JPS6011953Y2 - Water stop plate for building water stop walls - Google Patents

Description

[Detailed description of the invention] This invention is a water stop plate, especially a water stop wall that penetrates into the ground and continues to form a continuous water stop wall, which is more effective than the thin corrugated steel plate used in the stop construction method to block water that seeps into the ground. It's about the board.

The water stop plate of the present invention includes a water stop plate body, a plate-shaped part bent at an acute angle (from a right angle) provided on one side of the water stop body body, and a grout pipe fixed to the end face of this plate-shaped part. an engaging portion formed on the other side of the water stop plate body and bent into a square shape so as to form a space inside the water stop plate body; and a plate shape bent at an acute angle formed between an end face of the engaging portion and the plate-like body. The grout pipe is characterized in that it has a gap large enough to allow the grout pipe to be inserted therein, and a bottom plate provided at the lower end of the engaging part to close the gap, and the space has a size that allows the grout pipe to be inserted therein.

Embodiments of the conventional water stop plate and the water stop plate of the present invention will be described below with reference to the drawings.

In the past, water-stop walls were constructed by driving steel sheet piles and grouting mortar etc. into the joints.
This construction method has the drawback that the watertightness of the joints is not perfect due to problems such as dirt getting stuck in the joints.

In the present invention, as shown in Figs. 1 and 2, the water stop plate 2
One side of the plate-shaped main body 3 is bent at an acute angle (more than a right angle), and the grout pipe 1 is integrally fixed to the end face of this bent plate-shaped part by welding, and the grout pipe 1 can be inserted inside the other side. The engaging part 4 is bent so as to form a square space of the same size, and between the end face of the engaging part 4 and the plate-like main body 3, there is a space of a size large enough to allow insertion of the plate-like part bent at an acute angle (as described above). In addition to forming a gap, a level difference between the flat end surface of the engaging portion 4 on the side of the plate-shaped body 3 and the plate-shaped body 3 is also formed.

Since the water stop plate of the present invention has the above-mentioned configuration, when it is cast, first the water stop plate 2 is removed by the method of removing the water stop plate 2 from which the first water stop plate 2 was cast.
The grout pipes 1 are successively cast in such a manner that they fit into the engaging portions 4 of the water stop plates 2 cast first.

Incidentally, it is preferable that the bent ends of the engaging portions 4 and the water stop plate main body 3 be overlapped with each other as shown in the figure.

A bottom plate 5 is provided at the lower end of the engaging part 4 to prevent earth and sand from entering the engaging part 4 when the water stop plate 2 is cast.

Furthermore, when inserting the grout pipe 1 into this engaging part 4 and placing the adjacent water stop plate 2, connect a water supply vibro to the top of the grout pipe 1 and discharge jet water from the bottom of the grout pipe 1. Water stop plate 2 installed in advance
It is possible to discharge the earth and sand that has entered the engaging portion 4 by overflow.

At this time, the plate-shaped portion inserted into the meshing part 4 and bent at an acute angle contacts both the bent end of the meshing part and the water stop plate main body 3 at different points, and is clamped, and due to the elastic effect between these parts, the inside of the meshing part 4 is approximately It becomes a blockage state and a considerable water stopping effect can be expected.

After the adjacent water stop plates are installed, grout is injected into the engaging portion 4 through the grout pipe 1 to fill it.

Since the water stop plate of the present invention has the above-mentioned configuration, when it is used to construct a water stop wall, there is no risk of dirt getting stuck in the joint, and grout can be reliably injected into the joint. This has the great benefit of improving the water-tightness of the area.

[Brief explanation of drawings]

FIG. 1 is an explanatory plan view of the water stop plate of the present invention, and FIG. 2 is a perspective view thereof. 1... Grout pipe, 2... Water stop plate, 3... Water stop plate main body, 4... Engaging portion, 5
...Bottom plate, 6...Water supply pipe.

Claims (1)

[Scope of utility model registration request] A waterstop main body, a plate-like part bent at a slightly more acute angle than a right angle provided on one side of the waterstop main body, a grout pipe fixed to the end surface of this plate-like part, and the other side of the waterstop main body. an engaging part formed in a square shape to form a space inside the engaging part and further folded so that its end face wraps; A water stopper characterized by having a gap large enough to insert the plate-shaped part and a bottom plate provided at the lower end of the engaging part to close the gap, and the space having a size that allows the grout pipe to be inserted. Water stop plate for wall construction.