JP2001182140A - Draining structure of drainable pavement road face - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a draining structure from a drainable pavement road face to a side ditch and save labor of works in a construction site to reduce the construction cost. SOLUTION: When a main body 3 for forming a side ditch S is molded by a metal mold, a support frame 4 for a ditch cover 5 is inserted in the main body 3 and fixed thereto. A support body 11 formed of round pipes is welded to the support frame 4. A draining body 10 is constituted of the support body 11 and a water channel 12 made of a round pipe having a group of water holes 14 at the outer peripheral wall. After the main body 3 is installed and a binder course 1 of a pavement road face R is formed, the water channel 12 is inserted in the support body 11 and most part of the water channel 12 is projected on the binder course 1. A pervious surface course 2 is formed on the binder course 1 and the water channel 12 is buried in the inside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a drainable pavement road surface, and drains rainwater or the like that penetrates from a water-permeable surface layer and flows down along a water-impermeable base layer into a gutter or a drainage basin. For drainage structure for.

[0002]

2. Description of the Related Art As this type of drainage structure, there is a drainage structure using a metal receiving frame for receiving a gutter of a gutter, a lid of a drainage basin, or the like (Japanese Patent Laid-Open No. 10-37286). There, the receiving frame is buried flush with the surface layer, and a group of drainage holes are passed through the base corner of the standing wall of the receiving frame adjacent to the surface layer, and the drainage hole is cut on the road surface around the groove lid and mash lid. To prevent water from stagnating. In Japanese Patent Application Laid-Open No. 10-183728, a water collector having a U-shaped cross section that opens downward along a curb having an L-shaped cross section is buried flush with the surface layer, and rainwater or the like that has flowed into the water body is curb stone. Alternatively, water is drained through oblique drain holes provided in the side grooves. The water collecting body is formed of a metal frame, and a large number of water holes are provided on the top and side surfaces thereof.

[0003]

A receiving frame for a groove cover or a box cover is integrated with a gutter at the time of casting a gutter or the like on site, or when forming a gutter block using a molding die. There are times when you do. In many cases, in order to shorten the construction period, preformed gutter blocks and gusset blocks are carried to the construction site, and these existing blocks are assembled to construct gutters and drainage pits. As described above, when constructing a gutter or the like by casting in-situ, as well as using an existing block, how to construct the above-mentioned drainage structure with a small amount of labor becomes a problem.

In the case where the above-mentioned receiving frame is buried flush with the surface layer, rainwater cannot be discharged until the rainwater flowing down along the base layer reaches the receiving frame. Therefore, when there is a large amount of precipitation, water is easily generated on the surface layer, and slips and the like are easily generated. In the case where the water catchment is buried along the curb, it is necessary to bolt the water catch to the curb at the construction site or integrate it with the curb by pouring mortar, etc. Hang on. Since the water collecting body of the same length as the setting distance of the curb is buried, there is a disadvantage that the total cost of the drainage structure is high. Since the upper wall of the receiving frame is exposed on the road surface, it is slippery and there is a problem in safety. Since a group of water holes and drain holes are provided in the receiving frame and the water collecting body, respectively, there is a disadvantage that the load bearing capacity of the receiving frame and the water collecting body is reduced by that much.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drainage structure suitable for drainable pavement roads which can quickly drain rainwater that has permeated the surface layer, has a simple structure and can reduce the labor required for construction, and thus can reduce the construction cost of a drainage structure. It is to provide a structure. Another object of the present invention is to provide a highly safe drainage structure that can bury the entire drainage structure in a surface layer or a drainage facility, and thus can prevent slippage or the like caused by the drainage facility. Another object of the present invention is to integrally form a receiving frame and a drainage channel on a pre-made block, so that a drainage structure can be easily constructed at a construction site with less labor, and its component parts can be formed at low cost. To be able to do it.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a drainage structure applied to a drainage facility S provided on a drainage pavement road surface R. As shown in FIGS. 1 and 2, the drainage equipment S includes a concrete main body 3, a metal receiving frame 4 integrally fixed to the main body 3 via anchor bolts 6, and fitted into the receiving frame 4. And a lid 5 to be loaded.
The receiving frame 4 is arranged so that its upper end surface is flush with the surface of the surface layer 2 of the pavement road surface R. A drainage passage formed in a receiving frame 4 on the road surface side in a state where a drainage conductor 10 for guiding rainwater or the like that has permeated into the surface layer 2 to flow down to a drainage channel 7 in the drainage facility projects toward the center of the road surface. 13 on the outer surface. The drain conductor 10 has a group of water passage openings 14 opened in the peripheral wall.
It includes a water guide 12 made of a hollow metal body made of a pipe or a shape, at least a part of which is embedded in the surface layer 2.

