JPS6241808A - Preparation of sand bag for structure - Google Patents

Abstract

PURPOSE:To produce a sand bag efficiently, by spraying sand and water in order into the permeable slender bag. CONSTITUTION:When a pump 4 is driven, then sand and water in a hopper 5 are sprayed from a nozzle 3 into a permeable slender bag 1 via a hose 2. Then, water leaks outside the bag 1 and is discharged, and sand only is left in the bag 1. After that, the hose 2is stretched on the side of the pump 4 little by little. At the same time, sand and water are sprayed into the bag 1, and the bag 1 is filled up with sand in order. Besides, after the hose 2is taken out of the bag 1, the opening of the bag 1 is closed to form a sand bag.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing sandbags for structures, and is suitable for use in materials for dividing water bodies, jetties, etc. in the sea, lakes, rivers, etc., or for preventing the diffusion of pollutants in these water bodies. The present invention relates to a method for manufacturing sandbags used as materials for weights used in underwater fences used to prevent water damage, and equipment used to indicate divisions such as fishing grounds and waterways.

BACKGROUND OF THE INVENTION In oceans, lakes, rivers, etc., water areas are divided to form artificial beaches and artificial beaches for artificial aquaculture, and jetties, seawalls, etc. are constructed. These require structures that separate bodies of water or accommodate waves and water pressure. Conventionally, these structures were called L1! Sandbags are also used for construction, but this requires manpower and is time consuming, so sandbags are also used to take advantage of the advantage of speedy construction.

This sandbag is made by filling a long thin bag made of rubber or other material with sand.The manufacturing method is to pump sand and water into the long thin bag at the same time, then drain the water from the tip and leave only the sand. It is to be filled in.

This method of manufacturing sandbags does not require any manpower and can be easily constructed on-site, resulting in significantly shorter construction times and lower costs than the conventional method of piling up sandbags.

However, when trying to make a sandbag that is several tens of meters long, for example, the water must be drained only from the tip of the bag, so as sand gradually fills the bag, the blowing pressure from the pump must be increased. It is not possible to drain the water, and in order to drain the water efficiently, the pressure of the air outlet 7 is increased and a lot of time is required for draining the water.

Problems that the invention aims to solve As mentioned above, the conventional 4J tohanog for structures requires a high-pressure pump to manufacture, and the manufacturing method requires a long time to drain water. There is a problem,
Improvement was desired.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a structure sunscreen characterized by having at least two stages of sequentially blowing sand and water into a water-permeable elongated bag. 1- A method of manufacturing a bag is provided.

The present invention also provides a method for manufacturing a sand hang for a structure, which comprises at least the step of sequentially blowing sand, water, and air into a water-permeable elongated bag, either together or separately. be.

64λ and water or sand and water and air are blown into a water-permeable elongated bag, so the blown water and air are
At this point, IS is expelled from the elongated bag. Also, by blowing air, the sand and water are mixed well and the elongated bag is expanded.

Embodiment Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

In the figure, ■ is an elongated bag made of a water-permeable material such as a durable textile product, and one end of the bag is closed. Also,
2 is a flexible port for introducing sand and water, and has an outlet 3 at its tip, and its base end is connected to a pump 4. This pump has a hopper 5, which The sand and water collected in the pump are discharged by the pump 4 to the hose 2.
The water and sand blown out in this way are sequentially filled from the tip, but the water leaks out through the elongated bag 1. It is then ejected, leaving only sand inside.

Next, pull port 2 a little with pump 4, blow out the sand and water in the same way as in step 1, and drain the water outside. The sand bag is completed by sequentially filling sand into the elongated bag and finally removing the hose 2 from the elongated bag and closing the opening.

Such sandbags may be created in advance and placed at the construction site, but it is also possible to install 14 thin bags 1 at the construction site and then fill them with sand as described above. good.

When the sun hangs created in this way are used, for example, as water area partitioning material for artificial beach nourishment in the sea, sea sand gradually accumulates on the top of the sandbag, as if the sandbag was the core of the meat. As II'j follows, it becomes larger and functions better as a partition frame. This sand bag is used not only as a partition material when creating an artificial beach, but also as a material for structures such as sea walls and jetties.

When used as a material for such structures, unlike conventional sandbags that do not use rubber or the like, it is preferable because it does not introduce foreign matter into water bodies and pollute the environment.

