摘要
以西北某市水利地下工程泄洪洞为例,在采用弹塑性二维有限元法对洞室围岩开挖后Ⅳ类围岩变形量进行数值模拟研究的基础上,总结分析了低地应力区地下洞室开挖后围岩变形破坏及其特征。
A flood excavation of a hydraulic engineering project of a city in northwest China is taken as an example in this paper. The displacement amount of surrounding rockmass IV of underground excavation is simulated by using two-dimension elastic-plastic FEM in low ground stress region and the displacement and failure characteristics are summarized.
出处
《青海大学学报（自然科学版）》
2006年第5期1-4,共4页
Journal of Qinghai University(Natural Science)
基金
教育部"新世纪优秀人才支持计划"资助(NCET-04-G983)
青海大学科研资助项目(QD-G-06-04)
关键词
低地应力区
地下洞空
围岩变形量
弹塑性二维有限元法
数值模拟
low ground stress region
underground excavation
surrounding rockmass displacementamount
2D-elasto-plasfic FEM
numerical simulation
