JPH0320338Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a steel pipe sheet pile wall to be installed on a coast or a riverbank, and more specifically, to a corrosion-proofing and water-stopping structure for a joint part of a corrosion-proof steel pipe sheet pile wall.

(Prior Art) Although the joint portions of steel pipe sheet piles are coated with anti-corrosion coating in advance, their meshing portions often come into contact with each other during pouring and damage the anti-corrosion coating. In this case, the damage is generally repaired by coating the damaged parts of the underwater part, the atmospheric part, or the splash zone with a suitable coating material.

(Problems to be Solved by the Invention) However, with the above-mentioned conventional techniques, the repaired area cannot be maintained in a usable state for a long period of time.

Therefore, the purpose of this invention is to prevent corrosion.
The object of the present invention is to provide a highly reliable joint for a corrosion-resistant steel pipe sheet pile wall that can withstand long-term use in terms of water stoppage.

(Means for solving the problem) The feature of the joint part of the corrosion-resistant steel pipe sheet pile wall according to the present invention is that a filler is applied to one side of the meshing part of the joint member, and the filler is attached to the joint member so as to cover the surface of the filler. On the other hand, the anti-corrosion cover is attached by a screw member, a plug made of an elastic body is attached to the lower end of the cover, and the filler material is brought into close contact with one side of the meshing portion by tightening the screw member.

(Function) In the joint part of the anticorrosive steel pipe sheet pile wall according to the present invention, even if the meshing parts of the joint part come into contact with each other during pouring and damage the covering part, the damaged part is filled with filler. adheres closely and maintains corrosion-proofing and water-stopping functions for a long time.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2.

1 is a pipe body of a steel pipe sheet pile to be cast on the coast, etc.; 2 is an anticorrosive coating layer made of epoxy resin or urethane resin applied to the surface of the pipe body 1; and 3 is a layer on one side of the pipe body 1 that extends almost the entire length. One joint member 4 is made of a pair of L-shaped steels attached by welding or the like, and the other joint member 4 is made of T-shaped steel attached to the other side of the tube body 1 over almost the entire length by welding or the like. It goes without saying that all the joint members are coated with anti-corrosion coating as usual. 5 is a filler material, which is affected by waves on the sea side parts of joint members 3 and 4.
It covers an area of about 4m. Since the material can be thicker than the coating of the tube body, a wide range of anticorrosion materials such as mortar, epoxy resin, or petrolatum can be selected and used. Reference numeral 6 denotes an anti-corrosion cover that covers the outside of the filler 5 and is made of a synthetic resin with excellent weather resistance such as FRP or PE, or a corrosion-resistant metal. As shown in FIG. 3, a plug 6' made of a relatively easily deformable elastic body and shaped like a joint is adhered to the lower end of the anti-corrosion cover 6 to prevent the filling material from flowing out. Incidentally, the plug 6' can also be first driven in with a hammer or the like separately from the anti-corrosion cover 6. 7 is a waterproof packing, 8 is a filler material 5 via an anti-corrosion cover 6.
L
It is adapted to be screwed into a screw hole 9 drilled in a joint member 3 of shaped steel. Even if metal is corrosion resistant, it is not preferable to use metal as the bolt material because it will form a battery when it comes into contact with the tube.
It is preferable to use a synthetic resin with high strength such as FRP as the material.

Next, to explain the construction of a steel pipe sheet pile wall, first one pipe body 1 (A) is cast. Next, the other adjacent tube body 1 (B) is replaced with one tube body 1 (A) on which the lower end of the joint member 4 of the tube body 1 (B) has already been cast.
Carry it to a position where it meshes with the joint member 3 and then cast it.

A sheet pile wall is formed by repeating this operation one after another. After that, the anti-corrosion cover 6 with a plug 6' glued to the lower end is attached to the part where the coating on the sea side of the joint part is damaged in the underwater part, the atmospheric part, or the part corresponding to the splash zone, by tightening the tightening bolt 8 screwed into the screw hole 9. installation,
After that, a filler 5 such as mortar, epoxy resin, or petrolatum is poured into the gap between the joint and the anti-corrosion cover 6, and the tightening bolt 8 is tightened, so that the filler 5 is attached to the joint members 3, 4. and the anti-corrosion coating layer 2.

(Effects of the invention) Since the invention is as described above, even if a joint member coated with anti-corrosion coating is damaged during casting at its meshing part, the filler material will be in sufficient contact with the damaged part. Therefore, it is possible to improve water-stopping properties and at the same time maintain anti-corrosion performance for a long period of time.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention. Figure 1 is a cross-sectional view showing the joint part of the steel pipe sheet pile wall, Figure 2 is a detailed view of the joint part, and Figure 3 is the one attached to the lower end of the anti-corrosion cover. It is a top view which shows the shape of the stopper for preventing filler outflow. 1... Pipe body of steel pipe sheet pile, 2... Anti-corrosion coating layer,
3, 4...Joint member, 5...Filling material, 6...Corrosion protection cover, 8...Tightening bolt.

Claims (1)

[Scope of utility model registration request] In a joint for a corrosion-resistant steel pipe sheet pile wall, a filler is applied to one side of the meshing part of the joint member, and a corrosion-proof cover is attached to the joint member with a screw member so as to cover the surface of the filler, and an elastic material is attached to the lower end of the corrosion-proof cover. 1. A structure of a joint portion, characterized in that a stopper made of a solid body is attached and the filler material is brought into close contact with one side of the engaging portion by tightening the screw member.