| 浅埋软弱围岩双连拱隧道合理复合衬砌研究 |
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| 引用本文： | 伍振志,王剑军.浅埋软弱围岩双连拱隧道合理复合衬砌研究[J].公路交通科技,2007,24(2):94-98. |
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| 作者姓名： | 伍振志 王剑军 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092
2. 扬州市市政工程有限公司,江苏,扬州,225002 |
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| 摘 要： | 结合某隧道出口浅埋软弱段工程,采用荷载-结构-弹性抗力模式对隧道支护结构承载能力进行了计算与分析,在此基础上,采用数值分析方法,对隧道初期支护结构与围岩的刚度耦合关系进行了研究,给出了喷射混凝土层不同厚度下的应力变化取值和钢拱架采用不同钢型参数对支护效果的影响取值,并据此对隧道初期支护设计参数提出修正意见。此外,论文还对连拱隧道合理二衬参数进行了探讨。
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| 关 键 词： | 浅埋软弱围岩 双连拱隧道 复合衬砌 |
| 文章编号： | 1002-0268(2007)02-0094-05 |
| 修稿时间： | 2005-09-01 |
Study on Reasonable Composite Lining of Multi-arch Tunnel in Shallow Soft Stratum |
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| WU Zhen-zhi,WANG Jian-jun.Study on Reasonable Composite Lining of Multi-arch Tunnel in Shallow Soft Stratum[J].Journal of Highway and Transportation Research and Development,2007,24(2):94-98. |
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| Authors: | WU Zhen-zhi WANG Jian-jun |
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| Institution: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Yangzhou Municipal Engineering Co. Ltd., Jiangsu Yangzhou 225002, China |
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| Abstract: | Combining with the tunneling of exit on certain multi-arch tunnel in shallow and soft stratum,the structure-load-elastic reaction model was employed to analyze the bearing capacity of the tunnel support system.A coupling analysis was conducted with respect to the relationship between the stiffness of surrounding rock and support system using FEM,the stress of shotcrete of various thickness and the relationship between steel frame parameters and its support effect was obtained.Based on the above work,the reasonable initial support parameter was proposed.In addition,the reasonable secondary lining was discussed in the paper as well. |
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| Keywords: | shallow soft stratum multi-arch tunnel composite lining |
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