JPH11280077A - Dam plate for retaining soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily assemble and remove a dam plate for retaining soil. SOLUTION: A dam plate for retaining soil 1 is constituted in such a way that a hollow part 4 in which a pile 3 is inserted into a fringe part on one side of a dam plate main body 2 supporting digged soil on its side is provided and that a connection part 5 is provided in the other fringe part. Here, two adjacent dam plates for retaining soil 1, 1 are mutually connected in the horizontal direction by fitting the hollow part 4 belonging to the dam plate for retaining soil 1 on one side into the connection part 5 belonging to the dam plate for retaining soil 1 on the other side. A ground insertion piece 6 to be inserted into the ground is provided in a lower fringe part of the dam plate main body 2. Reinforcing ribs 7a, 7b in the horizontal direction are provided in the vicinity of upper fringe and lower fringe of the dam plate main body 2, respectively, and the reinforcing rib 7b in the vicinity of the lower fringe part is provided at a ground embedding position, that is, a section which becomes a ground surface position when the ground insertion piece 6 is inserted into the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embankment dam plate mainly used for foundation work of a residential building.

[0002]

2. Description of the Related Art In order to build a house, it is common practice to first perform excavation work to dig a construction site of a foundation, and then construct an RC cloth foundation at the excavated location. Here, of course, excavated soil is naturally generated at the time of root cutting. However, such excavated soil is usually temporarily placed next to the fabric foundation construction site for the time being, and is often backfilled after construction of the fabric foundation.

[0003] Here, when excavation work is performed near the site boundary, particularly when the ground surface of the site is higher than the surrounding area, the temporarily placed excavated soil easily collapses to the outside of the site, which is likely to be a road boundary. In such a case, there is a problem in that the excavated soil flows into a drainage gutter installed on the side of the road and closes the gutter, or at the boundary of an adjacent land, excavated soil collapses in an adjacent site.

[0004] Therefore, conventionally, a pile was driven into the vicinity of the site boundary, and a scaffold plate was applied to the inside of the pile to serve as a retaining plate.

[0005]

However, in such a method, it is necessary to bind the scaffolding plates to the piles one by one using a binding wire or the like, which requires a great deal of time for the operation, and also requires the scaffolding plates to be attached. When removing them, the binding wires had to be removed one by one, which was a rather cumbersome task.

The present invention has been made in view of the above circumstances, and has as its object to provide an earth retaining weir plate that can be easily assembled and removed.

[0007]

In order to achieve the above object, a retaining weir plate according to the present invention is provided with one edge of a weir plate main body for supporting excavated soil laterally. And a connecting portion connected to the adjacent hollow portion is provided on the other edge portion.

Further, in the earth retaining weir plate according to the present invention, the hollow portion is formed of a cylindrical body, and the connecting portion is formed of a semi-cylindrical body which is in contact with a peripheral surface of the cylindrical body. .

Further, in the retaining weir plate according to the present invention, the hollow portion is formed by a pair of cylindrical members divided and arranged in two upper and lower stages, and the connecting portion is disposed between the pair of cylindrical members. It is formed of a cylindrical body.

[0010] In the dam retaining plate according to the present invention, a pile portion driven into the ground is provided at one edge of a dam plate main body for supporting excavated soil laterally, and the other edge is adjacent to the pile. It is provided with a connection portion connected to the stake portion.

[0011] The retaining weir plate according to the present invention is provided with an underground insertion piece at a lower edge portion of the weir plate main body.

Further, in the dam retaining plate according to the present invention, a reinforcing rib is formed in a horizontal direction at a position where the lower edge portion of the dam plate main body is buried in the ground.

In the retaining weir plate according to the first aspect of the present invention, prior to root cutting work, first, a pile is passed through a hollow portion provided at one edge of the weir plate main body, and the pile is placed in this state. Driving into the ground to make the retaining dam self-supporting. Next, the hollow portion of the second retaining dam plate is connected to the connecting portion of the preceding retaining dam plate, and in this state, a pile is similarly passed through the hollow portion and driven into the ground. Hereinafter, these steps are repeated to successively arrange the retaining weir plates one after another.

According to the fourth aspect of the present invention, first, a pile portion provided at one edge of the main body of the dam board is pushed up to the ground, and is driven into the ground. Independently stand the weir plate. Next, the pile portion of the second retaining dam plate is connected to the connecting portion of the precedingly arranged retaining dam plate, and in this state, the pile portion is similarly driven into the ground. Hereinafter, these steps are repeated to successively arrange the retaining weir plates one after another.

