摘要
青岛海底隧道工程海域段穿越断裂破碎带,岩体呈碎裂结构,岩质软硬不均。为对岩体渗流场与洞周围岩开挖二次应力场二者间进行相互作用分析,应用非线性有限元程序ABAQUS检算施工期海底隧道开挖和衬护结构施作后,围岩体渗流场与隧道开挖二次应力场间的相互作用,得出围岩体渗流场、应力场的分布规律、洞周围岩塑性区的分布和范围,为海底隧道工程提供设计、施工依据。
The sea section of Qingdao submarine tunnel project goes across faulted and shattered zone with the rock mass fragmented and the rock of non-uniform strata. In order to analyze the interaction between the rock seepage field and the excavated secondary rock stress field, with nonlinear finite element program ABAQUS, the calculation is conducted to check this interaction after the tunnel excavation and application of lining structure, and then to get the distribution law of the surrounding rock seepage and stress fields, as well as the distribution and range of the plastic zone in the surrounding rock, both of which are the basis of design and construction of submarine tunnel project.
出处
《路基工程》
2013年第2期43-46,52,共5页
Subgrade Engineering
基金
国家自然科学基金项目(51009071)
关键词
流固耦合
海底隧道
围岩应力场
渗流场
非线性有限元
塑性区
fluid-solid coupling
submarine tunnel
surrounding rock stress field
seepage field
nonlinear finite element
plastic zone
