抄録
The suspicion of damage to seepage control sheets used at final disposal sites, in recent years, is a serious social problem. Since the conditions in a landfill change with the progress of landfilling, it is necessary that the detection of the damage be free from the effects of such changes. Based on a method where electrodes placed on a seepage control sheet detect damage by sensing the distribution of electric potentials caused by the electric currents which travel the damaged portions, the authors developed a method to locate the position of damage by comparing measurement data with the distribution of electric potentials inside a landfill which is obtained from computer-aided finite element method analysis, and tried this method on a model disposal site. It was found that this method is effective for detecting damage.
