桐柏抽水蓄能电站地下洞室群开挖的三维非线性仿真计算

对桐柏抽水蓄能电站地下洞室群开挖过程进行了三维非线性有限元计算和分析，得到了各工况下洞室开挖后围岩的变形和应力状态以及锚杆的应力数值，同时分析了塑性区的发展过程和分布范围。从而全面地了解洞室在施工过程中的变形和受力特征．掌握了洞室开挖过程中的稳定性特征。计算结果不但为桐柏抽水蓄能电站地下洞室的设计、监测和施工提供有价值的研究成果，具有重要的参考价值，而且所采用的方法和计算策略，对于同类工作也具有较大的参考作用。

3-D Nonlinear Emulation Analysis for the Excavation of Undergroud Caves to Tongbai Storage Energy Power Station

3-D Nonlinear Excavation Analysis to Underground Caves Excavation emulation analysis is done to Tongbai storage energy power station with pumping water. Faults around are considered, 3-D nonlinear analysis is served to simulate the actual conditions in the area for the first time. Excavation emulation is achieved through the Death function in ANSYS programs. Several regions are sued to emulate earth stress. Valuable evaluations are gained through analysing the displacement, stress and plastic area of surrounding rock.