| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the installation number of sacrificial anodes arranged for preventing corrosion in a submerged part of a harbor steel structure, and to effectively prevent corrosion in a tide band of the harbor steel structure. <P>SOLUTION: This method for preventing corrosion comprises arranging electrodes with necessary spacing, for the submerged part B of a steel sheet piling 2 having at least one submerged part B which is submerged in seawater, forming an anti-corrosive precipitated film 11 on the surface of the submerged part B of the steel sheet piling 2 by passing a direct current through the electrodes, and the fixing the sacrificial anode on the surface of the submerged part B of the steel sheet piling 2, to restore the anti-corrosive precipitated film 11 by a cathodic protection method. <P>COPYRIGHT: (C)2003,JPO |
