| 软土地区超大直径盾构下穿轨道交通影响分析 |
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| 引用本文： | 江磊. 软土地区超大直径盾构下穿轨道交通影响分析[J]. 城市道桥与防洪, 2020, 0(4): 189-192,I0019-I0020 |
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| 作者姓名： | 江磊 |
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| 作者单位： | ;1.上海隧道工程有限公司 |
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| 摘 要： | 随着地下空间不断开发,新建盾构隧道近距离穿越既有隧道、地下通道、地下管线等的现象越来越普遍。由于新建盾构隧道对原地应力场的改变,必然会引起既有隧道的变形,对既有隧道的结构安全产生影响。结合上海市北横通道大直径盾构隧道工程实例,采用Midas_GTS有限元分析软件建立三维数字模型,分析软土地区超大直径盾构隧道穿越施工,对已运营轨道交通盾构隧道的影响。
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| 关 键 词： | 盾构 轨道交通 穿越施工 数值分析 |
Analysis on Influence of Oversized-diameter Shield Tunneling on Rail Traffic in Soft Soil Area |
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| JIANG Lei. Analysis on Influence of Oversized-diameter Shield Tunneling on Rail Traffic in Soft Soil Area[J]. Urban Roads Bridges & Flood Control, 2020, 0(4): 189-192,I0019-I0020 |
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| Authors: | JIANG Lei |
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| Abstract: | With the continuous development of underground space,the phenomenon of the newly built shield tunneling close to the existing tunnel,underground channel and underground pipeline is becoming more and more common.The newly built shield tunnel will inevitably cause the deformation of the existing tunnel because of the changes in its situ stress field,which will cause the influence on the structural safety of the existing tunnel.Combined with the example of Shanghai North Cross Channel Large Diameter Shield Tunnel Project,a 3D digital model is established by MIDAS GTS finite element analysis software to analyze the influence of oversized-diameter shield tunneling on the shield tunnel of the operated rail traffic in the soft soil area. |
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| Keywords: | shield rail traffic tunneling construction numerical analysis |
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