摘要
隧洞开挖引起的围岩应力重新分布和应力集中是导致围岩失稳破坏的根本作用力。在理论分析的基础上,以圆形隧洞为研究对象,应用FLAC3D程序进行数值模拟,分析了埋藏深度对隧洞围岩与衬砌应力的影响规律,为隧洞建设与维护提供科学的理论指导。
The fundamental force leading to the failure of surrounding rock is the stress re-distribution caused by tunnel excavation,and stress concentration.Based on the theoretical analysis of round tunnel,this article takes numerical simulation by using FLAC3D,and analyses the effect of depth on stress of tunnel surrounding rock and lining.The scientific theory direction would be provided to tunnel construct and maintenance.
出处
《铜业工程》
CAS
2010年第3期1-4,共4页
Copper Engineering
基金
国家自然科学基金资助项目(50879049
50574064)
国家重点基础研究发展计划(973计划)(2010CB226802)
关键词
隧洞
埋藏深度
衬砌
应力
tunnel
burial depth
lining
stress
