JPS6325122B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for laying sand bag mats, and more particularly to a method for laying sand bag mats on the bottom of water efficiently.

Traditionally, in order to protect the river bed, the seabed, and the ground in contact with fresh water from erosion or scouring caused by river water and sea waves, sand was filled into sand bag mats made of synthetic fiber threads. A method of laying sand bag mats is to fill sand bag mats in the form of a single or multiple bags that are sewn together or sewn together, and then lay them for protection of sea walls, breakwaters, and foundation work for riverbanks. Are known.

By the way, in the conventional laying method as mentioned above, when a bag-shaped sand bag pine is sunk into a river bed or the seabed, air enters the sand bag pine and the sand bag pine floats to the surface, so it is difficult for a diver to sink it. The method used was to push the sand bag mats in with a stick or the like and lay them while expelling the air.

However, this kind of laying work requires a lot of time and effort, and there is a problem in that the sandbag mats cannot be sunk efficiently.

This invention was devised by focusing on the conventional problems, and its purpose is to provide a method for laying sand bag mats that can efficiently and safely lay sand bag mats. It is something.

In order to achieve the above object, the gist of the present invention is to lay at least one sandbag mat in the following steps.

(1) The process of attaching the inlet and outlet fittings to both ends of the impermeable sand bag mat on board the sand mat that floats on the surface of the water.

(2) A step of installing the outlet fitting of the sand bag mat to which the outlet fitting is attached at a predetermined position on the bottom of the water, and connecting the water supply pipe connected to the sand bag mat boat floating on the water surface to this outlet fitting.

(3) Water is injected into the sand bag mat from the sand mat ship through the water supply pipe, and the sand bag ship is moved along the direction in which the sand bag mat is laid, and the sand bag is removed using a presser roller suspended from the sand mat ship. The process of laying down the sand bag mat on the bottom side of the water while expelling the air inside the mat.

(4) Stop water injection when the sandbag mat is full of water, and after the sandbag mat has been laid on the bottom of the water, the inlet fitting attached to the other end of the sandbag mat The process of fixing the water to the bottom of the water.

(5) A step of removing the water supply pipe connected to the outlet fitting of the sand bag mat, and connecting the sand supply pipe connected to the sand mat boat floating on the water surface to the inlet fitting on the other end side.

(6) A step of sequentially supplying and filling the sand bag mat with a mixture of sand and water from a sand mat ship through a sand supply pipe, and at the same time pushing out the water in the sand bag mat.

(7) After the specified amount of sand is filled into the sand bag mat,
The process of removing and collecting the inlet and outlet fittings attached to both ends of the sand bag and sealing both ends of the sand bag mat.

Embodiments of the present invention will be described below based on the accompanying drawings.

First, on the sand mat boat 1 floating on the water surface W,
An inlet fitting 3 and an outlet fitting 4 are respectively attached to both ends of a plurality of impermeable sand bag mats 2 loaded on the sand mat boat 1, and a submersible boat 5 is installed as shown in FIGS. 1 to 3. A diver M who has gotten off the sandbag mat 2 holds one end 2a of the sandbag mat 2 to which the outlet fitting 4 is attached, and sets it at a predetermined position on the bottom G.

Next, one end of a water supply pipe 7, which is connected via a pump 6 to the sandboat boat 1 floating on the water surface W, is connected to the outlet fitting 4. Water is then injected from the sand mat ship 1 into the sand bag mats 2 through the pump 6 and water supply pipe 7 as shown in FIG. Move sand mat ship 1.

At this time, as shown in FIG. 5, the upper surface of the sand bag mat 2 is successively pushed down along the longitudinal direction by a presser roller 9 suspended from the sand mat boat 1 via a wire 8, and water is injected into the sand bag mat 2. As the air inside the sand bag mats 2 is removed, the sand bag mats 2, which have increased in weight, are sequentially laid down at predetermined positions on the water bottom G.

In this way, when the sand bag mat 2 is completely filled with water, the drive motor (not shown) of the pump 6 is stopped to stop water injection, and the sand bag mat is placed on the water bottom G. Complete the installation of step 2.

