| 应用荷载释放系数法模拟黄土隧道施工 |
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| 引用本文： | 朱彦鹏,柴江,邵继新.应用荷载释放系数法模拟黄土隧道施工[J].兰州理工大学学报,2011,37(5):108-111. |
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| 作者姓名： | 朱彦鹏 柴江 邵继新 |
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| 作者单位： | 1. 兰州理工大学土木工程学院,甘肃兰州,730050
2. 甘肃建材科研设计院,甘肃兰州,730050 |
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| 基金项目： | 国家自然科学基金(50978129) |
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| 摘 要： | 针对新奥法施工的黄土隧道,应用大型通用有限元软件ANSYS模拟黄土隧道开挖支护的施工过程,采用荷载释放系数控制围岩的荷载释放,分析隧道施工对围岩及支护结构力学特性的影响.分析结果与工程实测结果的对比表明:采用荷载释放系数法能较为合理地模拟黄土隧道施工过程,得出围岩和支护结构连续受力变形的情况；建议在隧道施工过程中加强拱...
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| 关 键 词： | 新奥法 隧道开挖 荷载释放 变形 |
Simulation of loess tunnel construction with unloading coefficient approach |
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| ZHU Yan-peng,CHAI Jiang,SHAO Ji-xin.Simulation of loess tunnel construction with unloading coefficient approach[J].Journal of Lanzhou University of Technology,2011,37(5):108-111. |
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| Authors: | ZHU Yan-peng CHAI Jiang SHAO Ji-xin |
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| Institution: | ZHU Yan-peng1,CHAI Jiang1,SHAO Ji-xin2(1.College of Civil Engineering,Lanzhou univ.of Tech.,Lanzhou 730050,China,2.Gansu Research Institute of Building-Materials,China) |
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| Abstract: | Aimed at the loess tunnels constructed with new Austrian tunneling method,the process of excavation and supporting of the loess tunnel was simulated with the general finite element software ANSYS.The influences of the construction on the mechanical characteristics of the surrounding rock and lining structure was analyzed by means of controlling of unloading process with unloading coefficient method.Comparing the analysis data and the measured data,it would be shown that the use of unloading coefficient appr... |
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| Keywords: | new Austrian tunneling method tunnel excavation unloading deformation |
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