青岛海底隧道围岩应力场与渗流场相互作用数值模拟  

Numerical Simulation on Interaction between Stress and Seepage Fields in Surrounding Rock of Qingdao Submarine Tunnel

作　　者：周太全[1] 华渊[1] 鲍汝苍 

机构地区：[1]江南大学环境与土木工程学院,江苏无锡214122 [2]中铁19局集团第5工程有限公司,辽宁大连116000

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)

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.

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 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]