基于Midas GTS软件对某基坑支护的数值模拟分析

1吉林建筑大学 测绘与勘查工程学院,长春 130118 2河北建设勘察研究院有限公司,石家庄 050277

基坑支护; Midas GTS; 数值模拟; 数据对比分析

Numerical simulation of a foundation pit support based on Midas GTS software
SUN Chao1,CHEN Jun-jun1,SUN Yi-zhe2

1 Schoolof surveying and prospecting engineering,Jilin Jianzhu university,Changchun 130118,China 2 Hebei research institute of construction & geotechnical investigation Co.,Ltd.,Shijiazhuang 050277,China

foundation pit support; Midas GTS; numerical simulation; datacomparative analysis

备注

为了更加深入地研究深基坑开挖过程对基坑变形及围护结构的影响,运用Midas GTS软件对长春市某基坑开挖的施工过程进行模拟,并与现场实际监测数据进行对比分析.结果表明:基坑开挖过程中产生的坑底隆起位移及水平方向位移与实际监测结果基本趋于一致; 基坑开挖会使围护结构产生朝向基坑内的水平位移,模拟计算得出的桩顶水平位移和围护结构最大水平位移与实际监测数据基本吻合,说明模拟软件Midas GTS具有一定的可靠性,可为基坑监测提供适当的参考依据.

In order to further study the influence of deep foundation pit excavation process on foundation pit deformation and retaining structure,Midas GTS software was used to simulate the construction process of a foundation pit excavation in Changchun City,and compared with the actual monitoring data.The results show that: the heave displacement and horizontal displacement of the pit bottom generated in the process of foundation pit excavation are basically consistent with the actual monitoring results; the excavation of foundation pit will cause the horizontal displacement of the retaining structure towards the foundation pit,and the horizontal displacement of the pile top and the maximum horizontal displacement of the retaining structure are basically consistent with the actual monitoring data,which shows that the simulation software Midas GTS has a certain reliability,which can provide appropriate reference for foundation pit monitoring.