摘要
裂隙岩体在渗流水荷载作用下的裂隙围岩流-固耦合研究是隧道工程研究的热点问题,而计及中间主应力影响的隧道围岩流-固耦合应力计算鲜见介绍。采用双剪统一强度理论屈服模型,计及中间主应力影响,分析了在渗流水荷载作用下隧道围岩处于弹性、软化、塑性流动时的流-固耦合问题,并给出了含水围岩、衬砌应力、位移与变形区界面半径解析计算式。其结果对水底隧道围岩稳定分析与衬砌结构设计计算具有工程实用意义。
The research on fluid and stress coupling of fissured rock mass under seepage water has become a hot issure;but the calculation of rock considering intermediate principal stress is very few.By use of the unified strength theory and considering the intermediate principal stress,the tunnel surrounding rock to be placed in elasticity,soften,plasticity flow coupling,and give analytical solutiong of boundary radius in deformed district under the contain water to round a rock,lining stress and displacement.The acquisition result tunnel adjoining rock stability analysis and stress structure design＇s calculation to have the engineering practical meaning to the bottom of water tunnel.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2010年第10期3209-3216,共8页
Rock and Soil Mechanics
关键词
水底隧道
含水围岩
应力
位移
undersea tunnel； surrounding rock containing water； stress； displacement；
