| 大体积覆土开挖卸载对盾构隧道的变形影响 |
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| 引用本文： | 王淼.大体积覆土开挖卸载对盾构隧道的变形影响[J].开封大学学报,2011,25(3):88-90,93. |
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| 作者姓名： | 王淼 |
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| 作者单位： | 上海市政工程设计研究总院[集团]有限公司轨道交通隧道工程设计研究院,上海,200092 |
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| 摘 要： | 采用有限元软件，对曹妃甸工业区跨纳潮河综合盾构隧道管廊在运营阶段上方规划河的开挖工况进行了分析，对大范围覆土卸载条件下的盾构隧道变形进行了研究．结果表明：盾构隧道在上方覆土开挖卸载时变形存在4处反弯点．通过加密设置变形缝，可满足盾构变形需要．
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| 关 键 词： | 盾构隧道 覆土开挖卸载 变形影响 |
Reaserch on the Effect on the Deformation of the Shield Tunnel Under the Excavation of the Earth Covering |
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| WANG Miao CO.,LTD,Shanghai ,China.Reaserch on the Effect on the Deformation of the Shield Tunnel Under the Excavation of the Earth Covering[J].Journal of Kaifeng University,2011,25(3):88-90,93. |
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| Authors: | WANG Miao CO LTD Shanghai China |
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| Institution: | WANG Miao(Rail Transit and Tunnel Engineering Design Institute,General Design Institute of Shanghai Municipal Engineering(GROUP) CO.,LTD,Shanghai 200092,China) |
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| Abstract: | Based on the FEM analysis of the shield tunnel in Caofeidian industrial district with the excavation of the earth covering,the paper mainly studies the characteristic of the deformation of shield tunnel under the excavation of the earth covering,the results show that shield tunnel has four inflection points,and the deformation need of the shield tunnel can be met by adding movement joint. |
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| Keywords: | shield tunnel excavation of the earth covering effect on the deformation |
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