More specifically, a receiving frame 4 and a receiving wall 3 in contact with a side edge of the surface layer 2 are provided at the upper end of the main body 3 made of a pre-made block.
and a are arranged adjacent to each other inside and outside. Drainage conductor 10
Is composed of a support 11 fixed to the receiving frame 4 on the road surface side and penetrating through the receiving wall 3a inside and outside, and a water guide 12 loaded into the support 11 when the surface layer 2 is laid and embedded in the surface layer 2. I do.

At the construction site, in the main body 3 formed by casting concrete, a receiving frame 4 is fixedly mounted integrally with the main body 3 on the upper end thereof. The drainage conductor 10 is fixed to the upright wall 4b of the receiving frame 4 in contact with the side edge of the surface layer 2.

As shown in FIG. 3, a drainage system S in another drainage structure according to the present invention includes a main body portion 3 made of a concrete pre-made block, a metal receiving frame 4 fixed to an upper portion of the main body portion 3, and , Lid 5 fitted and loaded in receiving frame 4
And Main body 3 in contact with side edge of surface layer 2 of pavement road surface R
A drain conductor 10 that guides rainwater or the like that has permeated into the surface layer 2 to the drain channel 7 is fixed to the lower surface of the receiving frame 4 between the outer surface of the main body 3 and the inner surface of the main body 3 in a state of projecting toward the center of the road surface. I do.

The drain conductor 10 is fixed to the receiving frame 4 and buried in the wall of the main body 3.
And a water guide 12 buried in the surface layer 2 when the support 11 is laid.

[0011]

The drainage conductor 10 formed of, for example, a pipe is fixed to the receiving frame 4 in advance, and the receiving frame 4 in that state is fixed.
Are integrally fixed to the concrete body 3 via the anchor bolts 6, so that when the drainage structure is constructed at the construction site, the receiving frame 4 and the drainage conductor 10 are connected to the main body 3 and the base layer 1.
It is not necessary to fix to the like, and the labor of construction can be saved by that much. The rainwater that has penetrated into the surface layer 2 flows down along the gradient of the base layer 1, but the rainwater is quickly discharged to the drainage channel 7 through the water guide 12 protruding toward the center of the road. Even if the amount is large, it is possible to prevent the water from staying on the surface layer 2 well. Further, a part of the rainwater is dammed by the receiving frame 4, but the damped rainwater flows along the receiving frame 4 and flows down to the drainage channel 7 through the nearest drainage conductor 10. In this way, water is collected in the receiving frame 4 and the receiving frame 4
When drainage is performed through drainage conductors 10 provided at appropriate intervals along the line, it is only necessary to add the drainage conductors 10 as drainage parts, so that it is possible to save labor of construction as described above. Therefore, the drainage structure can be constructed at low cost as a whole. Since the entire drainage structure is buried in the surface layer 2 and the main body 3, slips and the like due to the drainage structure can be prevented, and the safety can be improved accordingly. Compared with a conventional drainage structure in which a group of drain holes are provided in the receiving frame 4 itself, the load resistance of the receiving frame 4 is not significantly reduced. It is also advantageous in that the drainage capacity of the drainage conductor 10 can be increased or decreased by properly using the water guides 12 having different lengths.

In the case where the drainage equipment S is constructed by the main body 3 composed of a pre-made block, the receiving frame 4 is formed when the main body 3 is formed.
Are fixed together. Further, the drain conductor 10 is connected to the support 11.
And the water guide 12, and the support 11 is fixed to the main body 3 together with the receiving frame 4. In this case, the existing block manufacturing mold can be used as it is. Before the surface layer 2 is formed, the water guide 12 is inserted and loaded into the support 11, and a part of the water guide 12 is projected to the lamination region of the surface layer 2. Support 1
1 is desirably fixed to the receiving frame 4 in advance, for example, welded. As described above, when the drain conductor 10 is configured by the support 11 and the water guide 12, the drain conductor 10 can be formed by simply inserting and inserting the water guide 12 into the support 11 when constructing a drain structure. Therefore, the labor of construction can be saved. Since the support 11 is embedded in the wall of the receiving wall 3a, it also functions as a reinforcing material for the receiving wall 3a.

As shown in FIG. 4, when casting the concrete at the construction site to form the main body 3, the drain conductor 10 is fixed to the receiving frame 4 in advance, and the receiving frame 4 in that state is attached to the main body 3. Is integrated with the main body 3 via an anchor bolt 6 at the upper end of the main body.

