摘要： 在引子渡水电站溢洪道开挖过程中，预留岩锚墙发生失稳，对岩锚墙采用预应力锚索进行加固处理，由于正确的施工方法，施工各工序衔接紧密，锚固处理取得了良好的效果，为溢洪道顺利开挖赢得了宝贵的时间。

Abstract: Retained in advance rock anchored wall between the dam and the spillway of Yinzidu hydropower station had been situ-ated an un-stable condition during excavation,pre-stressed anchor cable is adopted for anchored rock wall treatment.?