| 既有管线下盾构施工地层沉降监测和位移加载数值分析 |
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| 引用本文： | 贾瑞华,阳军生,马涛,刘树亚.既有管线下盾构施工地层沉降监测和位移加载数值分析[J].岩土工程学报,2009,31(3):425-430. |
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| 作者姓名： | 贾瑞华 阳军生 马涛 刘树亚 |
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| 作者单位： | 中南大学土木建筑学院；铁道部第四勘察设计院；深圳市地铁有限公司； |
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| 摘 要： | 针对深圳地铁下穿电缆隧道的实例,通过采用位移加载法模拟隧道开挖效应和弹性地基梁理论分析管土相互作用,提出将地铁上方的既有隧道视为大管径管线考虑,分析了地铁左线施工引起的地层响应,并借助相关控制标准对电缆隧道的安全性作出评价,分析结果表明:数值计算结果与实测数据吻合较好,电缆隧道也处于安全状态,可为相关类似工程研究提供借鉴。
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| 关 键 词： | 既有隧道 管线 位移加载法 弹性地基梁 |
Field monitoring and numerical analysis of shield tunneling considering existing tunnels |
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| JIA Ruihua,YANG Junsheng,MA Tao,LIU Shuya.Field monitoring and numerical analysis of shield tunneling considering existing tunnels[J].Chinese Journal of Geotechnical Engineering,2009,31(3):425-430. |
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| Authors: | JIA Ruihua YANG Junsheng MA Tao LIU Shuya |
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| Affiliation: | 1.Department of Architectural Engineering Central South University Changsha 410075 China 2.Fourth Survey and Design Institute of China Railway Wuhan 430063 China 3.Shenzhen Metro Co. Ltd. Shenzhen 518026 China |
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| Abstract: | Based on the example of Shenzhen shield tunneling under a cable tunnel,through application of the displacement load method to simulate the tunnel excavation and by use of the beam theory of elastic foundation to analyze pipe-soil interaction,the existing tunnel above the subway tunnel considered as a large-diameter pipeline is proposed.The formation response caused by the construction of the left line of the subway is analyzed.The safety of the cable tunnel is evaluated by the relative control standards.It is shown that the numerical results agree well with the measured data,and the cable tunnel is also in a state of safety.It can provide reference for similar projects. |
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| Keywords: | existing tunnel pipeline displacement load method elastic foundation beam theory |
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