JPH02164925A - Constructing method for embankment - Google Patents

Abstract

PURPOSE:To construct a stable embankment by installing a bag body made of a sheet-shaped body with air permeability in a loop-shaped section provided at the end section of the sheet-shaped body, filling a filler into the bag body to form a sandbag, and filling soil on the flat section of the sheet-shaped body. CONSTITUTION:The end section of a reinforcing sheet 3 made of a flexible sheet-shaped body with water permeability is folded in a loop shape to form a loop-shaped section 32, and a bag body 1 made of a flexible sheet-shaped body with air permeability is stored in the loop-shaped section 32. Sand or the like is filled in the bag body 1 to form a reinforcing sheet with a sandbag. The reinforcing sheet with a sandbag is mounted on the ground, soil 5 is put and rolled on the flat section 33 of the sheet 3, then reinforcing sheets with a sandbag are stacked in multiple stages to construct an embankment. A wall body is constructed with a precast panel 7 along the edge section of the embankment, and a tensile material 71 is tightened to introduce a pre-stress. Hooks of hooked steel bars 82 of a connecting metal are hooked on sandbags, and steel bars 83 on the other end are fixed to the wall body.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a method for constructing an embankment.

<Prior Art> When constructing a railway, road, etc. at a location higher than the ground, an embankment is constructed by mounding earth, etc., and the railway, road, etc. is sometimes constructed on top of the embankment.

This embankment construction method requires intervals = J:'117
There is a method of building a wall by piling up sandbags, and then piling up -nato between the sandbag walls.

<Problems to be Solved by the Present Invention> In conventional sandbags, the bag body is manually filled with a filler material such as sand.

Therefore, forming sandbags requires a lot of time and effort.

In addition, even if the wall is built by piling up sandbags, there is a risk that the sandbag wall will fall down due to the river and the embankment will collapse.

1 of the present invention The present invention has been made to solve the problems mentioned above, and it is possible to form sandbags easily and quickly, and also to build stable embankments. The purpose is to provide a method for constructing embankments.

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

<A> Formation of bag body (FIG. 2) The bag body 1 is formed from a flexible sheet-shaped body having at least air permeability, for example, cloth.

The shape and size of the bag 1 may be selected depending on the scale of the plate 1, etc., or this embodiment is a case where a long forest-like bag 1 is formed.

This bag body 1 is closed, and a chamber 1 is formed inside to fill with a filler material such as sand 3. The bag body 1 also has one or more inlets 11 for filling a filler material such as sand. Provided 6. This injection port 11 has a pogget shape, into which a hose 2 for injecting the crushing blade can be inserted.

When the hose 2 is filled with sand or the like and the hose 2 is pulled out, the inlet 11 closes naturally.

<Opening> Reinforcement Sheet (Fig. 3) The reinforcement sheet 3 is a flexible sheet I-shaped body having water permeability.

The ends of the reinforcing sheets 1 to 3 are folded back into a loop shape, as shown in FIG.

”:T,) 1-The planar portion other than the tube-shaped portion 32 is the planar portion 33.
shall be.

rl-] of the reinforcing sheet 3 i; i, the length in the longitudinal direction of the bag body 1 is approximately the same, and the length in the longitudinal direction of the reinforcing sheet 3 is set to a length that can obtain a predetermined embankment strength. Form.

Then, the bag 1 is stored in the loop-shaped portion 32 of the reinforcing sheet 3.

・、I＼〉Fig. 2 Pressure feeding of filling material) Sand 4 or the like is used as a filler to be filled into the bag body 1.

For example, as shown in FIG.
A concatenation of the following can be considered.

Step J': Insert the tip of the hose 2 into the injector 111 of the bag 1 5. Next, operate the pressure feeder 21 and compressor 22.
Sand 4 is put into a pressure feeder 21 using a conveyor or the like, and is forced into the port 2.

-4 slot, the tip of the hoe 42, the sand 4 is forcefully ejected into the bag body 1, and the bag body 1 is immediately
Sand 4 can be filled inside.

At this time, since the bag 1 has breathability, the air flows through the bag 1.
The sand 4 is removed from the bag to the outside, and only the sand 4 is filled into the bag.

After filling the sand 4, the pressure feeder 21 and the combiner 2
2 and pull out the hose 2 from inside the bag body 1.

At this time, since the injection port 11 is configured to close naturally when the port 2 is pulled out, the effort of closing the injection port 11 can be saved.

Another possible method for pumping the filler is to push the filler into the bag body 1 using a piston or the like.

<2> Construction of the embankment (Figure 4) Place the Hito Takahito reinforcing sheet 3 on the ground where the embankment is planned.

At this time, the reinforcing sheet 3 is laid so that the flat part 33 is located on the embankment side.

Next, filling material such as soil + a material 5 is put into the flat part 33+, and
- Compact the embankment material 5 with the toss C) and make the embankment according to the height of the recessed part 32. 3. Then, in the same manner, the reinforcing sheets 3 containing sandbags are stacked in multiple tiers, and the embankment material 5 is put in to build an embankment of a predetermined height.

・Construct the wall using the pre-fabricated concrete springs ν [7] along the edge of the wall (・I4 construction (Figure 1)) do.

In order to provide rigidity to this wall, Breath I/Res is introduced-4.

For example, as shown in Fig. 1, in each of the vertically stacked bushes, a tension member 71 is passed through the four springs 717, and the tension member 71 is tensed and prestressed. will be introduced.

