JPH0333788Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention is a system that is buried in slopes, etc., to efficiently and permanently collect water and water in the soil or on the ground surface (ground surface and areas close to the ground surface). The present invention relates to an earth retaining fence body used for constructing an earth retaining fence that is resistant to earth pressure and has a semi-permanent function.

(Prior art) The present applicant has filed Utility Application No. 51-10104 and U.S. Pat.
-77421 discloses an earth retaining fence that can efficiently collect and drain water underground (inside the slope), is resistant to earth pressure, and has a semi-permanent function.
The earth retaining fence body a disclosed in the former (Utility Model Application No. 51-10104) is formed by combining and integrating a fence plate part b and gutter parts c, d, and d, as shown in FIG. The gutter part c located at is formed so as to be bent toward the foot of the slope. On the other hand, the latter (Jitsugan No. 60-77421)
As shown in FIG. 8, the earth retaining fence e disclosed by E.P. et al. has a shelf fence constructed in substantially the same manner as the former, and a fitting portion that opens on the shoulder side and is provided at the upper end of the fence f. L having a fitting part h that can fit with g
It is composed of a letter-shaped gutter part i.

(Problem to be solved by the invention) However, in the former earth retaining fence a, the gutter c located at the top step was formed so as to be bent toward the foot of the slope. c, it was almost impossible to collect and drain even the percolated portion of surface water (percolated water near the slope surface), which caused problems in terms of slope protection. On the other hand, in the case of the latter earth retention fence e, it is possible to collect and drain surface water through the L-shaped gutter part i, so it can be said that the problem with the former has been solved for the time being. , Sediment is deposited in the L-shaped gutter part i due to the sediment flow flowing down the slope during rainfall, and the L-shaped gutter part i loses its original function, causing surface water to flow into the L-shaped gutter part. There was a problem that the slope surface was eroded by the mud flowing down over the earth's surface, and there was an inconvenience in which the maintenance of the earth retaining fence had to be carefully maintained, and there was room for improvement.

The present invention provides an earth retaining fence body that solves the above-mentioned problems by having a surface water gutter section on the top level that efficiently and permanently collects and drains surface water and seepage water near the ground surface. This is the purpose.

(Means for Solving the Problems) The earth retaining fence body 1 according to the present invention has the lower end of the plate-shaped fence plate part 5 bent into a cylindrical shape on the front side, and the tip and the fence plate part 5 are bent into a cylindrical shape. Inflow gap g1 between
By providing the upper and lower fence bodies 2, 2, which are integrally formed with the fence plate part 5 and the gutter part 6 that functions as a waterway, the lower gutter part is on the lower side of the upper gutter part. Place the upper edge of the lower fence plate on the outer surface of the upper gutter 1.
1, and by bending the upper end of the uppermost fence plate part into a cylindrical shape on the front side and providing an inflow gap g2 between the tip and the fence plate part. It is characterized in that the fence plate part 5 and the uppermost surface water gutter part 3 which functions as a waterway are integrally formed, and can be used, for example, to construct an earth retaining fence on a slope. Ru.

(Example) Examples of the present invention will be described below based on the drawings.

First Embodiment In FIGS. 1 and 2, the earth retaining fence 1 of the present invention is as follows:
A system that integrates a plurality of fence bodies 2 and a surface water gutter section 3,
For example, it is an extrusion molded body made of synthetic resin, and to explain it specifically, it is arranged from top to bottom.
The upper fence body 2A, the intermediate fence bodies (in this embodiment, a plurality of fence bodies) 2B, and the lower fence body 2C are connected and integrated, and the upper fence body 2A is provided with a gutter section 3 for surface water.

The upper fence body 2A, the intermediate fence body 2B, and the lower fence body 2C
The lower end of the plate-shaped fence plate part 5 is bent into a cylindrical shape on the front side (in this embodiment, the slope shoulder 4 side), and an upper opening is formed between the tip and the fence plate part 5. They are common in that the fence plate portion 5 and the upper opening cylindrical gutter portion 6 are integrally formed by providing a gap g1.

