JPS6230100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves spreading out a thick asphalt-based sheet based on a bulky non-woven fabric made of synthetic fibers in the shape of a wrapping cloth, and disposing debris, sand grains, gravel, crushed stones, concrete blocks, etc. in the center of the asphalt-based sheet. By heating and stacking the four end faces while covering the blocks, a block is obtained that forms a rectangular cube with an appropriate side and thickness, and by stacking these blocks, a vertical wall is constructed. Used for creating retaining walls, reservoirs, waterways, etc.

Conventionally, concrete has been used to construct reservoirs, reservoirs, fishponds, etc., but this involves creating formwork according to their shape, and then performing reinforcement work. , concrete is poured in, hardened and cured, and the formwork is removed to obtain the desired object.

Concrete ponds and the like thus obtained must be left for an even longer period of time to remove the sludge if they are to be used as fish ponds because alkali remains in the concrete. Therefore, many people are required, the work is complicated, the construction period is long, and the cost is high. In addition, it is difficult to avoid the occurrence of dry cracks due to the evaporation of excess water in the concrete, and there are still defects such as water leakage.

For this reason, it is possible to directly apply the
A method of creating ponds and the like by laying out synthetic rubber sheets, synthetic resin sheets, or asphalt sheets and joining the ends of the sheets has come to be used.

When the synthetic rubber sheet is a synthetic resin sheet, the ends are joined by a method such as an adhesive containing a solvent, a self-adhesive layer, or welding. When using adhesives, it is difficult to adjust the degree of solvent volatilization and the timing of bonding work appropriately, and even when using a self-adhesive layer, the thickness of the sheets is usually around 1 mm, making them thin and Due to the unevenness of the base, the end portions are only partially joined. The same is true in the case of welding, where there are scattered areas where adhesive strength is lacking, leaving the problem that water stoppage is incomplete.

Furthermore, conventional asphalt sheets are made of thin synthetic fiber nonwoven fabric, but these materials have a thickness of around 1 mm, are rigid and lack stretchability, and even if several sheets are laminated together, they cannot be used. Even in such cases, there is a problem that the concrete cannot follow the large deformation caused by the subsidence of the plain trench foundation caused by the water storage pressure, and it may break. In addition, in order to create a block like the one of the present invention using such materials, it becomes necessary to similarly laminate them, which requires a lot of trouble and effort, and also has the problems mentioned above. There are many difficulties in configuring this, making it impossible.

The asphalt sheet used in the present invention has a large thickness of 3 to 4 m/m, a wide width (2 m), excellent stretchability and impact resistance, and easily conforms to the shape of the object, and the edges are not joined to other sheets. By lightly heating the surface with a propane gas burner, etc., without using an adhesive, the entire overlapping part of the end part is welded together with the molten asphalt, and the two are completely integrated. There are no such defects.

However, due to its nature, this asphalt sheet does not have the rigidity of metal plates, concrete plates, or wall materials, so it cannot by itself resist the earth and sand and other lateral pressure on the wall of the embankment of a plain excavation. It was difficult to do so, and it was necessary to form a so-called sloping surface by sloping the wall surface before pasting it up. Therefore, in order to secure the required amount of water storage, it is necessary to excavate a wider area than when the wall is formed vertically, and the amount of soil to be dumped will increase, albeit slightly. There were some problems with the selection of materials, transportation work, etc.

The present invention involves folding and wrapping three of the four ends of the thick asphalt sheet, heating and joining the overlapping margins of the three ends, and making an envelope-like body with one side open. After filling the excavated earth and sand into it on site, the remaining end is sealed in the same way.
He succeeded in creating blocks with the required thickness and sides and stacking them to create reservoirs, waterways, etc. that form vertical surfaces.

In this way, according to the method of the present invention, the amount of work involved in transporting and dumping excavated earth, sand, etc. is reduced, and furthermore, the excavated earth, sand, etc. is embanked behind the wall where blocks are piled up, and an embankment is formed. It may be possible to eliminate the need for dumping by using most of the earth and sand and other materials.

