JPH0714413Y2 - Impermeable structure of caisson joint - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention mainly relates to a caisson for blocking water between adjoining caisson when a backfill stone is not provided on the back of the 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 device]

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]

A joint material is fixed to the landfill side of the joint between the caissons installed adjacent to each other, and a rubber water stop plate extending over both caissons is placed on the outside of the joint material so as to abut, and a part of the rubber water stop plate. And a water blocking structure of caisson joints in which a steel plate guide is fixed to each caisson so that a rubber water blocking plate can be moved.

〔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, steel sheet guides 14 held on the respective caisson 10 sides are provided on both ends of the rubber water blocking plate 15 provided so as to cover the outside of the joint material 11.

That is, one end of each steel plate guide 14 is attached to each caisson 10
To the side surface of the arrow G of the landfill side, which is fixed to the embedding plug provided in each caisson 10 by a suitable means such as using a mounting bracket 16, and inside the free other end of each steel plate guide 14. The rubber water stop plate 15 is held by movably inserting both ends of the rubber water stop plate 15 into each other.

In the water-impervious structure of the caisson joint configured as described above, the earth pressure of the reclaimed earth and sand containing waste such as earth and sand is received by the rubber water stop plate 15 in the center, and the fluctuation of the positions of the caisson 10 comrades is This can be dealt with by the deformation of the water stop plate 15 and the clearance between the both ends of the water stop plate 15 and the guides 14 made of steel plates.

Incidentally, the rubber water blocking plate 15 can be used by incorporating a wire in a mesh shape into the rubber water blocking plate 15 to increase the tensile strength, and the joint material 11 has been already used. You can use what you have.

[Effect of device]

According to the water blocking structure of the caisson joint of the present invention, even if the backfill stone is not installed on the installed caisson landfill side, the caisson joint can withstand and withstand the earth pressure of the reclaimed earth and sand. There is an effect that it is possible to keep the water shielding property of the caisson joint while sufficiently following the fluctuation.

In particular, in the present invention, with respect to the twisting of the positions of the caisson, due to the clearance between the rubber water blocking plate itself and the steel plate guides at both ends thereof, it is sufficient to cope with the fluctuation of the position of the caisson. There is an advantage that the water blocking plate made of rubber has the function of protecting the joint material while being able to follow.

Further, in the structure of the present invention, since the rubber water stop plate is simply inserted into the two steel plate guides, the mounting work of this structure is easy, and the two steel plate guides are independent from each other. The advantage is that the caisson can be installed without being affected by installation errors.

Furthermore, since earth pressure acts on the rubber water stop plates and they are only pressed against each other on both caissons, the rubber water stop plates will wander on both caissons even if there is a fluctuation error between both caissons, and both will be deformed due to rubber deformation. It is possible to prevent the joint material from being damaged by absorbing the fluctuation error of the caisson, and even if the caisson is twisted, the rubber water blocking plate will follow it and adhere to both caissons, resulting in a water blocking effect. There is no change.

[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 ……
Steel plate guide, 15 …… Rubber water stop plate, 16 …… Mounting bracket,
G: Landfill side.

Claims (1)

[Scope of utility model registration request] Claims: 1. A joint material is fixed on the landfill side of joints between caisson installed adjacent to each other, and a rubber water stop plate extending over both caisson is abutted and arranged on the outside of the joint material. A water blocking structure with caisson joints that surrounds a part of the water plate, and a steel plate guide is fixed to each caisson so that a rubber water blocking plate can move.