考虑降水渗流效应的土钉-桩锚支护结构深基坑数值分析  

Numerical analysis on the seepage effect of deep foundation pit dewatering

作　　者：亢鑫超 王士杰[1] 王崇宇 王垂东 丁伟[2] KANG Xin-chao;WANG Shi-jie;WANG Chong-yu;WANG Chui-dong;DING Wei(College of Urban and Rural Construction,Hebei Agricultural University,Baoding 071001,China;Hebei Research Institute of Construction and Geotechnical Investigation Co.Ltd.,Shijiazhuang 050031,China)

机构地区：[1]河北农业大学城乡建设学院,河北保定071001 [2]河北建设勘察研究院有限公司,河北石家庄050031

出　　处：《河北农业大学学报》2018年第2期129-133,138,共6页Journal of Hebei Agricultural University

基　　金：河北省建设科技研究指导性计划项目(2016-236)

摘　　要：根据邯郸某基坑工程实例,采用FLAC3D数值分析软件建立了考虑应力场-渗流场动态耦合作用的三维数值模型,揭示了基坑支护结构内力、位移及坑外地表沉降随降水过程的变化规律,探讨了地下水位变化对基坑稳定性的影响。研究成果对类似的深基坑工程具有一定的借鉴价值。Based on an example of pit construction in Han Dan,three-dimensional finite difference numerical model considering the dynamic coupling of stress field and seepage field is established in software FLAC3D.Our study revealed the rule of internal force of supporting structure,displacement of piles,and ground surface settlement with the precipitation process and three-dimensional stability evaluation influenced by the change of groundwater level is carried out by using the strength reduction technique.Our result will serve as a good reference to similar foundation pit engineering.

关 键 词：深基坑 降水 流固耦合 稳定性 

分 类 号：TU473.2[建筑科学—结构工程]