JPH02197619A - Formation of banking - Google Patents

Abstract

PURPOSE:To quickly form a stable banking by a method in which a banking is formed on one side plane of a soil bag formed by packing a filler into a bag incorporated into the housing part of a reinforcing sheet constituting the housing part and the plane part, and the other side plane is connected to a rigid wall. CONSTITUTION:A looped housing part 4, one side plane part 3 for banking, and the outer side plane part 31 for connection are formed of a water-permeable reinforcing sheet. Sand, etc., is packed into a bag 1 housed in the part 4, and the reinforcing sheet is placed on the ground where banking is to be formed. A banking material 6 is repeatedly charged onto the part 3 to form a banking up to the height of the part 4 to construct the banking of a given height. The end portions of the part 31 are connected to vertical and horizontal reinforcing bars 81 and 82 set along the edge of the banking, and concrete is placed into formworks on both sides of the bars 81 and 82 to form a rigid wall 8, where a drain material 9 is packed into the space between the wall 8 and the part 4. The falling-down on the soil bags can thus be prevented and the banking can thus be stabilized.

Description

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

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

There is a method of constructing this embankment by stacking sandbags at intervals to construct a wall, and then mounding soil 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 a wall is simply constructed by piling up sandbags, the earth pressure applied between the sandbag walls may cause the sandbag walls to topple, 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

<Configuration of the Present Invention> 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-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 pile-shaped 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.

The bag body 1 is also provided with one or more inlets 11 for filling a filler such as sand.

The injection port 11 has a pocket shape into which a hose 2 for injecting sand or the like 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 (Figure 3) The reinforcement sheet is a flexible sheet-like body that has water permeability.

Using this reinforcing sheet, a flat part and a loop-shaped storage part 4 are formed in the middle of the flat part.

Plane section (on the back side, with the storage section 4 in between, one is the embankment plane section 3 and the other is the connecting plane section 31.

The storage section is formed by bending a reinforcing sheet into a loop shape and fixing both ends of the reinforcing sheet to a flat surface using clasps 41.

Then, the bag 1 is stored in the storage section 4.

<C> Pressure feeding of filling material (Fig. 2) Sand 5 or the like is used as a filler to be filled into the bag body 1.

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

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

Next, the pressure feeder 21 and the compressor 22 are operated,
Sand 5 is put into a pressure feeder 21 using a belt conveyor or the like, and is forced into the hose 2.

Then, the sand 5 is forcefully ejected into the bag body 1 from the tip of the hose 2, and the sand 5 is immediately poured into the bag body 1 by the pressure feeding force of the machine 1.
can be filled.

At this time, since the bag 1 has breathability, the air flows through the bag 1.
The sand 5 escapes to the outside, and only the sand 5 is filled into the bag body 1.

After filling the sand 5, the pressure feeder 21 and compressor 22
, and pull out the hose 2 from inside the bag 1 (.

At this time, since the injection port 11 is configured to close naturally when the hose 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 embankment (Figure 1) Place the reinforcement sheet containing sandbags on the ground where the embankment is planned.

Filling material 6 such as soil is placed on the flat surface portion 3 of the reinforcing sheet, and the roller 7 rolls the filling material 6 into the storage portion 4.
The embankment will be carried out to a height of .

Then, in the same manner, reinforcing sheets containing sandbags are piled up in multiple stages and embankment material 6 is introduced to construct an embankment of a predetermined height.

<E> Reinforcement arrangement (Fig. 1.4) A rigid wall 8 is constructed along the edge of the embankment constructed as described above.

First, as shown in FIG. 4, vertical reinforcing bars 81 and horizontal reinforcing bars 82 are arranged in a grid along the edge of the embankment.

At this time, the vertical and horizontal reinforcing bars 81 and 82 and the storage section 4 of the reinforcing sheet
Leave a space between (.

<F> Connection of reinforcing sheet and reinforcing bars (Fig. 1.4) Next, the ends of the connecting plane portions 31 of the reinforcing sheet are directly connected to the vertical and horizontal reinforcing bars 81 and 82.

