云南农业大学学报2011，Vol.26Issue(6)：872-877,6.DOI:10.3969/j.issn.1004-390X(n).2011.06.025
高承压水地层深基坑开挖井点降水影响因素分析
Analysis of Factors Affecting Well-point Dewatering during Foundation Pit Excavation in Soil Layer with High Artesian Water Pressure
李年辉 1李涛 1曲军彪2
作者信息
- 1. 北京交通大学土木建筑工程学院,北京100044
- 2. 中交水运规划设计院有限公司,北京100007
- 折叠
摘要
Abstract
The well-point dewatering method is often used during deep foundation pit excavation in soil layer with high artesian water pressure. However, because of many influence factors it is much difficult to make dewatering design and implementation in such a soil layer. To solve this problem, the seepage function pattern of the software FLAC3D and the orthogonality method are herein applied for analyzing how the different factors, like depth of water-proof wall, depth of pump well, pump output, position of wells, artesian water head and permeability of soil layer, affect the well-point dewatering. Based on the result obtained from the orthogonality tests the optimum design concept is suggested in this paper for dewatering during deep foundation pit excavation.关键词
基坑开挖/承压水/井点降水/正交试验/影响因素Key words
foundation pit excavation/ artesian pressure/ well-point dewatering/ orthogonality test/ influence factor分类
建筑与水利引用本文复制引用
李年辉,李涛,曲军彪..高承压水地层深基坑开挖井点降水影响因素分析[J].云南农业大学学报,2011,26(6):872-877,6.
