JP2762042B2 - Drainage device on retaining wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vertically extending hollow downspout provided on the back side of a retaining wall, and connecting the upper and lower ends of the hollow downspout while stacking the retaining wall to drain water from the lowermost drainage hole. The present invention relates to a drainage device for a retaining wall.

[0002]

2. Description of the Related Art Conventionally, retaining walls are usually drained so that water does not accumulate in backfill, thereby preventing hydrostatic pressure from being applied and preventing the generation of a water tank that generates pressure in the front direction. Because it prevents swelling of the viscous soil in the soil and prevents a decrease in soil stability, it is necessary to backfill materials with high permeability such as gravel and crushed stone to collect groundwater. Surface water must also be drained, but the top of the backfill is covered or paved with relatively impermeable soil so that it does not enter the backfill too much.

[0003]

In the conventional retaining wall construction, drainage of the backwater is poor. Even if the backwater is introduced to the drainage hole of the retaining wall, the drainage drains to the outside from the drainage hole of the wall. As a result, not only the wall surface of the retaining wall becomes dirty and the appearance is extremely deteriorated, but also the swelling of the backwater causes damage to the inner surface of the retaining wall due to water pressure and earth pressure.

An object of the present invention is to always clean the wall surface of the retaining wall and to strengthen the retaining wall. Further, the drainage device is easy, and drainage of backwater can be performed through the hollow downspout even in heavy rain. It is an object of the present invention to provide a device that can smoothly flow outside.

[0005]

In order to achieve the above object, in a drainage device for a retaining wall according to the present invention, a hollow downspout is vertically attached to the back (inside) of the retaining wall, and the hollows of the upper and lower retaining walls are hollow. The ends of the downspouts are communicated vertically so that drainage is performed smoothly.

[0006] The position where the hollow downspout is attached differs depending on the shape of the retaining wall. When there is a partition on the retaining wall, the upper and lower ends of the hollow downspout are communicated and stacked on the inner surface of the retaining wall divided by the partition. An inflow port is provided at the lower end inside the hollow downspout, and a corresponding drain port is provided at the lower edge of the outer wall surface.

In addition, by forming a plurality of inlets in the vertical direction on the peripheral surface of the hollow downspout, even if there is an external clogging that easily guides backwater to the downspout, the backwater drainage is not hindered. Less is.

Further, a plurality of hollow vertical gutters having an inflow port are provided in the vertical direction on the inner wall surface of the retaining wall having an L-shaped cross section, and a drain port is provided on an external wall surface corresponding to the hollow vertical gutter.
In the case of arranging in the horizontal direction, an engaging element is provided at the edge of the retaining wall so that the retaining wall continues.

In addition, an inflow port is provided at the upper and lower portions of the hollow vertical gutter, and a drainage port is provided at an outer wall surface. A connecting gutter having a horizontal inflow port is connected to the hollow vertical gutter to form a drainage mechanism.

A plurality of vertical gutters and a retaining wall formed by projecting a horizontal gutter toward the backwater direction from the vertical gutter are stacked in a rectangular retaining wall, and the backwater of the horizontal gutter flows into the vertical gutter for each retaining wall. Water is collected in the drain hole of the bottom retaining wall and discharged to the outside. Therefore, the drainage of the backwater from the drainage port of the upper retaining wall is configured to almost merge with the flow force of the downspout.

[0011]

In the drainage device for the retaining wall constructed as described above, the inner surface of the retaining wall is filled with gravel, crushed stone, concrete, etc., and fixed to the ground, and the hollow downspout attached to the inner surface is vertical. They are stacked and arranged so that they communicate in the direction, and the joints are filled with mortar to prevent the ground from collapsing.

For the above reason, the backwater flows into the hollow downspout via the inlet of the hollow downspout, the horizontal downspout or the connecting downspout, and the backwater is exclusively formed by the downflow of the lower downspout due to the downflow force of the hollow downspout. Drains from drain holes and drains from drains. In this case, there is almost no drainage to the outside from one or a plurality of drain holes of each retaining wall.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 and 2, the retaining wall 1 is formed in an L-shape, and a plurality of partition plates 2 are provided on the inner surface of the retaining wall 1 integrally with the wall surface to define a compartment. Form 3
A hollow vertical gutter 4 is mounted in each of the compartments 3, and an inflow port 5 is formed in an inner surface below the hollow vertical gutter 4 and a drainage port 6 is formed below an outer wall surface.

