| 不同跨度公路隧道岩石加固承载拱结构受力分析 |
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| 引用本文： | 王胜辉,张莉.不同跨度公路隧道岩石加固承载拱结构受力分析[J].西部探矿工程,2008,20(7):154-158. |
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| 作者姓名： | 王胜辉 张莉 |
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| 作者单位： | 1. 国家开发银行湖南省分行,湖南,长沙,410007
2. 浙江工业大学,浙江,杭州,210094 |
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| 摘 要： | 目前公路隧道普遍采用喷锚支护体系,将在岩石承载拱以下形成次生的岩石加固承载结构,该次生承载结构的受力如何以及如何设计该次生结构即锚喷支护设计问题,是一个值得探讨的问题.随着隧道跨度的增大,隧道的稳定性将降低,次生岩石加固承载结构的受力情况的变化应是主导因素.在假定公路隧道的次生岩石加固承载结构为圆弧拱的条件下,研究了随着隧道跨度的增大,其岩石圆弧加固承载拱的受力问题,并对如何提高大跨度公路隧道岩石加固承载拱的稳定性提出了一些建议.
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| 关 键 词： | 公路隧道 岩石加固承载结构 围岩压力 圆环拱 大跨度 不同跨度 公路隧道 岩石加固 结构受力分析 Span Different Tunnel Highway Arch Rock Reinforced Analysis 大跨度 圆弧拱 研究 条件 主导因素 变化 受力情况 稳定性 |
| 文章编号： | 1004-5716(2008)07-0154-05 |
Mechanical Analysis on Reinforced Rock Arch in Highway Tunnel of Different Span |
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| WANG Sheng-hui,ZHANG Li.Mechanical Analysis on Reinforced Rock Arch in Highway Tunnel of Different Span[J].West-china Exploration Engineering,2008,20(7):154-158. |
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| Authors: | WANG Sheng-hui ZHANG Li |
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| Affiliation: | WANG Sheng-hui1,ZHANG Li2 (1.China Development Bank Hunan Branch,Changsha Hunan 410007,China,2.Zhejiang Unversity of Technology,Hangzhou Zhejiang 210094,China) |
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| Abstract: | Shotcrete and bolting is a common support system used in highway tunnel,and this support system will produce a derived reinforced rock arch under the natural rock arch,how about the mechanical conditions in the derived reinforced rock arch and how to design the derived reinforced rock arch also how to design the shotcrete and bolting support system are deserved to be studied.The stability of tunnel will decrease as its span increases,the change of mechanical condition in the derived reinforced rock arch sho... |
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| Keywords: | highway tunnel the derived reinforced rock arch ground pressure circular arch super-span |
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