| 带裂纹隧道二次支护内设衬套补强效果的有限元分析 |
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| 引用本文： | 张玉军,李治国.带裂纹隧道二次支护内设衬套补强效果的有限元分析[J].岩土力学,2005,26(7):1058-1062. |
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| 作者姓名： | 张玉军 李治国 |
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| 作者单位： | 1. 中国科学院岩土力学重点实验室,武汉,430071
2. 中铁隧道集团有限公司科研所,河南,洛阳,471009 |
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| 摘 要： | 以平面有限元位移法对铁山隧道和大垭口隧道带裂纹二次支护内设钢筋混凝土衬套的补强效果进行了数值模拟。模拟结果表明:加了钢筋混凝土衬套后,可大大降低裂纹尖端的应力强度因子,显著地提高衬砌承载安全系数。
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| 关 键 词： | 隧道衬砌 裂纹 钢筋混凝土衬套 应力强度因子 平面有限元分析 |
| 文章编号： | 1000-7598-(2005)07-1058-05 |
| 收稿时间： | 2004-03-08 |
| 修稿时间： | 2004年3月8日 |
Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles |
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| ZHANG Yu-jun,LI Zhi-guo.Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles[J].Rock and Soil Mechanics,2005,26(7):1058-1062. |
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| Authors: | ZHANG Yu-jun LI Zhi-guo |
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| Institution: | 1. Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Scientific Institute of China Railway Tunneling Group, Luoyang 471009 , China |
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| Abstract: | The strengthening effects of reinforced concrete liner cover for tunnel lining with crackles are investigated,and the numerical simulations for two computations of Tieshan Tunnel and Dayakou Tunnel are carried out by using a 2D FEM code. The computation results show that the stress intensity factors at the crackle tips can be decreased greatly; and the bearing safety factors of the linings can be raised obviously. |
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| Keywords: | tunnel lining crackle reinforced concrete liner cover stress intensity factor two-dimensional finite element analysis |
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