| 浅埋破碎地层隧道施工方法研究 |
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| 引用本文： | 乔春江,陈卫忠,王辉,田洪铭,谭贤君.浅埋破碎地层隧道施工方法研究[J].岩土力学,2011,32(Z2):455-462. |
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| 作者姓名： | 乔春江 陈卫忠 王辉 田洪铭 谭贤君 |
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| 作者单位： | 1．中国科学院 武汉岩土力学研究所，武汉 430071；2．中交第二公路勘察设计研究院有限公司，武汉 430056； 3．山东大学 岩土与结构工程研究中心，济南 250061 |
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| 基金项目： | 国家自然科学基金重大国际合作项目(No.50720135906);国家自然科学基金(No.41072238,51004097) |
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| 摘 要： | 西藏扎墨公路嘎隆拉隧道所处地域地质条件复杂，受地质构造的影响，隧道口地层节理裂隙特别发育、岩石强度低，围岩自稳能力差，给隧道的施工安全带来很大影响。通过数值仿真研究破碎地层采用全断面、台阶法和CD法施工时围岩和支护结构稳定性，提出适合嘎隆拉隧道破碎围岩地层特点的三台阶开挖法。在此基础上，运用三维数值仿真计算嘎隆拉隧道三台阶法开挖过程中的围岩稳定性，研究隧道开挖时围岩和衬砌的受力变形情况。研究成果为该隧道施工和同类工程建设提供了理论依据和实践经验
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| 关 键 词： | 嘎隆拉隧道 破碎围岩 数值仿真 施工方法 |
| 收稿时间： | 2011-05-13 |
Study of construction method of tunnel in shallow broken rock mass |
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| QIAO Chun-jiang,CHEN Wei-zhong,WANG Hui,TIAN Hong-ming,TAN Xian-jun.Study of construction method of tunnel in shallow broken rock mass[J].Rock and Soil Mechanics,2011,32(Z2):455-462. |
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| Authors: | QIAO Chun-jiang CHEN Wei-zhong WANG Hui TIAN Hong-ming TAN Xian-jun |
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| Institution: | 1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Second Highway Consultants Co., Ltd. of China Communications Construction Corporation, Wuhan 430056, China; 3. Geotechnical & Structural Engineering Research Center, Shandong University, Jinan 250061, China |
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| Abstract: | The Galongla tunnel of Zhamo Highway in Tibet was constructed under complex geological conditions and influenced by geological structure.Joint and cracks of stratum in the tunnel portal are developed extremely.The main characteristics of surrounding rock are low strength and bad self-stability which have great influence on the safety of tunnel construction.Through numerical simulation,the stability of surrounding rock and supporting structure is studied by using whole section method,bench method and CD meth... |
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| Keywords: | Galongla tunnel broken rock mass numerical simulation construction method |
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