隧道穿越断层破碎带关键技术研究  

Technology of Tunnel Through the Fault Fracture Zone

作　　者：张优利 刘胜春[2] 梁顺[2] 周朋[2] 杨克文[2] 

机构地区：[1]象山县交通局,宁波315700 [2]北京交通大学隧道及地下工程教育部工程研究中心,北京100044

出　　处：《武汉理工大学学报（交通科学与工程版）》2013年第3期529-532,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家"973"重点基础研究发展计划项目(批准号:2010CB732100);铁道部科技研究开发计划重大项目(批准号:2009G005)资助

摘　　要：山岭隧道开挖过程中经常遇到断层破碎带,造成开挖、支护施工难度增大,并且容易出现安全事故,是隧道施工的薄弱环节.不同的工法对于围岩扰动程度是不一样的,围岩条件的弱化应该及时采取开挖支护措施的调整,只有合适的工法才能保证隧道施工安全与质量.结合浙江宁波史家山2号隧道,根据其地质特征,运用FLAC3D软件进行数值模拟,对比分析采用不同施工工法穿越断层破碎带的情况,得出了断层破碎带对于施工过程影响并对于合理施工方案的选择提出建议.Mountain tunnel excavation often encountered in fault fracture zone,resulting in that big difficult of the excavation and support construction and vulnerable to accidents.Different construction methods have different degree of disturbance to surrounding rock and excavation-support measures should be regulated for weak ground.Only suitable construction method can assure the safety and quality of tunnel construction.It is the weak link of the construction of the tunnel.With Shijiashan2 tunnel,according to its geological characteristics,use the FLAC3D software to carry out numerical simulation.Comparing the conditions with or without the fault fracture zone and different working methods,achieve the influence of fault fracture zone to construction process and propose the appropriate advice of construction programs.

关 键 词：穿越 断层破碎带 关键技术 

分 类 号：U238[交通运输工程—道路与铁道工程]