Stability Analysis of Supporting Structure in Deep Foundation Pit Under Conditions of Seepage
Dong Jian-jun, Wu Jun-hu
1: Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei Province, Yanshan University, Qinhuangdao 066004, China
In the construction of a riverside foundation pit, the river radial seepage will produce significant influence on the stability of deep foundation pit and supporting structure. In order to explore the law of seepage in the process of foundation pit excavation, the paper carry out the numerical simulation analysis of three dimensional fluid-solid coupling to the deep foundation pit engineering of Qinhuangdao pearl river road no.12. Monitoring results show that, seepage has adverse effect to the stability of deep foundation pit and supporting structure. Only fully consider the influence of river radial seepage in the design, the safety of deep foundation pit engineering guaranteed.
Keywords: seepage; fluid-solid coupling; foundation pit; supporting structure; stability.
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