大跨度偏压隧道双侧壁导坑法施工方案的优化及效果分析  

Comparative analysis and optimization on double sidewall drift in large span unsymmetrically loaded tunnel

作　　者：刘昆赟[1] 吴永军[1] 杨元洪[1,2] 

机构地区：[1]国家林业局昆明勘察设计院,昆明650216 [2]中南大学土木工程学院,长沙410075

出　　处：《林业建设》2014年第1期45-50,共6页Forestry Construction

摘　　要：以京珠复线长(沙)湘(潭)高速公路邓家湾隧道为依托,通过数值计算对双侧壁导坑法原设计方案和优化方案进行对比,确定了最优方案应用于施工。现场施工与监测显示,该方案确保了隧道施工安全,加快了施工进度,因而是合理可行的。施工方案的优化,完善了双侧壁导坑法施工工艺,可为类似大跨偏压隧道的施工提供参考。Based on Deng Jia Wan tunnel Construction in Changsha-Xiangtan expressway it carries out comparative analysis and optimization of double sidewall drift method among original design scheme and optimization scheme through numerical calculation, the optimum scheme was applied to construction. Site monitoring displays that the method ensures the safety of tunnel construction, meanwhile, it speeds up the progress of tunnel construction, so it is reasonable and feasible. It perfects the construction of double sidewall drift method technology, and offers useful references for similar large span unsymmetrically loaded tunnel.

关 键 词：隧道 双侧壁导坑法 数值计算 优化 监测 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]