Comprehensive analyses lead to the following conclusions: the rock condition is lead for excavating chambers in the right bank underground powerhouses of Xiangjiaba Hydro-power Station; surrounding rock is generally stable and unitary stability can be gua
Comprehensive analyses lead to the following conclusions: the rock condition is lead for excavating chambers in the right bank underground powerhouses of Xiangjiaba Hydro-power Station; surrounding rock is generally stable and unitary stability can be gua
综合分析后认为：向家坝水电站右岸地下厂房洞室群的成洞条件较好，围岩基本是稳定的，经过锚喷支护后整体稳定是有保证的。