This eliminates the need for the work of binding the scaffold plates as in the prior art, thereby improving the workability in assembly and removal.

In the first and fourth aspects of the present invention, the connection means that it is sufficient if the displacement of the adjacent retaining dams in the in-plane direction can be prevented. It may be in a disconnected state on the side where the earth pressure acts.

According to the first aspect of the present invention, any structure may be used as long as the pile can be inserted into the hollow portion and the connecting portion can be connected to the hollow portion in the in-plane direction as described above. If the hollow portion is formed of a cylindrical body, and the connecting portion is formed of a semi-cylindrical body abutting on the peripheral surface of the cylindrical body, if it is versatile or can be connected to a commercially available pile. Workability is improved. Further, if the hollow portion is formed by a pair of cylindrical bodies divided and arranged in two upper and lower stages, and the connecting portion is formed by a cylindrical body disposed between the pair of cylindrical bodies, soil may be formed from either side. The structure can receive the pressure, and it is not necessary to pay attention to the arrangement direction of the retaining dam plate.

Further, according to the first and fourth aspects of the present invention, it is not necessary to provide anything at the lower edge of the weir plate body, but if an underground insertion piece is provided at the lower edge, It is possible to prevent a gap from occurring between the dam body and the ground.

Further, if reinforcing ribs are formed horizontally in the ground embedding position at the lower edge of the weir plate main body, not only the out-of-plane rigidity of the weir plate main body can be increased, but also the position of the reinforcing rib can be increased. As you can drive a pile or a pile part as a mark,
Since the work becomes easier and the driving depth can be made uniform, the improvement of the quality of earth retaining work can be expected.

The shape, structure, or material of the main body of the weir plate is not limited.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a retaining weir plate according to the present invention will be described below with reference to the accompanying drawings.
It is to be noted that the same reference numerals are given to components and the like that are substantially the same as those in the conventional technology, and description thereof will be omitted.

FIG. 1 is an overall perspective view showing a retaining weir plate according to this embodiment, and FIG. 2 is a sectional view of the same. As can be seen from these figures, the retaining dam plate 1 according to the present embodiment is shown.
Is provided with a hollow portion 4 into which a pile 3 is inserted at one edge of a dam plate body 2 that supports excavated soil laterally, and a connecting portion 5 at the other edge.

Here, as can be clearly understood from the horizontal sectional view of FIG. 2B, the hollow portion 4 is formed of a cylindrical body, and the connecting portion 5
Is formed of a semi-cylindrical body that is in contact with the peripheral surface of the cylindrical body. The two adjacent retaining weir plates 1, 1 are in-plane by fitting a hollow portion 4 belonging to the other retaining weir plate 1 into a connecting portion 5 belonging to one retaining weir plate 1. They are interconnected in a direction.

On the other hand, an underground insertion piece 6 to be inserted into the ground is provided at the lower edge of the weir plate main body 2. In addition, weir board body 2
In the vicinity of the upper edge and the lower edge, a horizontal reinforcing rib 7a,
7b, and reinforcing ribs 7b near the lower edge
Is provided at the ground embedding position, that is, at a position that is exactly the ground surface position when the underground insertion piece 6 is inserted into the ground.

For the retaining dam plate 1, the dam plate main body 2 is formed of a main body portion of a plate material such as an aluminum alloy, and the vicinity of the upper edge and the lower edge of the main body portion are bent to form the reinforcing ribs 7a, 7b, and 7b. Manufacture is possible by forming the hollow portion 4 and the connecting portion 5 by forming the underground insertion piece 6 and further bending the left and right edges thereof.

In the retaining weir plate 1 according to the present embodiment, prior to the excavation work, the pile 3 is passed through the hollow portion 4 provided at one edge of the weir plate main body 2, and in this state, the pile 3 To
For example, the soil retaining weir plate 1 is driven into the ground near the gutter 11 provided on the side of the road as shown in FIG.

At this time, the underground insertion piece 6 is inserted into the ground, and the pile 3 is firmly driven into the ground until the reinforcing rib 7b comes to just near the ground surface. In addition, the retaining dam plate 1 is arranged so that the connecting portion 5 comes to the temporary placing side of the excavated soil.

