| 新建隧道盾构下穿施工对既有隧道影响的三维数值模拟 |
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| 引用本文： | 房明,刘镇,周翠英,史海欧.新建隧道盾构下穿施工对既有隧道影响的三维数值模拟[J].铁道科学与工程学报,2011,8(1):67-72. |
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| 作者姓名： | 房明 刘镇 周翠英 史海欧 |
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| 作者单位： | 1. 中山大学,工学院//中山大学岩土工程与信息技术研究中心,广东,广州,510275
2. 广州市地下铁道设计研究院,广东,广州,510010 |
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| 基金项目： | 国家高技术研究发展计划项目(863计划)(2007AA11Z112); 国家自然科学基金项目(40672194); 高等学校博士学科点基金项目(20060558060); 广东省自然科学基金重点项目(06104932); 中山大学后备重点课题(1132169) |
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| 摘 要： | 采用三维有限元方法对新建隧道盾构下穿施工过程进行了动态模拟,分析了新建隧道盾构正交下穿施工对既有隧道位移、应力的影响;进而探讨了不同的隧道覆土厚度、隧道间相对距离及土体强度下,新建隧道盾构正交下穿施工对既有隧道位移的影响.结果表明:新建隧道盾构正交下穿施工引起既有隧道位移方向朝向新建隧道方向发展,既有隧道位移以纵向沉降...
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| 关 键 词： | 交叉隧道 盾构 下穿 三维有限元分析 |
3-D numerical simulation of influence of undercrossing shield construction on existing tunnel |
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| FANG Ming
,
LIU Zhen
,
ZHOU Cui-ying
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SHI Hai-ou.3-D numerical simulation of influence of undercrossing shield construction on existing tunnel[J].Journal of Railway Science and Engineering,2011,8(1):67-72. |
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| Authors: | FANG Ming LIU Zhen ZHOU Cui-ying SHI Hai-ou |
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| Institution: | FANG Ming1,LIU Zhen1,ZHOU Cui-ying1,SHI Hai-ou2(1.School of Engineering//Research Center for Geotechnical Engineering and Information Technology,Sun Yat-sen University,Guangzhou 510275,China,2.Design Institute of Guangzhou Metro Corporation,China) |
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| Abstract: | By means of 3D-FEM,the construction process of undercrossing construction is simulated and the influence of shield tunneling on settlement of the ground surface and displacement and internal forces of the existing tunnel are analyzed.Then,the influence of undercrossing construction on displacement of the existing tunnel under different covering soil condition is studied.The results show that the displacement of the existing tunnel caused by shield tunneling points to the new tunnel,the major of the existing... |
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| Keywords: | undercrossing tunnel shield-driven method passing through 3D-FEM analysis |
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