JPH0647953Y2 - Impermeable structure of caisson joint - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a caisson that mainly blocks water between adjacent caisson when backfill stones are not provided on the back of the installed caisson revetment. It relates to the water-impervious structure of the joint.

[Conventional technology]

Conventionally, in revetment when industrial waste is used as landfill material, as shown in FIG. 2, after the caisson 2 is sunk on the foundation stone 1 installed on the seabed and the filling sand 3 is filled, By providing backfill stones 4 on the landfill side, it is possible to withstand the earth pressure of the landfill sand 5, and especially in the waste revetment, water impermeability is often required and they are installed side by side. On the landfill side of the joint between the caisson, the joint material was fixed and the backfill stone was installed.

However, due to the shortage of waste disposal sites in recent years, it becomes necessary to increase the capacity for receiving waste such as earth and sand. It is being considered to put it on the back of the seawall.

However, just by providing a water stop plate such as a joint material in the joint between the caisson as in the conventional case, the water stop plate will come off due to the earth pressure of the waste such as earth and sand to be put in, and the water cannot be blocked. There is a problem.

[Problems to be solved by the invention]

The present invention was made in order to solve the above-mentioned conventional problems. Even if a backfill stone is not provided, the present invention can withstand the earth pressure of wastes to be landfilled and the position of adjacent caissons can be changed. The problem to be solved is to provide a water-impervious structure with caisson joints that can maintain the water-impermeable property.

[Means for Solving the Problems]

As a means for solving the above-mentioned problems, the water blocking structure for caisson joints of the present invention fixes the joint material on the landfill side of the joint between the caisson installed adjacent to each other, and covers the outside of the joint material. It is constructed by fixing both ends of a rubber water blocking plate provided with an arched steel plate in its central part to each caisson, and receives the earth pressure of landfill sand with the arched steel plate, and adjacent caisson Positional fluctuations of the rubber water stop plate at both ends and the arched steel plate part correspond,
Further, the structure in which the steel plate and the rubber water blocking plate are integrated to maintain the water impermeability.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a water blocking structure of a caisson joint according to an embodiment of the present invention.

First, as shown in FIG. 1, a joint material 11 is fixed to the caisson 10 with tacks 12 or the like on the landfill side indicated by an arrow G in the figure of the joint 10A between the seawall caissons 10 which are installed adjacent to each other. And, if necessary, joint material 11 of joint 10A between each caisson 10
The joint material 13 for wave pressure resistance is arranged on the sea side indicated by the arrow S.

Next, the both ends of the rubber water stop plate 15 in which the steel plate 14 formed in an arch shape covering the outside of the joint material 11 is attached to the center with studs 19 or the like is provided on the side surface of each caisson 10 on the landfill side of the arrow G. for,
Mounting brackets for embedded plugs provided in each caisson 10 in advance
It is fixed by appropriate means such as using 16.

In the water-impervious structure of the caisson joint with the above configuration, the earth pressure of the landfill sand containing waste such as earth and sand is
Received by resisting with 14 semi-circular arch structures,
The position variation of the caisson 10 can be dealt with by the deformation of the arch portion of the steel plate 14 and the rubber water blocking plates 15 provided at both ends thereof.

Incidentally, the rubber water stop plate 15 can be used by increasing the tensile strength by incorporating a wire in the inside thereof into a mesh shape, and the above-mentioned target material 11 has already been used. You can use what you have.

[Effect of device]

According to the above-mentioned caisson joint water-impervious structure of the present invention, even if a backfill stone is not provided on the landfill side of the installed caisson, it can withstand and withstand the earth pressure of the landfill soil and the position of the caisson comrades. There is an effect that the water shielding property of the caisson joint can be maintained while sufficiently following the fluctuation of.

In particular, in the present invention, the twist at the positions of the caisson can be absorbed by the rubber water stop plates provided at both ends and the arch portion of the steel plate, and the arch portion of the steel plate has a function of protecting the joint material. There is an advantage.

In the structure of the present invention, the arched steel plate and the rubber water blocking plates provided on both sides of the arched steel plate are all in an integrated structure,
Since both ends are fixed to each caisson, there is also an advantage that it is excellent in water-blocking performance as a whole.

[Brief description of drawings]

FIG. 1 is a perspective view showing a water blocking structure of a caisson joint in an embodiment of the present invention, and FIG. 2 is a side sectional view for explaining a conventional caisson revetment. 10 ... Caisson, 10A ... Joint, 11 ... Joint material, 14 ... Arched steel plate, 15 ... Rubber water stop plate, 16 ... Mounting bracket, G ... Landfill side.

Claims (1)

[Scope of utility model registration request] 1. A rubber water stop plate having a joint material fixed to the landfill side of joints between adjacent caissons, and an arched steel plate covering the outside of the joint material provided in the central portion of the joint. Water-impervious structure with caisson joints with both ends fixed to each caisson.