关键词: 水下检查, 面板, 渗漏, 缺陷处理

Abstract: During the underwater inspection of Jiemian hydropower station, an obvious leakage defect was found at the connection between dam face slab and right guide wall of spillway. The ink trace showed that there was obvious leakage with certain absorption capacity. After analyzing and studying the monitoring data, the reservoir water level was lowered to recheck the dam face slab. Based on the inspection results, corresponding repair scheme was formulated, and good repair effect was obtained, worth reference for similar projects.

Key words: underwater inspection, face slab, leakage, defect treatment