| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a secure protection effect for an underground embedded steel structure. <P>SOLUTION: In the electrolytic protection method for the underground embedded structure, a casing 27 made of steel subjected to external coating is provided around a steel structure 21 embedded underground and subjected to anticorrosion coating, and an electrolytic filler 28 is filled between the steel structure 21 and the casing 27 made of steel. The positive electrode side of the DC power source 25 is connected to the casing 27 made of steel, the negative electrode side of the DC power source 25 is connected to the steel structure 21, and the steel structure 21 is energized from the DC power source so as to perform corrosion prevention of the steel structure 21. <P>COPYRIGHT: (C)2007,JPO&INPIT |
