| 地铁车站深基坑变形规律现场监测 |
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| 引用本文： | 高立新,王强,李国杰.地铁车站深基坑变形规律现场监测[J].铁道工程学报,2011(11):112-116. |
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| 作者姓名： | 高立新 王强 李国杰 |
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| 作者单位： | 1. 天津华北工程勘察设计有限公司,天津,300181
2. 中国地震局兰州地震研究所,兰州,730000 |
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| 摘 要： | 研究目的:深基坑围护结构设计及其变形规律研究是地铁车站建设中的重要问题之一,开展地铁车站深基坑变形规律研究具有重要的工程应用价值。本文以北京地铁奥运支线折返线车站深基坑为研究背景,根据基坑开挖及围护方案,设计施工监测方案。依据监测资料,重点分析围护桩变形监测数据和基本规律;将钢支撑受力情况和桩体变形相结合分析,研究围护结构各部分的协同作用。研究结论:随着基坑开挖深度的增加和钢支撑的施加,围护桩的变形形态由向坑内的前倾型曲线逐渐变为弓形,最大水平位移发生的位置也随之下移。围护桩的水平位移、水平钢支撑的轴力也随着基坑开挖深度的增加而增大,但其实测值都远小于警戒值,说明围护结构设计偏于保守。
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| 关 键 词： | 深基坑 基坑变形 现场监测 支护形式 |
In - situ Monitoring of Deformation Laws of Deep Foundation Pit of Subway Station |
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| GAO Li-xin,WANG Qiang,LI Guo-jie.In - situ Monitoring of Deformation Laws of Deep Foundation Pit of Subway Station[J].Journal of Railway Engineering Society,2011(11):112-116. |
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| Authors: | GAO Li-xin WANG Qiang LI Guo-jie |
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| Institution: | GAO Li-xin1,WANG Qiang2,LI Guo-jie1 (1.Tianjin North China Engineering Survey and Design Co.Ltd,Tianjin 300181,China 2.Lanzhou Institute of Seismology,China Earthquake Administration,Lanzhou,Gansu 730000,China) |
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| Abstract: | Research purposes: The design of the exterior-protected construction and the study on the deformation laws of deep excavation are crucial to the construction of subway station,so it has the important value for construction to do the research on the deformation laws of deep foundation pit of subway station.Taking the deep foundation pit of the turn line station of the Olympic branch line of Beijing subway as the research bakground,the in-situ monitoring plan for deformation was designed according to the plan... |
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| Keywords: | deep foundation pit deep foundation deformation in-situ monitoring support way |
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