基于有限元法的隧道围岩压力计算与分析方法研究  

Discussion on the Calculation and Analytic Method of the Surrounding Rock of Tunnel on the Finite Element Method

作　　者：肖林萍[1] 李永树[1] 赵玉光[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《地矿测绘》2008年第2期1-3,20,共4页Surveying and Mapping of Geology and Mineral Resources

摘　　要：隧道围岩压力计算,常规的公式法是假设应力为均匀分布,没有考虑应力集中现象,而有限元法适用于分析模拟围岩体和构造的各种特性,可以准确地计算出隧道围岩应力。据此,以实际工程为例,利用公式法对围岩压力进行计算,并运用有限元法的数值方法,采用专业软件对浅埋、深埋圆形隧道的围岩应力状态进行了数值模拟分析,得出其分析与计算结果对隧道围岩压力计算具有重要意义的结论。Calculated of the surrounding rock loading in tunnel, the stress of the surrounding rock is presumed well- distributed, and the concentrate stress not considered. The finite element method （FEM） is fit to simulate the characteristics of the surrounding rock and geologic structure. The FEM can calculate the accurate value of the sounding rock loading in the tunnel. This paper uses the ANASYS program, to simulate the state of the surrounding rock loading. The results have important significance in the calculation method of the surrounding rock loading now.

关 键 词：有限元法 隧道 围岩压力 数值模拟 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]