针对常规预应力锚杆在较薄的岩墙内无法锚固的问题,提出在小湾水电站左右岸坝肩抗力岩体地质缺陷处理中使用对穿张拉锚杆。对穿张拉锚杆穿透岩墙,注浆后两端随即同时张拉,解决了较薄岩墙支护难的问题。仪器观测及声波检测结果表明,对穿张拉锚杆在小湾水电站抗力体工程的使用是成功的。 Aiming at the problem that conventional prestressed anchors can not be anchored in thinner rock walls, a pair of tensioned anchors are proposed to deal with the geological defects in the abutment abutment rock mass at the left and right of Xiaowan Hydropower Station. The piercing bolt is used to pierce the rock wall, and the two ends of the grouting bolt are simultaneously tensioned at the same time, which solves the difficult problem of supporting the thin rock wall. The results of instrumental observations and acoustic tests show that the use of tensioned bolts in Xiaowan Hydropower Station is successful.