关键词: 土石坝, 渗漏, 渗流稳定性

Abstract: The auxiliary dam of Taoyuan hydropower station is a compacted earth rockfill dam. The main filling material is natural gravel with poor grading. High pressure grouting wall is adopted as seepage cut-off wall. After impoundment, seepage is found at the connection area of dam foot and concrete gate dam. Combined with seepage monitoring data, by analysis of seepage failure modes, the seepage stability of dam is studied.

Key words: earth rockfill dam, seepage, seepage stability