牙根水电站右岸1号松动体削坡减载方案研究

Study of cutting slope and unloading scheme for No.1 loose rock mass in the right bank of Yagen hydropower station

通过对松动体地质情况及滑移模式的研究,以蓄水+地震工况来确定牙根水电站右岸1号松动体的削坡减载方案,结果表明,松动体开挖平台高程为2565 m,开挖边坡最好选用预应力锚索支护。

Through studying the qeological conditions of loose body and ship model, the water and earthquake condition at the same time is used to confirm the cutting slope and unloading scheme for No. I loose rock mass in the right bank of Yagen hydropower station. It shows the excavation platform height for No. 1 loose rock mass is 2 565 m and the prestressed anchor support scheme is the best choice for the excavation slope.