To stack the blocks of the present invention, all known methods of stacking blocks can be applied, and since the blocks have good conformability to the base and each other, and are joined vertically and laterally with asphalt, it is possible to stack blocks using conventional concrete blocks. Joints are formed without mutual adhesion using adhesives such as mortar when stacking up joints, eliminating the need for joint treatment, and preventing breakage and water leakage at the joints, resulting in a stable vertical surface.

Blocks stacked in this way can be used as water-stop walls as they are because the joints have water-stop properties. By joining with the asphalt sheet laid on the surface, a pond or other structure with a smooth surface and more perfect water-stopping performance can be obtained.

Furthermore, it is also possible to fill or embank the back of the stacked blocks with excavated earth and sand, and form a slope on the back to make effective use of the earth. An asphalt sheet can be pasted from the top of the blocks to this slope. This prevents slope collapse due to overflow of rainwater during floods.

The blocks of the present invention are used for constructing reservoirs, reservoirs, wastewater treatment ponds, intake channels, drainage channels, etc., as well as for constructing river banks, retaining walls, and protecting slopes.

In addition, rainwater and groundwater are used when constructing housing lots, such as creating simple forest roads, side roads, or forming terraces, filling road depressions, guiding rainwater to drainage ditches by installing it on the shoulders of roads, and improving soft ground. It can also be used as a countermeasure. Furthermore, it is easy to construct fish reefs by constructing quays with wave-dissipating and buffering effects at places such as remote islands that make it easier for ships to berth, and by placing them in shallow waters.

The asphalt block of the present invention and the method of manufacturing the asphalt block will be explained with reference to the accompanying drawings. Fig. 1 is a side view of the block B of the present invention, and A shows the thick asphalt sheet to be encapsulated. FIG. 2 is a cross-sectional view of block B, and C is the bagged earth and sand, rubble, concrete blocks, crushed stones, and other waste. Moreover, FIGS. 3 and 4 show the manufacturing method, and show the diagonal line 1 of a thick asphalt sheet A cut into squares.
Form a fixed square on top. The end portion 3 is bent along the fold line 2 as shown in FIG.
(see figure). Then, earth and sand or crushed stone C is filled into the bag through this open part, and the lid 4 is closed and bonded to form the block B shown in FIG. 1.

In this way, the blocks of the present invention can be easily molded, stacked using known methods, and do not require joint treatment of the blocks, and are stable without breakage or water leakage at the joints. It is believed that there are great industrial benefits, as a vertical surface can be obtained, the work of dumping soil excavated on-site, etc. can be reduced, and it can be used effectively, and can be used for a wide range of purposes and applications, and can be expected to have sufficient effects. .

Example: A rectangular asphalt sheet with a thickness of 4 m/m and a size of 1 x 1 m is folded along the crease 2 to form a certain rectangle on the diagonal line 1, and the three ends 3 of the sheet are overlapped to form a margin 3'. Then, they were lightly heated and pressed together using a propane gas burner to obtain an envelope-shaped body with one end remaining. Next, earth and sand were filled from the open part of this envelope-shaped body, and the remaining unattached ends were joined in the same manner to create a cubic block with a thickness of 8 cm and a size of 45 x 45 cm.

[Brief explanation of the drawing]

FIG. 1 is a side view of block B of the present invention;
FIG. 2 shows a sectional view of block B. 3 and 4 show a method of manufacturing block B. FIG. 1...Diagonal line, 2...Fold line, 3...End part, A
...Thick asphalt sheet, B...Block.

Claims (1)

[Scope of Claims] 1. A thick asphalt sheet made of bulky nonwoven fabric is cut into squares, and the three ends of the rectangular asphalt sheet are heated, crimped, and joined so as to form a certain square on the diagonal line. A method for manufacturing a block that covers earth and sand by forming an envelope-like body, filling it with earth and sand or crushed stone from one open part, and sealing the unattached part. 2. A block made by cutting a thick asphalt sheet made of bulky non-woven fabric into squares and covering the rectangular asphalt sheet with earth and sand.