| 兰渝铁路软岩隧道特征及大变形控制技术 |
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| 引用本文： | 孙绍峰.兰渝铁路软岩隧道特征及大变形控制技术[J].现代隧道技术,2012,49(3):125-130. |
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| 作者姓名： | 孙绍峰 |
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| 作者单位： | 兰渝铁路有限责任公司,兰州,730000 |
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| 摘 要： | 高地应力软岩隧道挤压大变形是困扰隧道建设者的突出难题,也是国内外隧道工程界普遍关注的焦点和难点问题之一。文章通过在兰渝铁路软岩隧道施工中开展的大量科研现场试验和工程验证,对软岩隧道的工程地质特征、地应力特征、变形特征、支护压力及应力特征、支护破坏特征进行了系统分析,并在此基础上提出了针对性的设计控制措施和施工控制措施,以保障隧道施工安全和工程质量。
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| 关 键 词： | 软岩隧道 围岩特征 现场试验 变形控制 |
Characteristics of Soft Rock Tunnels and Large Deformation Control Technology in the Lanzhou-Chongqing Railway |
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| Sun Shaofeng.Characteristics of Soft Rock Tunnels and Large Deformation Control Technology in the Lanzhou-Chongqing Railway[J].Modern Tunnelling Technology,2012,49(3):125-130. |
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| Authors: | Sun Shaofeng |
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| Institution: | Sun Shaofeng(Lanyu Rrailway Limited Liability Company,Lanzhou,730000) |
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| Abstract: | Squeezing deformation is one of the difficulties encountered in soft rock tunnels with high ground stress,and this subject has obtained much attention in the field of tunneling both at home and abroad.Based on the field tests and engineering verification performed for the soft rock tunnel on the Lanzhou-Chongqing railway,this paper analyzes the relevant characteristics of engineering geology,crustal stress,deformation,support pressure,stress,and support damage.Specific measures for design and construction are put forward. |
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| Keywords: | Soft rock tunnel Characteristics Site test Controlled deformation technique |
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