某深基坑降水方案数值分析  

NUMERICAL SIMULATION PROGRAM OF THE FOUNDATION PIT

作　　者：杨庆年[1] 胡金栋 

机构地区：[1]南阳理工学院土木工程学院,河南南阳473004 [2]南阳工程咨询中心,河南南阳473000

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)

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.

关 键 词：降水 数值模拟 基坑变形 

分 类 号：TU473.2[建筑科学—结构工程]