POLYETHYLENE-COVERED CORROSION PROTECTED STEEL SHEET PILE BULKEHAD WALL AND CORROSION PROTECTIVE METHOD FOR STEEL SHEET PILE BULKHEAD WALL

摘要

PROBLEM TO BE SOLVED: To provide a corrosion protected steel sheet pile bulkhead wall and corrosion protective method for steel sheet pile bulkhead wall capable of relatively easily constructing after the field construction of a steel sheet pile at a low cost and preventing the penetration of rust from the end part to keep the reliability of corrosion protection over a long period. SOLUTION: In the state where the joint parts 2 of steel sheet piles 1 subjected to corrosion protection by a polyethylene film 3 are mutually fitted, a water hardenable resin such as water hardenable epoxy resin is filled in the recessed part of the joint fitting part. A polyethylene sheet 5 is put to cover the non-covered part of the steel sheet piles 1 having the filler 4 filled therein. The end part of the polyethylene sheet 5 is welded to the surface of the polyethylene film 3 by use of a commercially available ultrasonic welder 7 to form a continuous polyethylene corrosion protective layer on the surface of the steel piles 1.