地铁基坑开挖桩体与钢支撑变形与受力的数值模拟  

Numerical Simulation on the Deformation and Stress of the Pile and Steel Shotcrete in Supporting Structure

作　　者：郭文章[1] 储征伟[1] 

机构地区：[1]南京市测绘勘察研究院有限公司,江苏南京210000

出　　处：《城市勘测》2014年第6期160-163,共4页Urban Geotechnical Investigation & Surveying

基　　金：南京市建设系统科研项目(201207)

摘　　要：以南京地铁三号线卡子门站为工程背景,运用有限差分软件FLAC3D对基坑开挖进行数值模拟。模拟了桩体水平位移和钢支撑轴力在基坑开挖过程中的变化规律,并将模拟结果与现场实测结果进行了对比,分析了模拟结果与实测结果的差异以及产生差异的原因。结果可为数值模拟技术在基坑开挖中的应用提供参考。The finite difference software FLAC 3D was employed to simulate excavation of foundation pit during subway excavation based on the third line of Nanjing subway project in this paper. The change regulation of the pile horizontal displacement and the steel shotcrete axial force were simulated. The results were compared with the measured in the construction field. The differences between the simulated and measured results and the reason were also analyzed. The conclusions can provide some references for the similar research in subway excavation.

关 键 词：基坑监测 数值模拟 桩体水平位移 轴力 

分 类 号：TU753[建筑科学—建筑技术科学]