| 摘要 |
PURPOSE:To raise the corrosion resistance of a steel sheet pile by a method in which a powdery granular resin is melted and adhered to the surface of the steel sheet pile with couplers to form a covering layer in such a way as to make the thickness of the covering layer on the fitting portion of coupler thinner. CONSTITUTION:A powdery granular resin (e.g., polyethylene, polypropylene, polyester, etc.) is melted by heating and adhered to the surface of a steel sheet pile 1 to form a resin covering layer 2 in such a way that the thickness of the covering layer 2A on the fitting portion of the coupler 1A is made thinner than the resin covering layer 2B on the other portion. A desired thickness of covering layer can thus be formed even on curved surface of steel sheet pile with various curved faces and the covered layer can also be formed even on the fitted portion of the coupler, thus greatly improving the corrosion resistance of the steel sheet pile. |
