施工技术 2016年9月上 124 CONSTRUCTION TECHNOLOGY 第45卷第17期 D01:10.7672/8gjs2016170124 软岩大变形隧道变形规律及控制措施 邓启华 (中铁二十二局集团有限公司，北京100043) [摘要]软岩隧道工程地质条件复杂，具有大变形特点，长期以来一直是工程界研究的重点和难点.宝峰隧道穿越 第三纪弱胶结、强风化地层，地下水丰富，多次发生坍塌和突水突泥.根据工程地质勘察、超前地质预报、隧道监控 量测和大量试验结果，将隧道分为浅埋沟壑型、断层破碎带型和炭质泥岩3类，并分别制订施工方案，进行工程应 用和验证，有效控制了隧道变形，取得良好效果. [关键词]隧道工程；软岩隧道；膨胀性；变形；控制方法 [中图分类号]U456 [文献标识码]A [文章编号]1002-8498(2016)17-0124-03 Deformation Law and Control Measures in Soft Rock Tunnel with Large Deformation Deng Qihua China Railway 22nd Bureau Group Go. Lad.Beijing 100043 China) Abstract:Engineering geological conditions of soft rock tunnel with large deformation characteristics are plex which has been the focus and difficulty of engineering research.Baofeng Tunnel passes through the Tertiary weak cemented strongly weathered strata and rich groundwater in which collapse and water and mud outburst occur repeatedly.Based on engineering geological investigation geological prediction monitoring and measuring of tunnel and a number of test results the type of tunnel deformation is divided into shallow gully type fault fracture zone type and carbonaceous mudstone type in this paper. Construction program is made and applied which effectively controls the deformation of the tunnel and good results are achieved. Key words:tunnels;soft rock tunnels;expansion;deformation;control method 0引言 工程自身的特殊性，研究隧道围岩变形机理，提出 软岩基本特性主要表现为强度低、易风化、孔防治措施. 隙比大、重度小、易渗水，具有显著的膨胀性和明显1工程概况 的时效特性，往往对隧道施工安全和工期造成严重 昆玉铁路宝峰隧道下穿高速段位于滇泄盆地 影响.国内外学者对软岩隧道大变形及控制技术 与玉溪盆...
软岩大变形隧道变形规律及控制措施.pdf
