琅琊山抽水蓄能电站地下厂房围岩稳定性分析

Stability Analysis on Underground Houses of Langyashan Pump-Generator Plant

采用三维拉格朗日差分法(FLAC3D),对琅琊山抽水蓄能电站施工开挖过程及支护进行了模拟。研究了地质条件较为复杂的2#机组剖面,对围岩开挖后的应力场、位移场及塑性区特征进行了比较分析,得出了一些建设性的结论。

Using three-dimensional fast Lagrange analysis Method(FLAC 3D ),the excavation and the effect of support are simulated for Langyashan pump -generator plant.For the2#unit section with comparatively complicated geological condition,the characters of stress,displacement vector and plastic zone of surrounding rock after excavation are analyzed.At last,some useful conclusions are gained.It will be significant for the construction of the project.