| 公路隧道内轮廓形状的数值优化 |
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| 引用本文： | 魏建军,蒋斌松.公路隧道内轮廓形状的数值优化[J].岩土力学,2006,27(Z1):369-372. |
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| 作者姓名： | 魏建军 蒋斌松 |
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| 作者单位： | 1. 徐州建筑职业技术学院 土木工程系，徐州 221008；2. 中国矿业大学 建筑工程学院，徐州 221008 |
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| 摘 要： | 以云南富广高速公路的老鹰咀隧道为实例，应用有限元数值方法对隧道砌衬的内力进行了模拟与分析。通过调整隧道仰拱和曲面墙的连接方式，来获取较为合理的隧道内轮廓形式。首先，基于围岩类型和初次衬砌的结构型式，建立了该隧道的数值模型，依据隧道规范实施加载，考虑了围岩的弹性抗力；然后，根据数值模拟结果，对原设计断面和添加了过渡圆的隧道断面的内力分布进行了讨论比较。优化结果为单洞大跨隧道的截面设计提供了理论依据。
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| 关 键 词： | 隧道 内轮廓 仰拱 围岩抗力 数值模拟 优化 |
| 收稿时间： | 2006-07-28 |
Numerical optimization of inner outline of highway tunnel |
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| WEI Jian-jun,JIANG Bin-song.Numerical optimization of inner outline of highway tunnel[J].Rock and Soil Mechanics,2006,27(Z1):369-372. |
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| Authors: | WEI Jian-jun JIANG Bin-song |
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| Institution: | 1. Department of Civil Engineering, Xuzhou Institute of Architectural Technology, Xuzhou 221008, China;
2. School of Architecture & Civil Engineering, China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | The internal force of Laoyingzui tunnel along Funing-Guangnan Highway in Yunnan Province is analyzed using the finite element method. The reasonable tunnel inner outline is obtained through adjusting the connecting method between invert pattern and curved wall.The model is developed based on structure and rock type; and the wall rock resistance is considered. The internal force of original design model and optimized model are compared and analyzed. The results provide a theoretical reference for section design of large-span tunnel. |
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| Keywords: | tunnel inner outline invert pattern wall-rock resistance numerical simulation optimization |
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