JPH02164923A - Constructing method for embankment - Google Patents

Abstract

PURPOSE:To construct a stable embankment by filling a filler in a bag body installed in the loop-shaped section at the end section of a sheet-shaped body to form a sandbag, soil is filled on the flat section of the sheet-shaped body, and constructing a wall body along the end section of the embankment section. CONSTITUTION:The end section of a reinforcing sheet made of a flexible sheet- shaped body with water permeability is folded in a loop shape to provide 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 3 with a sandbag. The sheet 3 is mounted on the ground, soil 5 is put on a flat section 33 and rolled, then sheets 3 are likewise 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 stretched to introduce a pre- stress. Hooks of hooked connecting bars 8 are hooked on sandbags, and the other ends are fixed to the wall body.

Description

[Detailed description of the invention] 〈Industry〉Second field of use〉 The present invention relates to a method of constructing an embankment.

<Conventional Technology> When constructing a railway, road, etc. at a location higher than the ground, there is a case where an embankment is built by heaping up soil, etc., and the railway, road, etc. is laid on top of the embankment.

There is a method for constructing this embankment, in which walls are constructed by stacking sandbags at intervals, and soil is piled up between the walls of the sandbags.

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

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

Furthermore, if the wall is simply built up by piling up sandbags, there is a risk that the sandbag wall will collapse due to the soil thrown between the sandbag walls, causing the embankment to collapse.

<Objective of the present invention> The present invention was made to solve the above-mentioned problems, and provides a method for constructing an embankment that can easily and quickly form sandbags and can also construct a stable embankment. The purpose is to do 4.

Configuration of the Present Invention\ Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

\A) Formation of bag body (Fig. 2) The bag body 1 is formed from a flexible sheet-like body having at least air permeability, such as cloth.

The shape and size of the bag 1 are selected depending on the scale of the embankment, etc., but in this example, a long columnar bag 1 is formed.

This bag body 1 is closed, and a chamber is formed inside to be filled with a filler such as sand.

In addition, a filler such as sand is injected into the bag body 1.
Provide one or more.

The injection port 11 has a pocket shape into which a hose 2 for injecting sand or the like can be inserted.

Then, when the port 2 is filled with sand or the like and pulled out, the injection port 11 closes naturally.

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

The end portion of this reinforcing sheet 3 is folded back into a loop shape as shown in FIG. 3, and the folded end edge portion is fixed with a heavy metal 31 to form a hollow portion 32.

Further, the T-plane portion other than the hollow portion 32 is a flat portion 33.

The widths of the reinforcing sheets 1 to 3 are approximately the same length as the length in the longitudinal direction of the bag body 1, and the length in the longitudinal direction of the reinforcing sheets 3 is formed to a length that can provide a predetermined embankment strength. .

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

<C> Pressure feeding of filling material (Fig. 2) Sand 4 or the like is used as a filler to be filled into the bag body 1.

For example, as shown in FIG. 2, the filling material pressure feeding device may be one in which a compressor 22 is connected to a pressure feeding machine 21 having a filling hose 2.

First, the tip of the hose 2 is inserted into the injection port 11 of the bag body 1.

Next, operate the pressure feeder 21 and compressor 22,
The sand 4 is put into the pressure feeder 2 using a heald conveyor or the like, and is forced into the hose 2.

Suddenly, the sand 4 is ejected into the bag 1 from the tip of the hose 2, and the bag 1 is immediately filled with sand 4 by the force of the machine.

At this time, since the bag] has breathability, the air flows into the bag 1.
(J) Only the sand 4 is filled into the bag body 1.

After filling the sand 4, the pressure feeder 21 and compressor 22
, 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 J1 can be saved.

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

<2> Construction of embankment (Figure 4) The sandbag-containing reinforcing sheet 3 is placed on the planned embankment ground.

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

Next, an embankment material 5 such as soil is placed on the flat part 33 , and the embankment material 5 is compacted by the rollers 6 to perform embankment up to the height of the loop-shaped part 32 .

Then, in the same manner, the reinforcement sheets 3 are piled up in multiple tiers, and the embankment material 5 is put in to build an embankment of a predetermined height.

