METHOD FOR SPECIFYING BROKEN PORTION OF WATER BARRIER LAYER AND METHOD FOR REPAIRING THE BROKEN PORTION

摘要

PROBLEM TO BE SOLVED: To easily repair the broken portion of a water barrier layer. SOLUTION: This method for repairing the broken portion 12 of the water barrier layer comprises boring the contents such as waste 13 stored around above part of the water barrier layer 11, arranging an additional electrode in the vicinity of the portion 12 to be specified, specifying the portion 12 from the potential measurement of the existing electrode for detecting a water leak and the additional electrode, forming an injection hole at the prescribed depth from the upper part of the broken portion and injecting an injecting material into the broken portion and its peripheral portions through the injection hole.