| 戴云山隧道进口开挖方式数值模拟分析 |
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| 引用本文： | 鞠颂,李学伟,杨申朋.戴云山隧道进口开挖方式数值模拟分析[J].山东交通科技,2011(2). |
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| 作者姓名： | 鞠颂 李学伟 杨申朋 |
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| 作者单位： | 山东建筑大学;中铁十六局第一工程有限公司;济南金曰公路工程有限公司; |
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| 摘 要： | 以戴云山隧道进口为研究对象,利用弹塑性有限元程序ANSYS建立数值模型,以莫尔-库伦强度准则为屈服条件,分别采取台阶法和中隔壁法(CD法)开挖支护并进行数值模拟,得到施工过程中围岩及支护结构的位移、应力分布的变化规律。
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| 关 键 词： | 双线铁路隧道 开挖支护 台阶法 CD法 数值模拟 |
Numerical simulation analysis of excavation method of Daiyunshan tunnel |
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| JU Song,LI Xue-wei,YANG Shen-peng.Numerical simulation analysis of excavation method of Daiyunshan tunnel[J].SHANDONG JIAOTONG KEJI,2011(2). |
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| Authors: | JU Song LI Xue-wei YANG Shen-peng |
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| Institution: | JU Song1,LI Xue-wei2,YANG Shen-peng3(1.Shandong Jianzhu University,Shandong Jinan 250101 China,2.The First Engineering Co.,of China Railway 16th Bureau,Beijing 101300 China,3.Jinan Jinyue Highway Engineering Co.,Shandong Jinan 250022 China) |
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| Abstract: | Take the enter port of Daiyunshan tunnel as the research object,the author established numerical model using the elastic-plastic finite element program ANSYS,used the Mohr-Coulomb strength criterion as the yield condition,selected step method and CD method to excavate,support processes and take the numerical simulation,and got the variation of the surrounding rock and supporting structure displacement and stress distribution in construction process. |
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| Keywords: | double track railway tunnel excavation and support processes step method CD method numerical simulation |
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