Construction of the wall (Fig. 1) Along the edge of the embankment constructed in step 1 above, a wall is constructed using precast panels 7 made of concrete I- or the like manufactured in advance.

In order to give this wall rigidity, it is prestressed and X is introduced.

For example, as shown in FIG. 1, one tensile member 71 is passed through each double-digit prestress in the vertical direction (-) and the tension member 71 is tensed to introduce prestress.

When constructing the wall, a gap is provided between the wall and the loop-shaped portion 32 of the reinforcing sheet 3.

<Go> Connecting sandbags and walls (Fig. 5.6) Next, connect the wall 7 and the two I bags with the footer connections ♀, I, (bonding 8).

The hook 1 connecting rod 8 is a copper rod with a hook attached to one end as shown in FIG.
The sandbag can be connected to the wall 7 by hooking it onto the wall and fixing the other end to the wall 7.

The hooked connecting rod 8 is fixed to the wall 7 by screwing or embedding.

Also, hooky; 1 connecting rod 8 (=j number is sakura)
- Depending on the scale of the body, install the required number of sandbags vertically or horizontally to firmly connect the wall 7 and sandbags.

<G> Filling with drainage material (FIG. 1) A gap is provided in advance between the wall 7 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 drainage on the back side of the wall 7 and
There is no need to worry about the building becoming fragile due to flooding or collapsing under water pressure.

<Other Embodiments> As other embodiments, the inside of the bag 1 may be divided into a plurality of rooms.

In the case of -, the inside of the bag 1 may be partitioned off by a sheet-like body having the same breathability as the sheet-like body forming the bag 1.

For example, as illustrated in FIG.
According to the method of fixing the parts, the parts can be easily divided.

By dividing the interior 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 explained above, the following effects can be expected.

・、I＼(W) If the wall is built by stacking sandbags as before, the ten-bag wall will collapse due to the earth pressure applied between the two-bag walls, and the embankment will collapse. There is a risk of collapse.

On the other hand, in the present invention, a reinforcing sheet is added to the sandbag (=j
iJ is a structure in which embankment material is placed on top of the reinforcing sheet.

That is, since the reinforcing sheet is embedded within the embankment material, the reinforcing sheet is fixed within the embankment material due to frictional resistance.

Therefore, since the reinforcing sheet cannot be pulled out, it is possible to prevent the sandbag from falling over, and a stable embankment can be constructed.

Furthermore, by connecting the wall constructed by introducing prestress into the precast panel and the sandbag section using the foot timer 1 connecting rod, the embankment is further stabilized.
Two can be done.

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

<C> Fill the space between the wall and the sandbag with gravel or other water.

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

Therefore, there is no risk that the wall will become brittle due to water intrusion or collapse due to water pressure.

(2) Conventional sandbags require a lot of time and effort to form sandbags because the bag body is manually filled with filler such as sand.

In contrast, the present invention efficiently (fills) a filler material such as sand into a permeable bag using the pumping force of a machine.

Therefore, compared to the conventional case of relying on human power,
Always be able to form sandbags quickly and easily.

〈〈〈〈〈〈〈〈〈〈〈〈〈〈〈〈〈〈Since it is possible to efficiently fill the filler material such as sand with the pumping force of the machine, even large-capacity sandbags can be formed into sandbags in a short period of time.

〈＼If the inside of the sandbag is divided into multiple rooms, the installation stability of the bag will be improved, and the stability of the entire embankment will be improved.
It is possible to improve the

<)δ The filler injection port provided in the sandbag of the present invention is configured to close naturally when the filler spout port is pulled out.

Therefore, the trouble of occlusion work in injection "1" can be saved.

Figure 1 - Explanation of one embodiment of the present invention Explanatory diagram of the second garden two bags Figure 3: Explanatory diagram of reinforcing sheet Figure 4: Explanatory diagram of the embankment construction method Figure 5.6 - Explanation diagram of connecting rod with hook 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 with precast panels along the edge of this embankment, prestress is introduced into this wall, a connecting rod with a hook at one end is used, and the hook of this connecting rod is hooked to a sandbag, and the other A method of constructing embankments in which the ends are anchored to the wall and the wall and sandbags are connected. (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.