As shown in FIG. 3, a drain conductor 10 for guiding rainwater or the like to flow down is provided in a wall between the outer surface of the main body 3 in contact with the side edge of the surface layer 2 and the inner surface of the main body 3. Conductor 10
Since the drainage structure 13 is fixed to the lower surface of the receiving frame 4, it is not necessary to provide the drainage opening 13 in the receiving frame 4, so that the processing time can be saved by that much and the drainage structure can be configured at low cost. Even when the receiving wall 3a of the main body 3 is omitted and the upright wall 4b of the receiving frame 4 is in contact with the side edge of the surface layer 2, the drain conductor 10 can be provided without any trouble.

If the drain conductor 10 is composed of a support 11 fixed to the receiving frame 4 and a water guide 12 buried in the surface layer 2, the water guide 12 is attached to the support 1 before the surface layer 2 is laid.
The drainage structure can be formed simply by inserting the drainage structure into a single unit, and the construction of the drainage structure can be omitted as compared with the conventional drainage structure.

[0016]

(First Embodiment) FIGS. 1 and 2 show a first embodiment of a drainage structure according to the present invention. In FIG. 2, reference symbol R denotes a drainable pavement surface applied to a highway or the like, and S denotes a gutter (drainage facility) constructed along the shoulder of the road surface. The pavement road surface R is composed of a base layer 1 that does not allow water to pass through, and a surface layer 2 that is laid on the base layer 1 and allows water to pass therethrough. The base layer 1 and the surface layer 2 are each formed so as to have a downward gradient from the center of the road surface toward the shoulder of the road. The base layer 1 is formed by applying asphalt pavement or concrete pavement on the roadbed, and the surface layer 2 is formed by applying permeable asphalt pavement or permeable concrete pavement having continuous voids.

The side groove S includes a main body 3 made of an existing concrete block, a receiving frame 4 provided at an upper end of the main body 3,
A groove cover (lid) 5 which is fitted and loaded in the receiving frame 4. The main body 3 is formed of a block having a U-shaped cross section, and is manufactured at a factory using a molding die.

In FIG. 1, the receiving frame 4 comprises a steel frame having an L-shaped cross section having a seat wall 4a and an upright wall 4b which are bent orthogonally, and anchor bolts 6 are welded to the lower end of the upright wall 4b at several locations in the longitudinal direction. I do. Further, a support 11 to be described later is welded to the standing wall 4b at several points in the longitudinal direction in a state perpendicular to the standing wall 4b.

The rainwater that has fallen on the pavement road surface R during rainy weather permeates the surface layer 2, is received by the base layer 1, and flows down toward the gutter S. In order to discharge the flowing water to the drainage channel 7 in the side groove S without interruption, drainage conductors 10 are provided at regular intervals along the longitudinal direction of the receiving frame 4 so as to protrude toward the center of the road. The drain conductor 10 includes a support 11 fixed to the receiving frame 4 and a water guide 12 mounted on the support 11 and protruding outward from the receiving wall 3 a of the main body 3 in contact with the side edge of the surface layer 2. It consists of. The support 11 is formed by cutting a steel pipe having a circular cross section into the same length as the thickness of the receiving wall 3a, and penetrates the receiving wall 3a in and out. A small-diameter drainage port 13 is provided in the standing wall 4b facing the support 11 so as to communicate with the inner bottom surface of the support 11. The water guide 12 is made of a steel pipe having an outer diameter slightly smaller than the inner diameter of the support 11, and a number of water inlets 14 are provided in a peripheral wall thereof. According to the water guide body 12 formed by drilling a group of water holes 14 formed of round holes in the peripheral wall of the existing steel pipe as described above, for example, the plate material from which the water holes 14 are punched is bent into a tube shape. The water guide 12 can be formed at a lower cost than when the water guide 12 is formed.

The groove cover 5 is placed in a square base frame 5a.
Strength frames 5b having an I-shaped cross section are arranged at regular intervals, and both ends thereof are welded to a base frame 5a. The width dimension of the groove lid 5 is set smaller than the facing dimension of the upright wall 4b in the pair of left and right receiving frames 4, so that the groove lid 5 can be easily fitted simply by dropping it into the receiving frame 4.

