Analysis and Detection of Seepage Path of Nanmenxia Reservoir Using Ground Penetrating Radar

Nanmenxia Reservoir has a significant benefit. Due to the complex geological conditions, the reservoir leakage was serious. The effect of previous anti-seepage treatment was not obvious. Finding out the leakage location and path of anti-seepage treatment was very important. Through the introduction of British Groundvue series of Ground Penetrating Radar System, the seepage channel was detected, and main leakage paths of the reservoir were looked for. By detecting drawed a conclusion that there was obvious strong leakage band in the bedrock, the previous curtain grouting belt and dam foundation seepage cut-off wall has 3m in horizontal derechtion, the local obviously broken belt developed on the right bank of the grouting trnnel. It provided technical support for design and construction of danger removal and reinforcement for Nanmenxia Reservoir.