摘要
为了更深入地研究深基坑开挖对周边环境的影响,运用Midas GTS/NX软件对长春某深基坑工程开挖过程中周边建筑物进行了模拟,并与现场监测结果进行对比分析,探讨了周边环境的变化规律。结果表明:深基坑开挖会引起围护结构产生朝向基坑内的水平位移,位移最大值为10.8mm,与实际监测数据7.9mm相差了2.9mm,计算结果与实测结果在误差许可范围内基本吻合;对于浅基础建筑物,在距离基坑0.6 H^0.8 H(H为基坑开挖深度)处建筑物沉降和地表沉降差异较大,建筑物表现为不均匀沉降。
In order to study the influence of deep foundation pit excavation on the surrounding environment, the excavation process of a deep foundation pit in Changchun was numerically simulated for its effect on the surrounding buildings by using Midas GTS/N X software. Compared with the on-site monitoring records, the changes of the surrounding environment were discussed. The results show that the calculated results are basically consistent with the measured results;the deep foundation pit excavation caused a displacement of the enclosure structure towards the foundation pit, and the maximum displacement is 10.8 mm, 2.9 mm larger than that of the actual monitoring data of 7.9 mm;for the shallow foundation in the buildings, the settlement and surface settlement of the buildings are different from those of a foundation pit at 0.6H -0 .8 H (excavation depth of foundation pit ) , and the building settlement is uneven.
作者
孙超
许成杰
Sun chao;Xu Chengjie(School of Geometries and Prospecting Engineering,Jilin Jianzhu University,Changchun 130118,China)
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2019年第6期1698-1705,共8页
Journal of Jilin University：Earth Science Edition
基金
住房和城乡建设部研究开发项目(2012-K3-16)~~
关键词
基坑开挖
周边环境
数值模拟
数据分析
excavation
surrounding environment
numerical simulation
data analysis