The gutter S, the pavement road surface R, and the drainage structure
Build according to the following procedure. After the groove for burying the main body 3 is cut and the roadbed is maintained, the main body 3 is installed and positioned in the groove. The base layer 1 is formed in this state. At this time, the surface of the base layer 1 is flush with the inner bottom of the opening surface of the support 11 fixed to the receiving frame 4, but slightly lower.
After forming the base layer 1, the main body 3 may be installed. Next, the water guide 12 is inserted and loaded into the support 11 from the side of the road surface, most of which is exposed on the base layer 1 and protrudes toward the center of the road surface. In this state, the surface layer 2 is formed, and the exposed portion of the water guide 12 is embedded in the surface layer 2. Finally, the groove cover 5 is fitted into the receiving frame 4 to complete the side groove.

As described above, according to the drainage structure of this embodiment, after the main body 3 is installed, the water guide 12 is moved to the support 11.
The drainage conductor 10 can be formed only by inserting the drainage structure into the drainage structure. A part of the rainwater flowing along the base layer 1 flows into the water guide 12 from the opening at the protruding end of the water guide 12 or the water inlet 14 provided on the peripheral wall thereof.
The water flows into the receiving frame 4 through the drainage port 13 provided in the receiving frame 4, and eventually flows down to the drainage channel 7. Part of the rainwater that has permeated the surface layer 2 is dammed by the receiving wall 3a of the main body 3 at the lower end of the gradient of the base layer 1, flows along the receiving wall 3a, and reaches the nearest water guide 12, The water flows from the drainage port 13 into the water guide 12 and is drained to the drainage channel 7 as described above.

(Second Embodiment) FIG. 3 shows a second embodiment of the drainage structure according to the present invention. The difference is that the drainage conductor 10 is integrally arranged on the lower surface of the receiving frame 4 as compared with the drainage structure of the first embodiment. Specifically, when the support 11 is welded to the lower surface of the receiving frame 4 to form the main body 3 made of an existing concrete block, the anchor bolts 6 and the support 11 are embedded in the wall of the main body 3. One end of the support 11 is open on the outer surface of the receiving wall 3 a in contact with the side edge of the surface layer 2, and the other end is open on the inner surface of the main body 3. The drain conductor 10 includes a support 11 and a water guide 12 supported when the surface layer 2 is laid, and most of the water guide 12 is formed on the surface layer 2.
Buried inside. A water guide 12 is provided on the inner surface of the pipe of the support 11.
Is provided in advance to define the insertion limit. Other parts are the same as those of the first embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted. The same applies to the following embodiments and the like.

As described above, when the support 11 is welded to the lower surface of the receiving frame 4, there is no need to provide the drainage opening 13 in the receiving frame 4, so that the processing time can be saved by that much. Even when the main body 3 is formed without the receiving wall 3a, the drain conductor 10 can be provided without any trouble.
The drain conductor 10 can be formed only by the water guide 12 by welding the water guide 12 to the lower surface of the receiving frame 4. In this case, it is sufficient to form the water passage 14 only in the peripheral wall portion of the water guide 12 buried in the surface layer 2.

(Third Embodiment) FIG. 4 shows a main body 3 of a side groove S.
Shows a third embodiment of a drainage structure in the case where ready-mixed concrete is poured into a formwork assembled at a construction site. There, the base layer 1 on the roadbed is formed after the grooves for the side grooves are cut. Next, a mold for forming the main body 3 is assembled in the cut groove. The receiving frame 4 is formed in the same manner as in the first embodiment, and is fixed to the mold. Drain conductor 1 in this case
Numeral 0 is formed only of the water guide 12 in the first embodiment, and one end thereof is welded and fixed to the upright wall 4b of the receiving frame 4. The base layer 1 at this time is formed so that the surface thereof is flush with the lower surface of the drain conductor 10. Finally, the surface layer 2 is formed on the base layer 1, and the drain conductor 10 is embedded in the surface layer 2.

As described above, when the main body 3 is formed by casting concrete at the construction site, it is only necessary to assemble the receiving frame 4 in which the drainage conductor 10 is integrated into a mold, and then pour the concrete. A drainage structure can be formed. In other words,
Since the drainage structure is formed integrally with the receiving frame 4, the labor for forming the drainage structure at the construction site can be saved. In addition, the water guide 12 can be press-fitted or fixed to the standing wall 4b. If necessary, it may be screwed and fixed.

As shown in FIGS. 5A and 5B, the drain conductor 12 can be formed of a hollow metal body such as a square pipe or a downwardly-opening U-shaped cross section. of course,
The cross-sectional shape may be a polygonal shape other than a circle or a quadrangle, an ellipse, or an irregular cross-sectional shape such as a convex shape.