Next, as shown in FIG. 2B, the hollow portion 4 of the second retaining dam 1 is fitted into the connecting portion 5 of the preceding retaining dam 1. In such a state, the pile 3 is similarly passed through the hollow portion and driven into the ground. Hereinafter, these steps are repeated to successively arrange the retaining weir plates 1 one after another.

When the installation of the retaining dam plate 1 is completed,
A root cutting operation is performed, and excavated soil 12 generated at that time is laterally supported by the weir plate main body 2 as shown in FIG. Then, after a series of operations such as root cutting, foundation construction, backfilling of temporarily placed excavated soil or carrying out unnecessary earth and sand,
The pile 3 is pulled out, and the retaining dam plate 1 is collected and prepared for the conversion at the next construction site.

As described above, according to the retaining dam 1 according to the present embodiment, a new retaining dam is inserted into the connecting portion 5 of the preceding retaining dam 1. In this state, the procedure of fitting the hollow portion 4 into the hollow portion 4 and driving the pile 3 into the hollow portion to make it self-supporting is repeated one after another, so that the conventional work of binding the scaffolding plate becomes unnecessary, and the assembly is accordingly performed. Is improved. Also, when removing, it is only necessary to pull out the stake 3, so that the work of cutting the binding wire as in the related art is not required, and the workability can be improved here as well.

Further, according to the dam retaining plate 1 according to the present embodiment, the hollow portion 4 is formed of a cylindrical body, and the connecting portion 5 is formed of a semi-cylindrical body which is in contact with the peripheral surface of the cylindrical body. Therefore, general versatility and workability at the time of connection with commercially available piles are improved, and the manufacturing cost can be reduced.

Further, according to the dam retaining plate 1 according to the present embodiment, the underground insertion piece 6 is provided near the lower edge portion of the dam retaining plate main body 2, so that the dam retaining plate main body 2 and the ground can be connected to each other. It is possible to prevent the formation of a gap between them. Therefore, it is possible to prevent muddy water mixed with earth and sand from flowing into the gutter 11 in rainy weather.

In addition, according to the dam retaining plate 1 according to the present embodiment, since the reinforcing ribs 7b are formed in a horizontal direction at the ground embedding position of the lower edge portion of the dam plate main body 2, they are provided near the upper edge. Not only the out-of-plane rigidity of the dam plate body 2 can be increased together with the reinforcing ribs 7a, but also the pile 3 can be driven into the ground using the position of the reinforcing ribs 7b as a guide, so that the soil retaining work is facilitated and the driving is performed. Since the depths can be made uniform, the improvement of the quality of earth retaining work can be expected.

In this embodiment, the ordinary pile 3 is used as a pile for self-supporting the retaining weir plate 1, but instead of this, both the intrusion prevention fences 21 are used as shown in FIG. The pile 22 provided on the edge may be driven into the hollow portion 4 of the retaining dam plate 1.

In the present embodiment, the hollow portion 4 is formed as a cylindrical body having the same height as the weir plate main body 2, and the connecting portion 5 is formed as a semi-cylindrical body abutting on the peripheral surface of the hollow portion. However, the shape and structure of the hollow portion and the connecting portion are arbitrary as long as the configuration can prevent two adjacent retaining dam plates from shifting in the in-plane direction. For example, an earth retaining weir plate 31 as shown in FIG. 5 may be used.

The retaining weir plate 31 shown in FIG. 2 has hollow portions 32a and 32b divided into two upper and lower stages at one edge of the dam plate main body 2 and the hollow portion 32 at the other edge.
A connecting portion 33 sized so as to be sandwiched between a and 32b is provided.

In this configuration, the hollow portions 32a and 32b of the adjacent retaining dam plate 31 are arranged so as to sandwich the connecting portion 33 of the preceding retaining dam plate 31 so that the connecting portion 33 is interposed therebetween. The material axes of the hollow portions 32a and 32b are aligned, and the pile 3 is driven in such a state to continuously arrange the retaining dam plates 31 one after another.

Therefore, unlike the above-described embodiment, the dam plate main body 2 is configured to receive the earth pressure from either side, and it is not necessary to pay attention to the arrangement direction of the retaining dam plate 31.

