Numerical Analysis on Stability of Surrounding Rock  Masses of Deep Underground Powerhouse Caverns  under Condition of Excavation Unloading

HE Xiaogang， XU Nuwen， DAI Feng， ZHU Yongguo， XIAO Peiwei， LI Biao

Tunnel Construction . 2014, (增刊): 145 -452 . DOI: 10.3973/j.issn.1672-741X.2014.S.024