Abstract: High density resistivity method can reveal inside information of a dam which takes a short time and low cost. At the same time, the method will not cause damage to the dam. For this reason, it was to detect the cracks on downstream slope of Gaolehan dam. Combined with dam monitoring data and site inspection information, the crack cause of downstream slope was analyzed and identified, and some remedial measures were given.

Key words: high density resistivity method, dam, leakage, detection

摘要： 高密度电法检测方法不需要对大坝进行开挖破坏，成本低、时间短，能够揭示大坝内部信息。为此采用高密度电法对高勒罕水库土石坝下游坡的裂缝情况进行检测，同时结合监测资料和现场巡查等信息，分析判断大坝下游坡的开裂原因，并提出处治措施。

关键词: 高密度电法, 大坝, 渗漏, 检测