In the embodiment shown in FIG. 3, a number of inflow ports 5 are formed in the peripheral surface of the hollow downspout 4. Other configurations are the same as those of the embodiment shown in FIGS.

As shown in FIG. 4, the upper edge of the retaining wall 1 and the upper edge of the partition plate 2 are aligned with the lower edge of the retaining wall 1 and the lower edge of the partition plate 2 so that the upper and lower retaining walls are hollow. The downspout 4 is brought into communication and fixed.

In the embodiment shown in FIGS. 5 and 6, one or more hollow downspouts 4 are attached to the inner surface of the L-shaped retaining wall 1, and an inflow port 5 is provided at the lower side of the hollow downspout 4. A drain port 6 corresponding to the inflow port 5 of the hollow downspout 4 is provided on the outer wall surface.

In the embodiment shown in FIG. 7, an upstream / downstream inlet 5 is provided in the hollow downspout 4 so that the connecting downspout 7 between the hollow downspouts 4 communicates in the horizontal direction.

In the embodiment shown in FIG. 8, a plurality of vertical gutters 8 are provided in a rectangular retaining wall 1, and both upper and lower ends are opened, and a horizontal gutter 9 is projected and opened from the side surface of the vertical gutter 8 in the backwater direction. 9, the retaining wall 1 is stacked as shown in FIG. 9, the joints are filled with mortar to form the retaining wall 1 integrally, and the backwater is drained through the horizontal gutter 9 to the bottom drainage hole 10 of the vertical gutter 8. The water is further drained into the drain groove 11.

[0020]

Since the present invention is configured as described above, it has the following effects.

[0021] One or more hollow downspouts are attached to the inner surface of the retaining wall, and one or more inflow ports or a horizontal gutter connected to the inflow port of the downspout is provided on the peripheral surface of the hollow downspout in a backwater direction. And one or more drainage ports communicating with the downspouts are preliminarily opened in the wall and drained from the drainage holes of the lowermost downpipe into the drainage ditch. Since the water does not flood much, there is no moss or dust attached to the wall, and the backwater can be drained smoothly and beautifully.

[Brief description of the drawings]

FIG. 1 is a perspective view as viewed from the back of a retaining wall.

FIG. 2 is a perspective view of the retaining wall as viewed from the front.

FIG. 3 is a perspective view of another embodiment of the retaining wall as viewed from the back.

FIG. 4 is a side view showing a construction state of a retaining wall.

FIG. 5 is a partially cutaway perspective view showing another embodiment of the retaining wall as viewed from the back.

FIG. 6 is a perspective view seen from the front in FIG. 5;

FIG. 7 is a perspective view of another embodiment of the retaining wall as viewed from the back.

FIG. 8 is a perspective view showing an embodiment of a rectangular retaining wall.

FIG. 9 is a vertical sectional view of a construction showing a vertical gutter, a horizontal gutter, and a drainage mechanism of a rectangular retaining wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retaining wall 2 Partition plate 3 Compartment room 4 Hollow vertical gutter 5 Inflow port 6 Drainage port 7 Connecting gutter 8 Vertical gutter 9 Horizontal gutter 10 Drain hole

Claims (3)

(57) [Claims] 1. One or a plurality of hollow vertical gutters 4 are attached to an inner wall surface in a compartment 3 in which an inner surface of a retaining wall 1 is partitioned by a partition plate 2, and one or more hollow vertical gutters 4 are attached to the hollow vertical gutter 4. A plurality of inflow ports 5 or inflow short pipes are provided, and the outside ends of the drainage ports 6 communicating with the hollow vertical gutters 4 are opened outside the inner wall surface, and the upper and lower ends of the hollow vertical gutters 4 of the respective retaining walls 1 are opened. The drainage device on the retaining wall formed by stacking in sequence. 2. A hollow vertical gutter 4 having an inlet 5 is attached to the inner side surface of the retaining wall 1, and a drainage port 6 corresponding to the hollow vertical gutter 4 is formed on the outer wall surface. Is established,
The drainage device according to claim 1, wherein a connecting gutter (7) having an inflow port (5) between the hollow vertical gutters (4) communicates in a lateral direction. 3. A plurality of downspouts 8 are provided in the retaining wall 1, a plurality of downspouts 9 are communicated with the downspouts 8, and backwater flows from the downspouts 9 into the downspouts 8 to form the lowermost section. A drainage device for a retaining wall which is stacked with the retaining wall 1 so that the upper and lower ends of the downspout 8 coincide with each other so that drainage can be performed through the drain hole 10.