JPH0626585Y2 - Anti-corrosion structure of revetment structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an anticorrosion structure for a revetment structure, and more particularly to an anticorrosion structure in which the sea side of a steel pipe sheet pile is covered with a plurality of cover panels and side plate panels.

[Prior Art] Tidal and splash areas of steel sheet piles are intensively corroded by the action of the macro battery, so the sea side is individually covered with a corrosion-resistant cover panel, and mortar is filled in each cover to prevent corrosion. Construction is underway. However, in this type of panel system, the corrosion resistance of the metal joints connecting the steel pipes becomes insufficient, so recently, in the actual development of Sho 60-457.
As disclosed in No. 50, a bracket and an angle are fixed to the outer surface of a steel pipe, both ends of a cover panel are locked to this bracket, and a side plate panel for joint coating is dropped from above into the angle.

[Problems to be solved by the invention] However, although the above-mentioned anticorrosion structure is effective in new construction, it is difficult to drop the side panel from above when concrete is already constructed above as in repair work. There is. Also, if the side plate panel is bent and inserted forcefully between a pair of angles, the work becomes difficult, and even if the side plate panel is inside the angle, it is difficult to position because the hands cannot be put inside. .

The present invention has been made in view of such circumstances, and an object thereof is to provide an anticorrosive structure for a seawall structure in which a side plate panel can be easily attached between the front surface and the cover panel.

[Means for Solving the Problems] In order to achieve the above object, in the anticorrosion structure of the present invention, one end of the side plate panel is bent and fixed to the end of one cover panel, and the other end of the side plate panel is bent. It is supported inside the possible angle.

[Operation] With these configurations, first, one cover panel to which the bent portion of the side plate panel is fixed at one end is attached to the steel pipe, and the other cover panel to which the hinge-type angle is fixed is attached to the adjacent steel pipe. Next, open the angle and put the end of the side plate panel inside it, close the angle and fix it with an anchor or the like to completely cover the gap of the steel pipe.

[Embodiment] FIG. 1 shows a steel pipe sheet pile 10 to which the anticorrosion structure of the present invention is applied.
This steel pipe sheet pile 10 is constructed by connecting a plurality of steel pipes 12 driven into the sea by a T-shaped joint 14, and the land side is indicated by A and the sea side is indicated by B in the figure.

An arc-shaped FRP cover panel 16 is attached to the sea side of each steel pipe 12 by a bracket 18, and the cover panel 16 covers the tidal region and the splash region of the steel pipe 12. A seal member (not shown) for preventing leakage of the filler is attached to the lower end of the cover panel 16, and the spacer 2 is provided between the cover panel 16 and the steel pipe 12.
0 is interposed, and a flange 1 is provided on the upper end of the cover panel 16.
_6a is formed.

Below the joint 14, as shown in FIG. 4, sealing bottom plates 22 _a and 22 _b are welded. This bottom plate 22 _a , 2
_2b has a shape adapted to the joint 14 and the steel pipe surface in the vicinity of the joint, and serves as a mounting base and a bottom seal of the anticorrosion cover. In this embodiment, the two bottom plates 22 _a and 22 _b are superposed on each other at the central portion and then supported by the two rods 24 and 26 fixed to the steel pipe 12 and the joint 14. The bottom plates 22 _a and 22 _b may be attached by other means than the above, and then the entire edge thereof may be welded to the steel pipe 12, or a bolt may be provided at the lower end of the bracket 18 to have a hanging structure.

The bottom plates 22 _a and 22 _b are divided into two because the shape of the gap between the adjacent steel pipes 12 and 12 is not always constant. That is, since the required bottom plate area changes depending on the engagement state of the joint 14, the area can be adjusted in this embodiment. Therefore, the insertion hole of the bolt that is formed in one of the bottom plate 22 _a is desirably keep the long hole. When the steel pipes 12 are aligned linearly and the gap is constant, one bottom plate may be used.

Further, if the sealing problem between the bottom plate 22 _b of the tip and the joint 14, filling this portion as shown in FIG. 1 2
Fill 8. When the front end against the attachment of the bottom plate 22 _a, 22 _b are such as drops below a horizontal plane, supporting at the rod 30 to the brace-shaped as shown in FIG. 4, may be removed which after anticorrosion construction.

An angle 32 is fixed to a bracket 18 on the right side of the drawing together with a cover panel 16 by a bolt 34 and an anchor 36. The angle 32 is bendable by a hinge 33, and an anchor 36 is attached at one end as shown in FIG.
The tip of 6 is inserted into the common hole 35 of the angle 32, the cover panel 16 and the bracket 18 so as not to come off.

On the other hand, the bracket 18 on the left side in the drawing includes a side plate panel 38.
The bent portion 39 is fixed by the bolt 34, and the side plate panel 38
The other end of the abuts against the inside of the angle 32. Similar to the cover panel 16, a corrosion-resistant material such as FRP is used for the side plate panel 38, and the lower end thereof has the bottom plates 22 _a ,
supported by _b .

The order of construction of the anticorrosion structure of the present embodiment configured as described above is as follows.

First, the sealing bottom plates 22 _a and 22 _b are welded to the joint 14, aligned, and then connected to be supported by the rods 24 and 26. Also, if necessary, the bottom plate 2 may be attached by the rod 30.
2 _a and 22 _b are supported from below.

Subsequently, the bracket 18 and the side plate panel 38 are previously attached to the ends.
The steel pipe 12 on the left side is covered with the cover panel 16 to which the bent portions 39 are connected, and the bracket 18 is welded to the steel pipe 12 as shown in FIG. Then bracket 18 and angle 3
The steel pipe 12 on the right side with the cover panel 16 to which 2 is attached
And the bracket 18 is welded to the outer surface of the steel pipe 12.

Next, as shown in FIG. 3, the angle 32 is opened, the other end of the side plate panel 38 is accommodated, the angle 32 is closed, and the tip of the anchor 36 is inserted into the common hole 35. Since the tip of the anchor 36 has a wedge shape, it does not come off after insertion, and thus the side plate panel 38 is positioned inside the angle 32. When the gap between the steel pipes 12 and 12 is narrow and the side plate panel 38 is long, the right end is cut off to make the length L
After adjusting, perform the above operation.

Finally, a filler (not shown) such as mortar is injected into the cover panel 16 and the side plate panel 38 to be solidified. Since this kind of filler expands when it hardens, the side panel 38
Will be pushed outward and will come into close contact with the inner surface of the angle 32.

[Advantage of the Invention] As described in detail above, according to the anticorrosion structure of the present invention, even if the existing revetment structure has concrete above, the side panel can be easily attached to the gap between the front and the cover panel. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a steel pipe sheet pile to which the anticorrosive structure of the present invention is applied, FIG. 2 is an enlarged plan view of the vicinity of a joint, FIG. 3 is an enlarged view of a side plate panel attached state, FIG. FIG. 4 is a perspective view of the bottom plate attached. 12 ... Steel pipe, 14 ... Joint, 16 ... Cover panel, 18 ...
Bracket, 32 ... Angle, 33 ... Hinge, 34 ... Bolt, 36 ... Anchor, 38 ... Side plate panel, 39 ... Bent portion

Claims (1)

[Scope of utility model registration request] 1. An anticorrosion structure in which a seawall construction such as a steel pipe sheet pile or a steel sheet pile is covered with a corrosion-resistant cover panel, and side plate panels are connected via an angle between each cover panel, and one end of the side plate panel is provided. An anticorrosion structure for a seawall structure, which is bent and fixed to one end of one cover panel, and the other end of the side plate panel is supported inside a bendable angle.