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| 偏压连拱隧道施工的动态模拟及最优化分析 | |
| 引用本文： | 庄宁,朱苦竹,李军伟.偏压连拱隧道施工的动态模拟及最优化分析[J].岩土力学,2009,30(9):2875-2880. |
| 作者姓名： | 庄宁 朱苦竹 李军伟 |
| 作者单位： | 1. 河海大学,交通学院、海洋学院,南京,210098 2. 桂林工学院,土木系,桂林,541004 3. 中国联合工程公司,杭州,310022 |
| 摘 要： | 建立了偏压连拱隧道的3D有限元模型，对不同施工工况进行了数值模拟，并与现场监测资料进行比较，通过分析拱顶沉降、中隔墙的位移和应力、围岩的塑性区分布、初衬和二衬应力的变化规律，对偏压连拱隧道施工进行最优化设计，以此得出了最优施工步距、开挖顺序、断面开挖形式、左右两洞开挖面的最佳施工间距，对类似连拱偏压隧道的施工有重要的理论和实际指导意义。 |
| 关 键 词： | 偏压连拱隧道 3D有限元模型 动态模拟 施工优化 |
| 收稿时间： | 2008-05-04 |
Research on partial pressure joint arch tunnel’s dynamic simulation and optimum analysis of construction process |
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| ZHUANG Ning,ZHU Ku-zhu,LI Jun-wei.Research on partial pressure joint arch tunnel’s dynamic simulation and optimum analysis of construction process[J].Rock and Soil Mechanics,2009,30(9):2875-2880. | |
| Authors: | ZHUANG Ning ZHU Ku-zhu LI Jun-wei |
| Institution: | 1. College of Traffic, College of Ocean, Hohai University, Nanjing 210098, China; 2. Department of Civil Engineering, Guilin University of Technology, Guilin 541004, China; 3. China United Engineering Corporation, Hangzhou 310022, China |
| Abstract: | In order to simulate and make optimum analysis of partial pressure joint arch tunnel, a 3D finite element model is established. The simulation results are compared with the measured data in site. Arch crown settlement, stress and displacement of middle wall, plastic area distribution of surrounding rock, and variation of initial and secondary linings are analyzed. Then, the joint arch tunnel’s optimal construction sequence, the optimal construction space of two holes, the suitable construction method of cutting face and cycle length are determined by the simulation. The results provide a scientific basis and technical guidance for the construction optimization of partial pressure joint arch tunnel. |
| Keywords: | partial pressure joint arch tunnel 3D finite element model dynamic simulation construction optimization |
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