Abstract: Seepage analysis of Hongshiyan landslide dam remediation project// by ZHOU Miao, YIN Yuehua and CAI Chengyan// Yunnan Nengyang Water Conservancy and Hydropower Survey and Design Co., Ltd.
Abstract: The seepage monitoring data is an important basis for judging the stability of landslide dam.
By real-time monitoring and analyzing the seepage monitoring data, the seepage pressure of dam body can be understand, thereby the effect of anti-seepage wall can be evaluated, which helps to timely dis ⁃ cover and deal with the leakage problem of dam body, and prevent serious consequences such as dam in ⁃ stability or dam failure caused by leakage. Based on the seepage monitoring data of Hongshiyan land ⁃ slide dam, this paper analyzes the seepage changes and anti- seepage effect of the landslide dam from the aspects of seepage water level, infiltration line and seepage stability. The results show that the corre ⁃ lation between seepage water level and reservoir water level is stable, and no seepage deformation is ob ⁃ served in the dam. Therefore, the seepage control system of anti-seepage wall and grouting curtain ad ⁃ opted by Hongshiyan landslide dam can well meet the anti-seepage requirements, and the dam project operates safely.

Key words:  , reservoir water level, seepage water level, seepage stability, infiltration line, landslide dam

摘要： 渗流监测数据是判断堰塞体稳定性的重要依据。通过实时监测并分析渗流监测数据，了解坝体内部的渗 透压力，从而评价防渗墙的防渗效果，有助于及时发现并处理坝体内部的渗漏问题，防止因渗漏导致坝体失稳或 溃坝等严重后果。本研究采用红石岩堰塞体渗流监测资料，从堰塞体渗压水位、浸润线、渗流稳定性等方面分析 了堰塞体渗流变化及防渗效果。结果表明，堰塞体渗压水位与库水位相关关系稳定，大坝未见渗透变形情况，说 明红石岩堰塞体采取的防渗墙+帷幕灌浆的渗控体系可以很好地满足堰塞坝防渗要求，堰塞体工程整体运行安全。

关键词: 库水位, 渗压水位, 渗流稳定性, 浸润线, 堰塞体