| 深基坑开挖对邻近地铁车站结构变形的影响研究 |
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| 引用本文： | 刘彦坡,于琪.深基坑开挖对邻近地铁车站结构变形的影响研究[J].低温建筑技术,2019,41(4):106-110. |
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| 作者姓名： | 刘彦坡 于琪 |
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| 作者单位： | 天津市市政工程设计研究院,天津,300392;天津市市政工程设计研究院,天津,300392 |
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| 摘 要： | 选取软土地区某邻近既有地铁线路的深基坑工程,研究了深基坑开挖对其邻近既有地铁地下车站结构的影响。利用MIDASGTS建立深基坑开挖的三维有限元模型,通过数值模拟得到基坑开挖条件下基坑支护结构、基坑及其周边地层、地铁车站结构、盾构隧道结构的变形分布情况,明确了深基坑施工影响下其邻近既有地铁线路的变形规律,为后续进一步采取控制措施提供借鉴。
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| 关 键 词： | 深基坑工程 邻近地铁车站 数值模拟 变形 影响 |
RESEARCH ON THE INFLUENCE OF DEEP FOUNDATION PIT EXCAVATION ON STRUCTURAL DEFORMATION OF ADJACENT METRO STATION |
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| LIU Yanpo,YU Qi.RESEARCH ON THE INFLUENCE OF DEEP FOUNDATION PIT EXCAVATION ON STRUCTURAL DEFORMATION OF ADJACENT METRO STATION[J].Low Temperature Architecture Technology,2019,41(4):106-110. |
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| Authors: | LIU Yanpo YU Qi |
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| Affiliation: | (Tianjin Municipal Engineering Design & Research Institute,Tianjin 300392, China) |
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| Abstract: | Selecting a deep foundation pit project adjacent to existing metro lines in soft soil area, this paper explores the influence of deep foundation pit excavation on the structure of adjacent existing metro underground stations. The three-dimensional finite element model of deep foundation pit excavation is established by MIDAS GTS. The deformation distribution of foundation pit supporting structure, foundation pit and surrounding strata, subway station structure and shield tunnel structure under the condition of foundation pit excavation is obtained by numerical simulation. The deformation law of adjacent existing metro lines under the influence of deep foundation pit construction is clarified, which provides reference for further control measures. |
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| Keywords: | deep foundation pit engineering adjacent metro station numerical simulation deformation influence |
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