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。
Squeezing deformation is one of the difficulties encountered in stress, and this subject has obtained much attention in the field of tunneling the field tests and engineering verification performed for the soft rock tunnel soft rock tunnels with high ground both at home and abroad. Based on 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.
出处
《现代隧道技术》
EI
北大核心
2012年第3期125-130,共6页
Modern Tunnelling Technology
关键词
软岩隧道
围岩特征
现场试验
变形控制
Soft rock tunnel
Characteristics
Site test
Controlled deformation technique