Next, the inlet fitting 3 attached to the other end side 2b of the sand bag mat 2 is fixed at a predetermined position on the water bottom G, and the inlet fitting 3 attached to the one end side 2a of the sand bag mat 2 is fixed as shown in FIG. At the same time, remove the water supply pipe 7 from the other end side 2 as shown in Figs.
A sand supply pipe 10 connected to the sand mat boat 1 floating on the water surface W is connected to the inlet fitting 3 of b, and sand S and water are supplied from the sand mat boat 1 into the sand bag mat 2 through the pump 11 and the sand supply pipe 10. The sand bag mat 2 is filled with a mixture of the sand bag mat 2 and the sand bag mat 2.

In this way, a predetermined amount of sand S is placed inside the sand bag mat 2.
After filling the sand bag mat 2, both ends 2a, 2b
The inlet fitting 3 and outlet fitting 4 attached to the sand bag mat 2 are removed and collected, and both ends of the sandbag mat 2 are sealed.

By repeating such operations one after another, the sand bag mat 2 can be efficiently laid at a predetermined position on the water bottom G.

In addition, the sand bag pine 2 according to the present invention is free from erosion or scouring caused by the water force of rivers and waves on the sea surface.
It can be used anywhere, including on the seabed and on the ground in contact with fresh water.

As described above, this invention has the effect that at least one sand bag mat is laid in each process order, so that the sand bag mat can be laid efficiently and safely.

Moreover, since the structure is simple, it can be manufactured at low cost and maintenance is also easy.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the working state of fixing the outlet fitting to the bottom of the water, Figure 2 is an enlarged plan view of the inlet fitting shown in Figure 1 installed, and Figure 3 is an illustration showing the state in which the outlet fitting shown in Figure 1 is installed. An explanatory diagram of the state, Figures 4 and 5 are explanatory diagrams showing the work of pouring water into the sand bag mat and submerging it with a presser roller, and Figure 6 is an explanatory diagram showing the work in which the sand bag mat is filled with water. An explanatory diagram showing the working state at the time, Fig. 7 is an explanatory diagram when filling the sand bag mat with sand, Fig. 8 is an enlarged cross-sectional view of the entrance fitting during sand filling, and Fig. 9 is an explanatory diagram showing the sand bag mat being filled with sand. FIG. 3 is an enlarged cross-sectional view of the outlet fitting during filling. 1...Sandmattu ship, 2...Sandbukuromatsuto, 3
...Inlet fitting, 4...Outlet fitting, 5...Submersible,
7... Water supply pipe, 9... Presser roller, 10...
Sand supply pipe, W...water surface, G...water bottom, S
……sand.

Claims (1)

[Scope of Claims] 1. A method for laying sandbag pine, which comprises laying at least one sandbag pine in the following steps. (1) The process of attaching the inlet and outlet fittings to both ends of the impermeable sand bag mat on board the sand mat that floats on the surface of the water. (2) The step of installing the outlet fitting side of the sandbag mat with the outlet fitting attached at a predetermined position on the water bottom, and connecting the water supply pipe connected to the sandbag mat boat floating on the water surface to this outlet fitting. (3) Water is injected into the sand bag mat from the sand mat ship through the water supply pipe, and the sand bag ship is moved along the direction in which the sand bag mat is laid, and the sand bag is removed using a presser roller suspended from the sand mat ship. The process of laying down the sand bag mat on the bottom side of the water while expelling the air inside the mat. (4) Stop water injection when the sandbag mat is full of water, and after the sandbag mat has been laid on the bottom of the water, the inlet metal fitting attached to the other end of the sandbag mat The process of fixing the water to the bottom of the water. (5) A step of removing the water supply pipe connected to the outlet fitting of the sand bag mat, and connecting the sand supply pipe connected to the sand mat boat floating on the water surface to the inlet fitting on the other end side. (6) A step of sequentially supplying and filling the sand bag mat with a mixture of sand and water from a sand mat ship through a sand supply pipe, and at the same time pushing out the water in the sand bag mat. (7) After the specified amount of sand is filled into the sand bag mat,
The process of removing and collecting the inlet and outlet fittings attached to both ends of the sandbag mat, and sealing both ends of the sandbag mat.