基于ABAQUS在基坑降水的渗流-应力耦合分析中的应用  

Application of ABAQUS in Seepage-Stress Coupling Analysis of Foundation Pit Dewatering

作　　者：罗景崭 熊建刚 LUO Jing-zhan;XIONG Jian-gang(Zhong Zi Hua Ke Traffic Coustruction Technology Co.,Ltd.;Creec(Guangdong) Harbor Survey Anddesign Co.,Ltd.)

机构地区：[1]中咨华科交通建设技术有限公司 [2]中铁二院(广东)港航勘察设计有限责任公司

出　　处：《智能建筑与智慧城市》2019年第5期106-109,共4页Intelligent Building & Smart City

摘　　要：基坑降水过程中,根据有效应力原理,对饱和土体,总应力不变,随着孔隙水压力的减小,导致有效应力增大,作用在土骨架上的应力变大,因此基坑降水就会引起周围土体的沉降。ABAQUS软件通过模拟降水过程中的孔隙水压力的变化,对降水过程中的基坑土体中的应力、应变以及水平位移的变化进行分析,得出基坑周边及基坑底板处土体的沉降变化情况和实际情况基本一致。During dewatering of foundation pit,according to the principle of effective stress for saturated soils,the total stress is constant,with the decrease of the pore water pressure,lead to increase of effective stress effect on the soil skeleton stress become larger,so the settlement of surrounding soils of foundation pit precipitation will cause ABAQUS software by simulating the change of pore water pressure in the process of precipitation,the precipitation in the process of stress and strain and the change of the horizontal displacement of foundation pit soil were analyzed,and the results show that the settlement of the soil around the foundation pit and the foundation pit floor is consistent with the actual situation.

关 键 词：基坑降水 流固耦合 有限元分析 

分 类 号：TU753.66[建筑科学—建筑技术科学]