| 浏阳河浅埋大跨度隧道临时支护安全性分析 |
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| 引用本文： | 赵磊,王栋.浏阳河浅埋大跨度隧道临时支护安全性分析[J].路基工程,2010,0(6):88-90. |
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| 作者姓名： | 赵磊 王栋 |
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| 作者单位： | 1.中国华西工程设计建设有限公司, 成都 610031 |
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| 摘 要： | 针对目前国内采用CRD法修建隧道施工过程中对临时中隔壁的安全性研究很少,结合武广客运专线浏阳河浅埋大跨度隧道对中隔壁采用现场监测和数值模拟两种手段进行了对比分析,两种方法所得结果吻合良好。结果表明,在CRD1,CRD3部超前的情况下,中隔壁上部的水平位移明显大于下部,但结构安全系数能够满足施工要求。
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| 关 键 词： | 浅埋大跨度隧道 临时支护 CRD法 现场监测 数值模拟 |
| 收稿时间： | 2019-11-05 |
Safety Analysis on Temporary Lining for Shallow-buried Large-span Tunnel Crossing Liuyang River |
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| Authors: | ZHAO Lei WANG Dong |
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| Affiliation: | 1.West China Engineering Construction Co.,Ltd.,Chengdu 610031,China;2.The Fifth Geological Minerals Survey Institute of Shandong,Taian 271000,Shandong,China) |
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| Abstract: | For there is rare research on safety of temporary median lamella in tunnel construction using CRD method at present,combined with shallow-buried large-span tunnel crossing Liuyang River in Wuhan-Guangzhou Passenger Dedicated Line,median lamella is analyzed separately by site monitoring and numerical simulation,and the result from these two methods are the same.It is shown that with CRD1 and CRD3 section advanced,horizontal displacement of upper median lamella is obviously greater than that of lower median lamella,but structural safety coefficient can satisfy construction requirement. |
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| Keywords: | shallow-buried large-span tunnel temporary lining CRD method site monitoring numerical simulation |
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