| 地下气库(LPG)洞室围岩稳定性数值分析 |
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| 引用本文： | 刘红军,刘泉维,王秀海,王本洲.地下气库(LPG)洞室围岩稳定性数值分析[J].中国海洋大学学报(自然科学版),2007,37(3):469-474. |
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| 作者姓名： | 刘红军 刘泉维 王秀海 王本洲 |
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| 作者单位： | 1. 中国海洋大学海洋环境与生态教育部重点实验室,山东,青岛,266100
2. 青岛市黄岛区国土资源局,山东,青岛,266500 |
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| 摘 要： | 地下气库的围岩稳定性关系到地下气库的安全与使用。影响地下洞室稳定的因素很多,解析法虽然可以得到精确解,但是只能针对圆形洞室。而数值计算方法可以计算各种情况下围岩的应力、变形、塑性分布等情况。利用有限元分析软件分析了洞室形状对围岩稳定性的影响,确定了合理的洞形;讨论了围岩应力应变随深度的变化规律,以及不同的支护类型对围岩变形的影响,确定了经济合理的支护类型。最终为该地质条件下的洞室围岩稳定设计提供了依据。
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| 关 键 词： | 地下气库 有限元 洞室形状 衬砌 锚喷支护 |
| 文章编号： | 1672-5174（2007）03-469-06 |
| 修稿时间： | 2006-10-172007-01-08 |
Numerical Analysis of Wall Rock in an Underground LPG Tunnel |
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| LIU Hong-Jun,LIU Quan-Wei,WANG Xiu-Hai,WANG Ben-Zhou.Numerical Analysis of Wall Rock in an Underground LPG Tunnel[J].Periodical of Ocean University of China,2007,37(3):469-474. |
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| Authors: | LIU Hong-Jun LIU Quan-Wei WANG Xiu-Hai WANG Ben-Zhou |
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| Institution: | 1. Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; 2. Huangdao Bureau of National Land Resources, Qingdao 266500, China |
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| Abstract: | Influenced by various factors,the stability of wall rock in an underground LPG tunnel is of vital importance to its safe service. With analytical methods exact solutions can be obtained,which are applicable to round-shaped tunnels only;while numerical methods can be applied to the calculation of stress,deformation and plasticity distribution for various tunnel shapes.In this paper,FEM software is applied to analyze the influence of tunnel shape on the wall stability of rock to determine a reasonable tunnel shape;the distributions of stress and strain along depth and the influence of support type on wall rock deformation are discussed to determine an economical and reasonable support type;and hence a sound basis for stability design of tunnel wall rock under a given geological condition is established. |
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| Keywords: | underground LPG tunnel FEM(finite element method) tunnel shape lining support |
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