文章基本信息

标题：Analysis of the influence of groundwater seepage on the deformation of deep foundation pit with suspended impervious curtain
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作者：Jinjiang Shi ; Bo Wu ; Yi Liu 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2022
卷号：14
期号：3
页码：1-10
DOI：10.1177/16878132221085128
语种：English
出版社：Sage Publications Ltd.
摘要：Taking the deep foundation pit of a metro station with rich water environment as the research background, a three-dimensional model of seepage-stress coupling is established. Numerical simulation is used to study the deformation process and influencing factors of deep foundation pit dewatering and excavation of the station, and the influence of dfferent pre-dewatering conditions and different depths of the water-stop curtain on the deformation of the foundation pit is analyzed. The results show that during the dewatering and excavation of foundation pits, seepage-stress has an obvious coupling effect in dewatering and excavation. The stress concentration position of retaining structure and the maximum displacement of lateral displacement are about 0.5–0.6 excavation depth of pile body. With the depth of precipitation increases, the seepage effect in the soil layer is obviously enhanced, which is not conducive to the stability of the foundation pit.
关键词：Subway station;seepage stress coupling;foundation pit deformation;numerical analysis;impervious curtain