基于实测地表位移的基坑开挖引起临近地下管线位移的计算

刘红岩; 李厚恩; 黄妤诗; 吕淑然

doi:10.13204/j.gyjz201110018

基于实测地表位移的基坑开挖引起临近地下管线位移的计算

doi: 10.13204/j.gyjz201110018

1.
1. 中国地质大学(北京) 工程技术学院,北京 100083;
2.
2. 西藏大学工学院,拉萨 850000;
3.
3. 北京市勘察设计研究院有限公司,北京 100038;
4.
4. 首都经济贸易大学安全与环境工程学院,北京 100026

基金项目:

国家自然科学基金项目(41002113);中央高校基本科研业务费专项资金资助(2010ZY45);北京市教育委员会科技计划面上项目 (km200910038002);教育部科学技术研究重点项目(211175)

详细信息

作者简介:
刘红岩，男，1975年出生，博士，副教授。E－mail:lhyan1204@126.com

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出版历程
- 收稿日期: 2011-03-21
- 刊出日期: 2011-10-20

DISPLACEMENT CALCULATION OF NEARBY UNDERGROUND PIPELINE CAUSED BY DEEP EXCAVATION BASED ON FIELD TEST OF GROUND DISPLACEMENT

1.
1. College of Engineering ＆ Technology,China University of Geoseiences (Beijing),Beijing 100083,China;
2.
2. School of Engineering,Tibet University,Lhasa 850000,China;
3.
3. BGI Engineering Consultants Ltd,Beijing 100038,China;
4.
4. School of Safety and Environment Engineering,Capital University of Economics and Business,Beijing 100026,China

摘要

摘要: 基坑开挖对临近地下管线的影响是目前关系到城市基坑能否安全、经济施工的一个重要问题，也已成为该领域的一个研究难点和热点课题。在前人提出的弹性地基梁理论的基础上，提出根据现场实测地表沉降曲线计算基坑开挖对引起临近地下管线位移的方法，弥补前人假定地下管线上方地表沉降曲线为抛物线的不足，从而使计算结果更加准确。最后通过一个工程实例，对该方法的求解过程进行说明，得出地下管线的竖向位移方程，并采用Matlab软件求出了其数值解，计算结果与实测值吻合良好。
- 基坑开挖 /
- 地表沉降 /
- 地下管线竖向位移 /
- 弹性地基梁
Abstract: Influence of foundation excavation on nearby underground pipeline is a key problem relating safe andeconomic construction of city foundation, which is a difficult and hot research subject． Based on the elastic foundationbeam theory proposed by the predecessors, the calculation method based on field test ground subsidence curve ofcalculating the influence of deep excavation on nearby underground pipeline was proposed． This method made up theshortage of supposing the ground subsidence curve above underground pipeline to be parabola, which made thecalculation result more accurate． Finally, the solution process of this method was illustrated through an engineeringexample． The vertical displacement equation of underground pipeline was obtained, and its value solution was solvedwith Matlab software, which was in good agreement with that of field test．
- deep excavation /
- ground subsidence /
- vertical displacement of underground pipeline /
- elastic foundation beam