[1]王金龙,张家发,崔皓东,等.南水北调中线典型渠段施工期降水措施研究[J].郑州大学学报(工学版),2012,33(05):82-86.[doi:10.3969/j.issn.1671-6833.2012.05.018]
　WANG Jinlong,ZHANG Jiafa,CUl Haodong,et al.Dewatering Measures for Construction Period of the Typical CanalStretch of Middle Route Project of SNWT[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):82-86.[doi:10.3969/j.issn.1671-6833.2012.05.018]
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南水北调中线典型渠段施工期降水措施研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年05期
页码:
82-86
栏目:
出版日期:
2012-09-10

文章信息/Info

Title:
Dewatering Measures for Construction Period of the Typical CanalStretch of Middle Route Project of SNWT
作者:
王金龙; 张家发; 崔皓东; 等.
长江科学院水利部岩土力学与工程重点实验室,湖北武汉430010;国家大坝安全工程技术研究中心,湖北武汉430010, 长江科学院水利部岩土力学与工程重点实验室,湖北武汉430010;国家大坝安全工程技术研究中心,湖北武汉430010, 长江科学院水利部岩土力学与工程重点实验室,湖北武汉430010;国家大坝安全工程技术研究中心,湖北武汉430010, 长江科学院水利部岩土力学与工程重点实验室,湖北武汉430010;国家大坝安全工程技术研究中心,湖北武汉430010
Author(s):
WANG Jinlong; ZHANG Jiafa; CUl Haodong; etc;
1.Key l.aboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Yangtze River Scientific Re.search Institute Wuhan 430010,China; 2. National Rescarch Center for Dam Safety Technology, Wuhan 430010,China
关键词:
南水北调中线;  基坑降水;  渗流场
Keywords:
south-north water transfer project;  foundation pit dewatering;  seepage field
分类号:
TV223.4
DOI:
10.3969/j.issn.1671-6833.2012.05.018
摘要:
针对南水北调中线工程陶岔—沙河南段施工期地下水问题,选取典型断面建立渗流数值模型,计算分析有、无降水措施及不同计算条件下基坑的渗流场分布特征.研究结果表明,对于存在承压水的基坑工程,当基坑开挖深入地下水位以下且随着含水层顶板减薄,基坑底部易出现安全问题,应采取渗流调控措施;施工期补给边界、含水层厚度及其渗透性、降水井布置等因素对基坑降水效果的影响显著.
Abstract:
The groundwater is an important factor for the safety of foundation pit, In order to analyse the distri-.bution of seepage field under different calculating conditions with seepage control measures, a typical canalstretch was modeled for construction period of Middle Route Project of $NWT, The numerical simulation re.sults show that the pit safety would decrease with the less permeable layer being excavated step by step and aquifer confined beneath it , so measures should be taken to control and regulate the seepage field. The efficiencyof foundation pit dewatering would be affected by the water recharge boundary, the thickness and permeabilityof the aquifer , the arrangement of dewatering wells, and so on.
更新日期/Last Update: 1900-01-01