| Rock Pressure on Tunnel with Shallow Depth in Geologically Inclined Bedding Strata |
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| 作者姓名： | 周晓军 李泽龙 杨昌宇 高扬 |
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| 作者单位： | [1]School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China [2]The 2nd Survey and Design Institute of China Railway, Chengdu 610031, China |
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| 基金项目： | The project of the Science and Technology Department of China Railway Ministry （No. 2001G008-1）, and the Visiting Scholar Foundation of Key Laboratory for the Exploration of Southwestern Resources and the Environment Disaster Control Engineering in Chongqing University （ No. 20033-3） |
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| 摘 要： | Introduction Ithasbeenpracticallyprovedthatthecorrect analysisandcomputationoftheloadsinducedby rockmassandpressuresexertedontunnelstructureare prerequisitestomakearationalstructuredesignand ensurethesecurityoftunnelingroundstrata1-5].Whenatunnelistobede…
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| 关 键 词： | 岩石压力 隧道 地层勘测 施工方法 |
| 文章编号： | 1005-2429（2006）01-0052-11 |
| 收稿时间： | 2005-04-11 |
Rock Pressure on Tunnel with Shallow Depth in Geologically Inclined Bedding Strata |
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| Zhou Xiaojun,Li Zelong,Yang Changyu,Gao Yang.Rock Pressure on Tunnel with Shallow Depth in Geologically Inclined Bedding Strata[J].Journal of Southwest Jiaotong University,2006,14(1):52-62. |
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| Authors: | Zhou Xiaojun Li Zelong Yang Changyu Gao Yang |
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| Abstract: | The method to calculate rock pressure to which the lining structure of tunnel with shallow depth is subjected in geologically inclined bedding strata is analyzed and put forward. Both the inclination angle of bedding strata as well as the internal friction angle of bedding plane and its cohesion all exert an influence upon the magnitude of the asymmetric rock pressure applied to tunnel. The feature that rock pressure applied to tunnel structure varies with the incUnation angle of bedding strata is discussed, At last, the safety factor, which is utilized to evaluate the working state of tunnel lining structure, is calculated for both symmetric and asymmetric lining structures. The calculation results elucidate that the asymmetric tunnel structure can be more superior to bear rock pressure in comparison with the symmetric one and should be adopted in engineering as far as possible. |
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| Keywords: | Rock pressure Tunnel lining structure Inclined bedding strata Cohesion of bedding Internal friction angle Safety of tunnel structure |
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