| 摘要 |
PROBLEM TO BE SOLVED: To provide a heavy-duty corrosion-resistant steel sheet pile which suppresses spread of separation of coating from a coating edge of a fitting joint portion. SOLUTION: According to the heavy-duty corrosion-resistant steel sheet pile which is set by connecting a plurality of steel sheet piles 1 together via their fitting joints, the steel sheet piles 1 are arranged such that base metal portions thereof adjacent to each other via the joint portions, are aligned with each other after fitting of the joint portions to each other. In the heavy-duty corrosion-resistant steel sheet pile, coating remaining stress around a claw is smaller than that of a conventional steel sheet pile. Therefore separation of the coating, beginning from a corrosion area at the fitting portion hardly occurs, and an influence of ocean waves is small, which leads to less spread of separation of the coating, to thereby continue a corrosion-resistant effect over a long period of time. COPYRIGHT: (C)2006,JPO&NCIPI
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