摘要
通过隧道大变形力学机制及防治措施理论,简要阐述了软岩及大变形的分类和大变形的支护措施。结合国内外12座典型隧道大变形案例分析认为:千枚岩、炭质页岩、变质砂岩等软弱岩体,在结构上岩体具原生结构的特点;喷锚支护是最常用和最成功的一种支护;对特定条件下的隧道大变形需采取特殊支护措施,特殊支护措施使用前景广阔,发展空间巨大。
Through the tunnel mechanism and prevention measures of large deformation mechanics theory,briefly expounds the classification of soft rock and large deformation and large deformation of supporting measures. In combination with 12 typical tunnels at home and abroad large deformation case analysis obtained that: phyllite,carbonaceous shale, metamorphic sandstone and weak rock mass,rock mass on the structure characteristics of the native structure. Spray anchor bracing is one of the most commonly used and most successful supporting. For large deformation of tunnel under certain conditions need special support measures,special support measures using prospect,huge space for development.
出处
《施工技术》
CAS
北大核心
2013年第S2期247-251,共5页
Construction Technology
基金
国家自然科学基金(41172279)
交通运输部西部交通建设科技项目(20113188051090)
关键词
隧道工程
软岩
变形
防治
tunnels
soft rock
deformations
prevention
