摘要
本文通过对某地铁车站深基坑工程两种降水方案进行数值模拟,分析了一次性降水和分步降水条件下基坑的变形规律。通过数值分析得到,一次性降水引起的基坑变形明显大于分步降水引起的基坑变形,在施工工期许可的情况下,尽量采用分步降水的方案,以便减少基坑开挖引起的变形。
In this paper, a deep foundation pit of one subway station is analyzed under two different precipitation conditions, and the deformation laws of the pit under one - time precipitation and step - by - step precipitation conditions are investigated. The results indi- cate that the deformations caused by one - time precipitation are significantly larger than the deformations caused by step - by - step precipitation. Therefore, a step - by - step precipitation scheme is preferred in order to reduce the deformation cause by foundation ex- cavation, when construction period permits.
出处
《南阳理工学院学报》
2012年第4期77-79,107,共4页
Journal of Nanyang Institute of Technology
基金
河南省基础与前沿技术研究计划项目(102300410148)
关键词
降水
数值模拟
基坑变形
precipitation
numerical simulation
foundation pit deformation