In this case, it is preferable to connect the end of the connecting plane portion 31 to the intersection of the vertical reinforcing bars 81 and the horizontal reinforcing bars 82 with a wire or the like.

<G> Assembly of the formwork The formwork is assembled by sandwiching reinforcing sheets vertically on both sides of vertical and horizontal reinforcing bars 81 and 82.

Then, concrete is poured into the formwork to construct a rigid wall 8 as shown in FIG.

<H> Filling with drainage material (FIG. 1) A gap is provided in advance between the rigid wall 8 and the reinforcing sheet storage section 4.

During this time, a drainage material 9 such as gravel is filled.

This makes it possible to drain water from the rear surface of the rigid wall 8, and there is no fear that the rigid wall 8 will become brittle due to water intrusion or collapse under water pressure.

<Other Examples 1> Although the connecting plane part 31 of the reinforcing sheet in the above embodiment was a single piece integrated with the embankment plane part 3, as another example, a connecting plane part formed separately could be used. 31 may be connected to the embankment plane part 3 or the storage part 4.

Further, the connecting plane portion 31 is not in the form of a single piece, but may include a plurality of belt-like pieces.

In short, it is sufficient as long as it has the strength to reliably connect the embankment and the rigid wall 8.

<Other Embodiments 2> As yet another embodiment, the inside of the bag 1 may be divided into a plurality of rooms.

In this case, the inside of the bag 1 may be partitioned by a sheet-like body having the same quality of air permeability as the sheet-like body forming the bag 1.

For example, as shown in FIG. 5, by folding the longitudinal ends of the sheet-like body inward and fixing the end edges with clasps 12, 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 has been described above, the following effects can be expected.

(a) If a wall is simply built by piling up sandbags as in the past, there is a risk that the sandbag walls will topple due to the pressure of the earth injected between the sandbag walls, causing the embankment to collapse.

In contrast, the present invention attaches a reinforcing sheet to the sandbag,
The structure is such that embankment materials are placed on top of the reinforcing sheet.

That is, since the reinforcing sheet is buried 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, the sandbags can be prevented from falling over, and a stable embankment can be constructed.

Furthermore, by directly connecting the rigid wall and the reinforcing sheet, the stability of the embankment can be further improved.

<Exit> Fill the space between the rigid wall and the sandbag with drainage material such as gravel.

Therefore, it is possible to drain water from the rear surface of the rigid wall.

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

<C> Conventional sandbags are made by manually filling the bag with filler such as sand, which requires a great deal of time and effort to form the sandbag.

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, sandbags can be formed very quickly and easily compared to conventional manual methods.

<2> In the present invention, sandbags and other fillers can be efficiently filled using the pumping force of the machine, so even large-capacity sandbags can be formed in a short time.

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

<F> The filler injection port provided in the sandbag of the present invention is configured to close naturally when the filler spouting hose is pulled out.

Therefore, the trouble of closing the injection port can be saved.

[Brief explanation of the drawing]

Fig. 1 2 An explanatory diagram of one embodiment of the present invention Fig. 2: An explanatory diagram of the bag Fig. 3: An explanatory diagram of the reinforcing sheet Fig. 4: An explanatory diagram of the connection between the reinforcing bars and the reinforcing sheet Fig. 5: Other illustrations Explanatory diagram of Example 2

Claims (2)

[Claims] (1) A planar part and a loop-shaped storage part are formed in the middle of the planar part using a flexible sheet-like body that has water permeability, and is closed with at least a flexible sheet-like body that has air permeability. forming a bag body, placing the bag body in the storage section, pressurizing a filler into the bag body from an injection port provided in the bag body to form a sandbag, and forming the sandbag on one side of the flat surface with the sandbag sandwiched therebetween; A method of constructing an embankment, which is characterized by embanking one part of the earth, and directly connecting the end of the flat part on the other side to a rigid wall constructed along the sandbags. (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.