ANALYSIS OF GLOBAL STABILITY OF MAJI ARCH DAM BASED ON NONLINEAR FINITE ELEMENTS
(1. State Key Laboratory of Hydroscience and Hydraulic Engineering，Tsinghua University，Beijing 100084，China；2. Beijing Hydropower Investigation，Design and Research Institute，China Hydropower Engineering Consulting Group Co.，Beijing
100024，China)
Abstract：Maji hydroelectric power station with the dam height of 290 m is a major station of Nujiang river. The geological conditions and rock mechanics environment of Maji arch dam are complex；the stress and the abutment stability are significant for engineering safety. Based on nonlinear finite element analysis and deformation reinforcement theory，three dimensional elastoplastic numerical simulation of Maji arch dam has been carried out with code TFINE. The displacements，stresses and abutment forces of dam under normal working conditions were analyzed. Then the global stability and overloading analysis of dam were made based on complementary energy norm. The dam toe and faults in foundation were analyzed based on unbalanced force. The results show that the displacements，stresses and overloading capacity of Maji arch dam meet the requirement of stability；and the current construction project for Maji dam is feasible.
杨 强1，刘耀儒1，潘元炜1，邓毅国2. 基于非线性有限元的马吉拱坝整体稳定分析[J]. 岩石力学与工程学报, 2010, 29(10): 2010-2016.
YANG Qiang1，LIU Yaoru1，PAN Yuanwei1，DENG Yiguo2. ANALYSIS OF GLOBAL STABILITY OF MAJI ARCH DAM BASED ON NONLINEAR FINITE ELEMENTS. , 2010, 29(10): 2010-2016.
2010, Vol. 29 