In particular, in the upper fence body 2A, the fence plate portion 5 has a vertical plate shape, and a protrusion 7 extending in the axial direction is provided on the upper side of the outer surface of the gutter portion 6.

Further, the intermediate fence body 2B has a fence plate portion 5 in the form of an inclined plate inclined toward the shoulder direction, and a protrusion 7 extending in the axial direction is provided on the upper side of the outer surface of the gutter portion 6. .

Further, in the lower fence body 2C, the fence plate portion 5 has an inclined plate shape, as in the intermediate fence body 2B. In addition, in the lower fence body 2C, the upper fence body 2A and the intermediate fence body 2B
The reason for this is that, as shown in Fig. 3, there are no protrusions as shown in Fig. 3. This is to enable the structure 1a to be easily connected to the earth retaining fence 1 according to the present invention by fitting the gutter portions 6 and 9 together.

The surface water gutter section 3 is connected to the upper end of the fence plate section 5 of the upper fence body 2A so as to be bent into a cylindrical shape on the front side (in this embodiment, the slope shoulder 4 side), and is connected downwardly. There is an inflow gap g2 that opens between the tip of the bent part and the fence plate part 5. Further, a protrusion 7 extending in the axial direction is provided on the upper side of the outer surface of the surface water gutter section 3.

By vertically connecting and integrating the upper fence body 2A, intermediate fence bodies 2B, 2B, and lower fence body 2C having the above-described configurations, the earth retaining fence body 1 of the present invention can be obtained.
is constructed, but the connection is made through the lower gutter section 6.
The lower fence plate part 5 is arranged so that a is located below the upper gutter part 6b, and the inflow gaps g1, g1 are opened on the front side of the fence plate part 5 (in this embodiment, the slope shoulder 4 side). The upper end of the gutter 6b is fixed to the outer surface 11 of the upper gutter 6b.

Next, an example of how to construct a retaining fence using the retaining fence 1 of the present invention will be explained based on FIGS. 2 to 5. In other words, the inflow gap g1 of each gutter portion 6 is arranged so that the earth retaining fence 1 is arranged along the piles 12, which are arranged so as to slope downward from the shoulder of the slope to the foot of the slope. The desired earth retaining fence 13 is constructed by burying it so that it is open on the 4th side. At this time, the surface water gutter section 3 located at the top level is exposed at the ground surface so that its lower outer surface 15 is in contact with the slope 16, as shown in FIGS. 2 and 3. (Note that the slope shoulder side portion 14 of the surface water gutter 3 in this state will become covered with earth and sand as time passes, as shown by the dashed line 18 in Fig. 2). Due to unevenness of the slope 16 due to construction reasons, etc., part or all of the surface water gutter 3 is buried underground (see Figure 3. In the figure, the slope 16 is buried underground). In this state, an effective collection and drainage space including the inflow gap g2 is formed. The surface water and the seepage water near the ground surface are efficiently collected into the collection and drainage space through the inflow gap g2, and are smoothly drained.

In addition, since the required height of the earth retention varies depending on the soil quality, slope slope, water content in the soil, etc., as shown in FIG. (For example, the above-mentioned Jitsugan 51-
10104, which is configured in the same way) 1a is connected. In order to prevent soil particles from entering the gutter, it is preferable to attach a suitable filter material such as a corrosion-resistant net fabric to the inflow gap of the gutter of the earth retaining fence.

In the earth retaining fence constructed as described above, since the inflow gap of each gutter section opens on the slope shoulder 4 side, the water in the soil is efficiently collected by the gutter section 6, and the surface water and ground water are The seepage water near the surface is efficiently collected by the surface water gutter section 3, flows through each gutter section 6, 3, and is smoothly discharged into the drainage channel 19 shown in FIGS. 4-5. Moreover, the inflow gap g2 of the gutter portion 3
Since it opens downward, the intrusion of soil particles into the gutter section 3 is prevented as much as possible. In particular, as shown in this embodiment, when the protrusions 7 are provided on the outer surface of the gutter section 3, it is possible to improve the strength of the gutter section and to make water collection in the soil more efficient. Uru et al.
Infiltration of soil particles into the gutter can be prevented as much as possible.