(Fourth Embodiment) FIG. 6 shows a fourth embodiment in which the present invention is applied to an interlocking pavement road surface. The surface layer 2 includes a base layer 2 a having water permeability formed on the base layer 1 and a surface layer block 2 laid on the upper surface of the base layer 2 a.
b, and the water guide 12 provided in the receiving frame 4 was embedded between the surface layer block 2 b and the base layer 1. The surface layer block 2b is made of a porous concrete block having continuous voids, and quickly penetrates rainwater falling on the road surface,
Water on the road surface can be prevented. The surface block 2b may be formed of a brick having continuous voids or an asphalt block.

In each of the above embodiments, the case where the drainage equipment S is a gutter has been described. However, the drainage structure of the present invention is equally applicable to a drainage basin (drainage equipment) provided at regular intervals along the road surface. Applicable. In this case, the main body portion 3 of the drainage basin may be an existing block, or may be formed integrally with the base layer 1 by casting concrete on site as in the third embodiment. In addition, the box cover (cover) corresponds to a groove cover in the side groove. In addition to the above, when a curb is fitted into the receiving frame 4 of the side groove S, the curb means a lid body referred to in the present invention.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a drainage structure.

FIG. 2 is a sectional view of a drainable pavement road surface of the first embodiment.

FIG. 3 is a sectional view showing a second embodiment of the drainage structure.

FIG. 4 is a sectional view showing a third embodiment of the drainage structure.

FIG. 5 is a perspective view showing a modification of the water guide.

FIG. 6 is a sectional view showing a fourth embodiment of a drainable pavement road surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base layer 2 Surface layer 3 Main part 4 Receiving frame 5 Lid 6 Anchor bolt 7 Drainage channel 10 Drainage conductor 11 Support 12 Water channel 13 Drainage port 14 Water flow port R Pavement road surface S Drainage equipment

Claims (5)

[Claims] 1. A drainage structure applied to a drainage facility S provided on a drainage pavement road surface R, wherein the drainage facility S includes a concrete main body 3 and a main body 3
A metal receiving frame 4 fixed integrally with the receiving frame 4 via an anchor bolt 6, and a lid 5 fitted and loaded into the receiving frame 4, the receiving frame 4 having an upper end surface formed on the surface layer 2 of the pavement road surface R. A drain conductor 10 that is arranged so as to be flush with the surface and guides rainwater or the like that has permeated into the surface layer 2 to the drain channel 7 in the drain facility S projects in the center of the road surface. Drainage port 13 provided in receiving frame 4 on the road surface side
The drain conductor 10 is formed of a hollow metal pipe made of a pipe or a shape, and has a group of water inlets 14 formed in the peripheral wall.
And a drainage structure of a drainable pavement surface at least a part of which is buried in the surface layer 2. 2. A receiving frame 4 and a receiving wall 3a in contact with a side edge of the surface layer 2 are arranged at the upper end of a main body 3 made of a pre-made block in a state of being adjacent to the inside and outside. Fixed to the receiving frame 4 on the side
a and a water guide 12 which is loaded on the support 11 when the surface layer 2 is laid and is embedded in the surface layer 2.
The drainage structure for a drainable pavement road surface according to claim 1, comprising: 3. A receiving frame 4 is fixedly integrated with the main body 3 at an upper end of a main body 3 formed by casting concrete at a construction site, and an upright wall of the receiving frame 4 in contact with a side edge of the surface layer 2. 4b, drainage conductor 1
2. The drainage structure for a drainable pavement road according to claim 1, wherein 0 is fixed. 4. A drainage structure applied to a drainage facility S provided on a shoulder of a pavement road surface R having a drainage property, wherein the drainage facility S includes a main body 3 made of a pre-made concrete block, An outer surface of the main body portion 3 including a metal receiving frame 4 fixed to the upper portion and a lid 5 fitted and loaded into the receiving frame 4, and in contact with a side edge of the surface layer 2 of the pavement road surface R;
A drain conductor 10 that guides rainwater or the like that has permeated into the surface layer 2 to the drain channel 7 is fixed to the lower surface of the receiving frame 4 between the inner surface of the main body 3 and the drain frame 10 so as to protrude toward the center of the road surface. The drain conductor 10 is a hollow water-conducting body 12 made of a tubular material or a shape having a group of water passage openings 14 formed in the peripheral wall.
And a drainage structure of a drainable pavement surface at least a part of which is buried in the surface layer 2. 5. A support 11 fixed to the receiving frame 4 and embedded in the wall of the main body 3 and a drain conductor 10 is loaded on the support 11 when the surface layer 2 is laid and embedded in the surface layer 2. The drainage structure for a drainable pavement road surface according to claim 4, wherein the drainage structure is constituted by a water guide body 12 to be formed.