摘要
基于弹塑性围岩理论,应用ANSYS有限元软件,采用Drucker-Prager准则,对不同形状的洞室进行了有限元数值模拟分析,通过沿计算模型径向的应力、位移的分析,更清楚地了解洞室围岩的内部状况,使得在洞形选择上有所帮助,避免选择稳定性差的形状;同时在洞形确定后,为后期支护结构的设计能够提出可预见性的指导。
Authors Base on elastic-plastic wall rock of theory, apply ANSYS FEM software, and adopt Drucker-Prager rules. FEM numerical simulation is used to analyze different shapes′hole, by means of the analysis of radial displacement and stress, even more distinctly realize the status of wall rock of hole ,to help the architect to confirm hole's shape, and avoid to the bad stability of shape; at the same time to be able to instruct the design of supporting structure.
出处
《探矿工程（岩土钻掘工程）》
2005年第2期60-63,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
地下洞室
弹塑性
围岩稳定性
数值仿真分析
有限元
underground station
elastic-plastic
stability of wall rock
numerical simulation
FEM