Second Embodiment FIG. 6 shows another embodiment of the earth retaining fence body 1 of the present invention, which differs from the previous embodiment in that all the fence plate parts 5 of the fence bodies 1 are shaped like vertical plates. The earth retaining fence 1 has a configuration in which gutter portions 6 are attached in multiple stages at required intervals on the front side (for example, the shoulder side) of a vertical plate as a single plate.

The procedure for constructing a retaining fence using the retaining fence 1 according to this embodiment is the same as that described in connection with the previous embodiment.

(Effect of the invention) The earth retaining fence of the present invention connects a plurality of fence bodies each having a gutter section in the fence plate section vertically so that the inflow gap of the gutter section opens to the front side (for example, to the slope shoulder side). In addition, since the surface water gutter section is connected to the topmost fence board, the earth retention fence body can be used for constructing earth retention fences (at that time, if necessary, mesh fabric etc. By attaching an appropriate filter material to the inflow gap), it is possible to efficiently collect and drain water in the soil such as inside slopes, and also to collect surface water and seepage water near the ground surface into the surface water gutter. This allows for efficient collection and drainage. Moreover, since the surface water gutter section is connected to the upper end of the fence board section located at the top level so as to be bent into a cylindrical shape on the front side (for example, on the shoulder side),
This is completely different from the case of the L-shaped gutter part of the earth retaining fence according to Utility Application No. 1987-77421, in which it is difficult for soil particles to enter the surface water gutter part, and the area close to surface water and the ground surface is completely different. Permeate water can be collected and drained permanently.

In addition, the L-shaped gutter part related to Utility Application No. 1983-77421 is also
In order to contribute to the collection and drainage of surface water until the soil accumulates in the gutter, an L-shaped structure similar to that in Utility Model Application No. 1987-77421 is installed at the upper end of the earth retaining fence of the present invention. In some cases, a shaped gutter section is provided.

As stated above, the earth retaining fence body of the present invention not only enables efficient and permanent collection and drainage underground through the gutter, but also has a structure that prevents soil particles from entering. Since the gutter section makes it possible to collect and drain water efficiently and permanently at the ground surface (at the ground surface and in areas close to the ground surface), earth retaining sections such as slopes are reliably protected.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
Figure 3 is a perspective view showing the construction state of the retaining fence, Figure 3 is a sectional view showing the construction state, Figure 4 is a plan view showing the construction state, and Figure 5 is a perspective view showing the drainage channel section in the construction state. FIG. 6 is a perspective view showing another embodiment of the present invention, and FIGS. 7 and 8 are sectional views showing a conventional earth retaining fence together with its usage state. 1...Fence body for earth retention, 2...Fence body, 3...Gutter part for surface water, 5...Fence board part, 6...Gutter part, g1, g2
...Inflow gap, 11...Outer surface part.

Claims (1)

[Scope of utility model registration request] By bending the lower end of the plate-shaped fence plate part 5 into a cylindrical shape on the front side and providing an inflow gap g1 between the tip and the fence plate part 5, it functions as a waterway with the fence plate part 5. The upper and lower fence bodies 2, 2 are integrally formed with a gutter part 6, and the upper end of the lower fence plate part is connected to the upper gutter so that the lower gutter part is located below the upper gutter part. The upper end of the uppermost fence plate part is bent into a cylindrical shape on the front side, and an inflow gap g2 is created between the tip and the fence plate part. An earth retaining fence body characterized in that the fence plate part 5 and the uppermost surface water gutter part 3 functioning as a waterway are integrally formed.