When constructing the wall, a gap should be provided between the wall and the moon-shaped portion 32 of the reinforcing sheet 3. 1. Connecting the wall and sandbags (Figure 5.6) Next, connect the wall body and the 1-bag with the metal fitting 8
Concatenate by.

The connecting fitting 8 has a plurality of hooks at one end and a rod-shaped body at the other end.

For example, as shown in FIG. 5.6, on one side of the connecting plate 81, take a plurality of hooks (=t m rods 82) having hooks at the ends.

If a hook is required, attach the end of the steel bar 82 without the hook to the connecting plate 81.

Further, one end of a steel rod 83 is attached to the other side of the connecting plate 81.

The hook 82 and the steel rod 83 are covered so that they are parallel to the axis of the rain sound.

Then, the hooks of the steel rods 82 are hooked onto the reinforcing sheet 3 of the sandbag, and the free ends of the steel rods 83 are fixed to the wall to connect the wall and the sandbag.

The steel rod 83 is fixed to the wall by screwing or embedding.

In addition, the required number of connecting fittings 8 are installed vertically or horizontally depending on the scale of the embankment so that the sandbags on the wall can be firmly connected.

<1.5 Filling with drainage material (Fig. 1) A gap is provided in advance between the wall and the hollow-shaped portion 32 of the reinforcing sheet 3.

This gap is filled with a drainage material 9 such as gravel.

This allows water to drain from the back of the wall and eliminates the risk of the wall becoming brittle due to water intrusion or collapsing under water pressure.

・Other Examples N As another example, the inside of the bag is divided into multiple rooms.
4 may occur.

In this case, it is preferable to partition the inside of the bag 1 by a sheet-like body having ventilation holes 1-1- of the same quality as the sheet-like body forming the bag 1.

For example, as shown in FIG. 7, the longitudinal ends of the sheet-like body are folded inward and the end edges are fixed with the clasps 12, whereby the sheet-like body can be easily divided.

By dividing the inside of the bag 1 in this manner, the installation stability of the bag 1 can be improved.

Effects of the Present Invention> Since the present invention is as described above, the following effects can be expected.

(a) If the walls are constructed by simply stacking sandbags as in the past, there is a risk that the sandbag walls will topple due to the soil thrown between the sandbag walls and the embankment will collapse.

In contrast, the present invention attaches a reinforcing sheet to the sandbag (J
, the structure is such that embankment material is put into the reinforcement sheet +.

That is, since the reinforcing sheet I is buried within the embankment, the reinforcing sheet is fixed within the embankment H due to frictional resistance.

Therefore, since the reinforcing sheet cannot be pulled out, the sandbags can be prevented from falling over, and a stable embankment can be constructed.

Furthermore, the stability of the embankment can be further improved by connecting the reinforcing sheet to the wall constructed by introducing Press I/Less into the precast panel using connecting fittings.

By connecting the wall and the reinforcing sheet with a special link connection, it is possible to prevent the reinforcing sheet from being cut due to sinking deformation of the embankment.

<Fill drainage material such as gravel between the Neu wall and the sandbag section.

Therefore, it is possible to drain water from the back of the wall.

(Thus, there is no risk that the walls will become brittle due to flooding or collapse under water pressure.

The sandbags of the Japanese Congolese Dynasty were made by manually filling the bag with filler such as sand, which required a great deal of time and effort. .

In contrast, the present invention efficiently fills the air-permeable bag with a filler such as sand using the pumping force of a machine.

Therefore, compared to conventional manual methods, J1 can form sandbags quickly and easily.

The present invention uses the pumping power of the machine to efficiently fill sand and other fillers, making it possible to create large-capacity sandbags in a short time! F-piece J- can be said.

<F> When the inside of the sandbag is divided into a plurality of rooms, the installation stability of the sandbag can be improved, and the stability of the entire embankment can be improved.

<G> The filler injection port provided in the sandbag of the present invention is configured so that it closes naturally when the filler spouting hose is pulled out.

Therefore, the trouble of occlusion work during injection can be saved.

[Brief explanation of the drawing]

Figure 1: Explanatory diagram of one embodiment of the present invention Explanatory diagram of Setsu 2 Garden Nibukuro body Figure 3: Explanatory diagram of reinforcing sheet Figure 4: Explanatory diagram of the embankment construction method Figure 5.6・Explanatory diagram of connecting fittings Figure 7: Explanatory diagram of other embodiments

Claims (2)

[Claims] (1) forming a loop-shaped part by folding back the end of the planar part of a flexible sheet-like body that has water permeability, and forming a closed bag with at least the flexible sheet-like body that has air permeability; This bag body is installed in the loop-shaped part, and a filler material is filled into the bag body by force-feeding from an injection port provided in the bag body to form a sandbag, and embankment is performed on the flat surface of the sheet-shaped body of this sandbag. , A wall is constructed using precast panels along the edge of this embankment, prestress is introduced into this wall, and a connecting metal fitting has multiple hooks at one end and a rod-shaped body at the other end. A method for constructing an embankment, in which the plurality of hooks of the connecting fitting are hooked onto the sandbag, and the rod-shaped body at the other end is fixed to the wall to connect the wall and the sandbag. (2) The method for constructing an embankment according to claim 1, wherein the inside of a bag body installed in a loop-shaped portion of a sheet-like body is divided into a plurality of chambers.