Abstract:The caving mechanism is simulated by FEM and DFEM to simulate ground arch respectively based on the inlet and outlet of the diversion tunnel of Ludila hydropower station. It is close to actual situation by combining the characteristics of caving load of loose medium and FEM which can consider the interaction of supporting structure and surrounding rock. The results show that the caving mechanism of underground cavern of loose medium with shallow overburden in lower stress area is simulated well by proposed DFEM,and it is close to practical engineering and important to the design and analysis of engineering.
李宁,朱才辉,姚显春,何敏. 一种浅埋松散围岩稳定性离散化有限元分析方法探讨[J]. 岩石力学与工程学报, 2009, 28(S2): 3533-3542.
LI Ning,ZHU Caihui,YAO Xianchun,HE Min. STABILITY ANALYSIS OF LOOSE SURROUNDING ROCK WITH SHALLOW OVERBURDEN BY A DISCRETIZATION FINITE ELEMENT METHOD. , 2009, 28(S2): 3533-3542.