摘要
采用三维非线性有限元分析方法,结合泸定水电站调压室的开挖,模拟了大型长廊阻抗式调压室开挖和支护的施工过程。利用改进的锚杆单元模拟支护结构中锚杆的作用,分别从围岩稳定和衬砌结构的受力特性两个方面对调压室进行了分析,给出了围岩支护和结构设计的基本分析方法,可为类似工程提供借鉴。
By using the three-dimensional non-linear finite element method and considering the excavation of surge tank fro Luding Hydropower Station, we simulated the construction process of excavation and support of large-sized long corridor of surge tank. Amended bolt element in FLAC was used to simulate the bolt function of anchoring bar in the support structure to analyze the surge tank from the force features of surrounding rock stability and lining structure. Then the basis analysis method of surrounding rock support and structure design is given, which could provide the reference for the similar project.
出处
《水力发电》
北大核心
2008年第8期28-30,99,共4页
Water Power
关键词
阻抗式调压室
数值分析
非线性分析
impedance surge tank
numerical analysis
non-linear analysis