In the above, I tried to cut the hose directly from the long and narrow bag, but when the long and narrow bag is long and folded, it is not easy to remove the hose, especially at the bends. As shown in FIG. 2, an outer tube 6 made of a flexible material such as plastic may be provided on the outside of the hose 2, and this may be filled with air or water to form the hose 2 into a circular tube shape. This makes blowing out sand and water and filling it with sand easier.If you want to wind up the outer tube together with the hose when removing the port, remove the air or water from the tube and roll it up one after the other. In order to prevent this from happening, put something like a safety valve on the tip of the outer tube, and squeeze the outer tube at the part to be rolled up.If the air or water is discharged from this safety valve, the part to be rolled up will be in a folded state. At the same time, the portion of the outer tube that is not rolled up can be maintained in an expanded state.

In addition, although sand and water were blown out from the hose in the above example, sand, water, and air may also be blown out.In this case, it is also good to blow out all of these together, but by opening the tip of the outer tube in Figure 2, , C is also good, in which air is supplied from the proximal end and the air is blown out. When air is blown in this way, the elongated bag expands to its original shape, which is further expanded as the air bubbles temporarily block the water passage hole of the water permeable elongated bag.
In particular, it facilitates the pouring of sand and water into a long, folded bag and the removal of the port, and the sand and water are thoroughly mixed to allow the work to be carried out in a circle rf%.

In the above, the elongated bag was made of water-permeable IIA$41, but the third
As shown in the figure, the elongated bag can also have a double structure of an elongated bag l made of a water-permeable material similar to the above and an outer long bag 7 made of a water-impermeable material such as rubber or plastic. That is, the long and narrow bag 1 is sequentially filled with sand in the same manner as described in "-", and the outer long bag 7 is sequentially covered from the outside from the place where the filling is completed. In this case, the foreign minister's long bag 7 may not have a complete circumference, but a part of it, for example, a sand hang may be installed (
Make sure to cover the entire area except for the part that is in contact with the ground.
(It is also good. In this way, the sand filled inside will not leak to the outside due to the elongated bag being torn, deformed or altered in quality, or generating a strong water flow.

The San 1 baths created in this way are also used for artificial beach nourishment, seawalls, etc. as in Item 1-, but any of the San I Hasogs in Item F are also used for corner construction, repair, artificial fish reefs, etc. can. In addition, the outer IGIll 114 bag that uses a water-permeable material can also be used to filter water by installing it at a spillway when draining surplus water from a dredging area or at a water intake of a dam. In addition, any of the above types can be used for example when dredging work is carried out in water bodies, trenches (aquaculture V
It can also be used as a weight for underwater fences used when dividing polluted waters to prevent the spread of turbidity when performing excavation to create Nj). These underwater fences include, for example, what is called a Solo-I fence and what is called a submersible fence; the former is used by floating in the water, and the latter is used by being moored to the bottom of the water. be. Both consist of a float, a net or sheet suspended from the float, and a weight.
You can use two pairs of bags on this weight.

In addition, in the 9-Ndopasog production method described in -12, the ports were taken out from the elongated bag one by one, but on the other hand, each time the elongated bag became clogged with sand, the elongated bag was moved and filled with sand one after another. It is also possible to move the pose and the elongated bag as appropriate.

Effects of the Invention -1: As explained, the present invention blows sand and water or sand and water and air into a water-permeable elongated bag, oozes out the water, and discharges the water or water and air. Since the sand is filled sequentially, the water can be discharged at the point where water and sand are sprayed. There is no need for a high-pressure pump as a means of blowing out water, and water drains quickly, so the first stage of on-site construction can be significantly shortened.
For example, if water and sand are blown out using a hose connected to a pump, and the hose is removed little by little each time sand is filled, water pressure is not required to drain the water, as is the case with conventional methods. A long-distance Zandhang can be created in the same way as a short one. Moreover, if the bag is filled with sand and then covered with a water-impermeable long bag, it is possible to create a sandbag in which 6'1 g of sand does not leak out. In addition, those using only water-permeable elongated bags can generally reduce the cost of 4A*1.

Further, by blowing out air together with sand and water, the elongated bag is kept in an expanded state, and the sand and water are mixed well, so that the work can be carried out in a uniform manner.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the method of one embodiment of the present invention, Fig. 2 is an explanatory diagram showing the method of the second embodiment, and Fig. 3 is an explanatory diagram showing the method of the third embodiment. It is. In the figure, l is an elongated bag, 2 is a pose, and 3 is a speech bubble [1, 4
5 is a pump, 5 is a hopper, 6 is an outer tube, and 7 is an outer phase bag.

Claims (2)

[Claims] (1) A method for manufacturing a sandbag for structures, which comprises at least the step of sequentially blowing sand and water into a water-permeable elongated bag. (2) A method for producing a sandbag for structures, which comprises at least the step of sequentially blowing sand, water, and air into a water-permeable elongated bag, either together or separately.