In this embodiment, the pile 3 is inserted into the hollow portion 4. However, instead of this configuration, a retaining dam plate 41 as shown in FIG. 6 may be used. The retaining weir plate 41 shown in the figure is substantially the same as the retaining weir plate 1, except that a pile portion 42 is attached to one edge of the weir plate main body 2.

According to this configuration, substantially the same operation and effect as those of the above-described embodiment can be obtained, and another effect that it is not necessary to separately procure the pile 3 is also obtained.

In this embodiment, the reinforcing ribs 7a, 7a
However, if the earth pressure can be laterally supported, these may be omitted, and the underground insertion piece 6 may have a possibility that earth and sand may flow out from a gap with the ground. If not, it can be omitted.

[0042]

As described above, according to the retaining weir plate of the present invention according to the first aspect, the work of binding the scaffold plate as in the prior art is unnecessary, and the workability in assembly is improved accordingly. Is done. Also, when removing, it is only necessary to pull out the pile, so the work of cutting the binding wire as in the past is not necessary,
Here, the workability can be improved.

Further, according to the retaining weir plate of the present invention according to the second aspect, the versatility and the workability at the time of connection with commercially available piles are improved, and the manufacturing cost is also reduced. It also has the effect that it can be done.

According to the third aspect of the present invention, the earth pressure can be received from either side, and it is necessary to pay attention to the arrangement direction of the earth retaining dam. It also has the effect of disappearing.

In addition, according to the retaining weir plate of the present invention according to the fourth aspect, it is not necessary to bind the scaffold plate as in the related art, and the workability in assembly is improved accordingly. Also,
When removing, it is only necessary to pull out the stake, so that the work of cutting the binding wire as in the related art becomes unnecessary, and the workability can be improved here as well. Also, there is no need to separately procure piles.

In addition, according to the retaining weir plate of the present invention according to claim 5, it is possible to prevent a gap from being formed between the weir plate main body and the ground. Therefore, there is also an effect that it is possible to prevent outflow of muddy water mixed with earth and sand in rainy weather.

Further, according to the retaining weir plate of the present invention according to claim 6, not only the out-of-plane rigidity of the weir plate main body can be increased, but also the pile or the pile portion can be formed by using the position of the reinforcing rib as a guide. Since it can be driven into the ground, the earth retaining work can be easily performed, and since the driving depth can be made uniform, the effect of improving the quality of the earth retaining work can be expected.

[0048]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an earth retaining weir plate according to an embodiment.

FIGS. 2A and 2B are diagrams of a retaining weir plate according to the embodiment, wherein FIG. 2A is a vertical cross-sectional view, and FIG. 2B is a horizontal cross-sectional view along line AA.

FIG. 3 is a diagram showing a usage state of a retaining weir plate according to the embodiment.

FIG. 4 is an overall perspective view showing another mode of use.

FIG. 5 is an overall perspective view of a retaining wall plate according to a modification.

FIG. 6 is an overall perspective view of an earth retaining weir plate according to another modification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 31, 41 Earth retaining plate 2 Embankment main body 3 Pile 4, 32a, 32b Hollow part 5, 33 Connecting part 6 Underground insertion piece 7a, 7b Reinforcement rib 42 Pile part

Claims (6)

[Claims] 1. A weir plate main body that supports excavated soil laterally, a hollow portion through which a pile is inserted is provided at one edge portion, and a connecting portion that is connected to the adjacent hollow portion is provided at the other edge portion. An earth retaining weir plate characterized by the following. 2. The retaining weir plate according to claim 1, wherein said hollow portion is formed of a cylindrical body, and said connecting portion is formed of a semi-cylindrical body abutting on a peripheral surface of said cylindrical body. 3. The method according to claim 1, wherein the hollow portion is formed by a pair of cylindrical members divided and arranged in two upper and lower stages, and the connecting portion is formed by a cylindrical member disposed between the pair of cylindrical members. Weir plate for earth retaining. 4. A pile portion driven into the ground is provided at one edge of a weir plate main body that laterally supports excavated soil, and a connection portion connected to the adjacent pile portion is provided at the other edge. An earth retaining weir plate characterized by the above-mentioned. 5. The retaining weir plate according to claim 1, wherein an underground insertion piece is provided at a lower edge portion of the weir plate main body. 6. The retaining weir plate according to claim 1, wherein a reinforcing rib is formed in a horizontal direction at a ground embedding position at a lower edge portion of the weir plate main body.