南京疏港公路近距离路堑开挖对栖霞山铁路隧道结构的影响研究  

Research on Effect of Excavation of Highway Through Cut on Structure of A Neighbouring Railway Tunnel

作　　者：刘洪洲[1] 

机构地区：[1]中交公路规划设计院,北京市100010

出　　处：《公路》2003年第5期142-146,共5页Highway

摘　　要：南京市龙潭港疏港一级公路在栖霞山铁路隧道北侧呈近距离平行延伸 ,挖方路基距离铁路隧道的最小净距仅为 11.9m ,按相关规范推算现有铁路隧道宽 9m ,高 8.5 m。为了确保施工期间沪宁铁路栖霞山隧道的正常运营 ,必须对设计路线给予正确合理的分析评估 ,以保证设计方案合理、参数取舍可行 ,最终对路堑的施工方法。The diversion highway of Dragon Port in Nanjing City is situated in the northern side of Xixiashan Railway Tunnel, the nearest net distance between the through cutting boundary and railway tunnel is 11.9 meters,and the railway tunnel is 9 m in width and 8.5m in height?In order to warranty the normal operation of railway, a series of related parameters of highway including construction scheme and construction method are analyzed by two dimension elastic-plastic FEM code, finally, some conclusions and suggestions about highway design and the excavation scheme of the through cut are presented.

关 键 词：南京疏港公路 路堑 栖霞山铁路隧道 线路设计 工程地质 开挖方式 破坏接近度 二维弹塑性施工力学 

分 类 号：U416.13[交通运输工程—道路与铁道工程] U459.1[建筑科学—桥梁与隧道工程]