 The installation structure of the buoyancy collection well having a leak-proof function, characterized in that the insertion portion 122 is inserted into the upper end of the upper portion, and the reinforcement portion 123 provided on the upper surface of the flat plate 121.
3. According to claim 2, wherein the reinforcement portion 123 has a plurality of reinforcement ribs 123a orthogonal to have a waffle shape, the reinforcement ribs 123a is extended to the outer edge 121a of the flat plate 121 The installation structure of the buoyancy collection basin with a leak-proof function, characterized in that there is.
4. According to claim 1, wherein at least one of the lower portion of the reinforced concrete mat 200 and the main body 110 is provided with an installation groove 151, the order member 152 is a part of the installation groove 151 An installation structure of a buoyancy collection well having a leakage preventing function, characterized in that the insertion is installed so as to protrude.
5. The structure of any one of claims 1 to 4, wherein the height adjustment fitting member (160) is installed at the upper end of the main body (110).

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