| 基坑开挖对既有地铁区间隧道的影响性分析 |
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| 引用本文： | 李泽基,黄旭.基坑开挖对既有地铁区间隧道的影响性分析[J].广东公路交通,2021(1). |
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| 作者姓名： | 李泽基 黄旭 |
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| 作者单位： | ;1.广东工业大学 |
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| 基金项目： | 国家自然科学基金项目(编号:51978668)。 |
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| 摘 要： | 以某新建基坑为背景,利用有限元软件Midas GTS NX建模,分析周边土体和既有地铁区间隧道在该基坑开挖过程中的变形规律。结果表明:基坑开挖施工对既有地铁区间隧道的沉降影响较小,不会产生明显的隆起或沉陷。坑底的最大回弹量为7.6mm,初步判定该基坑设计合理,在标准的施工安排下是安全的。
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| 关 键 词： | 基坑 隧道 数值模拟 |
Analysis on Influence of Foundation Pit Excavation on Existing Subway Interval Tunnels |
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| LI Zeji,HUANG Xu.Analysis on Influence of Foundation Pit Excavation on Existing Subway Interval Tunnels[J].Guangdong Highway Communications,2021(1). |
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| Authors: | LI Zeji HUANG Xu |
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| Institution: | (Guangdong University of Technology,Guangzhou 510006) |
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| Abstract: | Being based on a new foundation pit,Midas GTS NX numerical simulation software has been used in this paper to analyze the deformation law of surrounding soil mass and subway tunnel during the excavation process of this foundation pit.The results have shown that the foundation pit excavation has little influence on the settlement of existing subway interval tunnels,and there is no obvious uplift or subsidence.The maximum rebound capacity at the bottom of the pit is 7.6mm.It has been preliminarily judged that the design of the pit is reasonable and safe under the standard construction arrangement. |
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| Keywords: | foundation pit tunnel numerical simulation |
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