大岗山水电站地下洞室群施工过程数值模拟分析  

Numerical Simulation Analysis of the Excavation Process of Dagangshan Underground Carven Group

作　　者：邬凯[1] 盛谦[1] 张勇慧[1] 

机构地区：[1]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071

出　　处：《水力发电》2009年第7期20-23,共4页Water Power

基　　金：国家自然科学基金重大研究计划项目(90715042)

摘　　要：根据大岗山水电站地下厂房的工程地质条件和开挖设计方案,采用二维弹塑性有限元法对地下厂房洞室群施工开挖过程进行了数值模拟计算,分析了洞室群的开挖位移场、应力场和塑性区分布特征,研究了开挖过程中预埋测试孔的变形特征,为工程的开挖支护和监测设计提供参考依据。Based on the engineering geological conditions and excavation design of the underground power house in the Dagangshan Project, 2D elastoplastic finite element method was applied to simulate on the excavation process of underground carven group. The distribution character of the displacement field, stress field and plastic zone in the excavation process were studied,and the deformation character of the sliding micrometer monitor boreholes were also analyzed.These works can serve as reference for engineering support and monitoring design.

关 键 词：数值模拟 地下洞室群 非线性有限元 开挖 大岗山工程 

分 类 号：TV222.2[水利工程—水工结构工程]