岩土工程学报Issue(z2)：455-459,5.DOI:10.11779/CJGE2014S2079
地铁换乘车站基坑支撑轴力监测与数值模拟
Monitoring and numerical simulation of axial forces of struts for foundation pit of a metro transfer station
张光建 1姚小波 1胡瑾1
作者信息
- 1. 中冶集团武汉勘察研究院有限公司，湖北 武汉430080
- 折叠
摘要
Abstract
Based on the foundation pit project of a metro transfer station, the changing laws of the axial forces of struts with the excavation time are studied. A three-dimensional finite element model is established to numerically simulate the foundation pit of the metro station. The FEM and in-situ monitoring results of axial forces of struts are compared. The results show that the axial forces of the fourth concrete strut are the maximum, and the design values of the fifth and the sixth steel struts are conservative. Besides, the removal of a strut has a notable influence on its adjacent struts. The calculated results are less than the in-situ monitoring ones, but the trend of their changing laws is almost uniform. The three-dimensional finite element model can simulate the excavation process of abnormal foundation pits, and it can be used to provide reference for their design and construction.关键词
换乘车站/深基坑/支撑轴力/监测/有限元Key words
transfer station/deep foundation pit/axial force of strut/monitoring/finite element分类
建筑与水利引用本文复制引用
张光建,姚小波,胡瑾..地铁换乘车站基坑支撑轴力监测与数值模拟[J].岩土工程学报,2014,(z2):455-459,5.
