剪刀叉匝道在城市地下快速路中的应用  

Application of Scissor Ramp of Underground Expressway in Urban Area

作　　者：薛卫新 XUE Weixin(Shanghai Construction Infrastructure Co.,Ltd,Shanghai 200086,China)

机构地区：[1]上海基础设施建设发展(集团)有限公司,上海200086

出　　处：《交通与运输》2021年第3期32-36,共5页Traffic & Transportation

摘　　要：为缓解城市市区的交通压力,城市地下快速路建设日益广泛。针对杭州文一路地下通道中间匝道建设中面临的城市环境保护难题,对原方案进行优化设计,调整匝道及工作井布置方案和出入地面交通组织,提出剪刀叉匝道方案。该方案结合隧道断面压缩、工作井布置等各方面条件,对隧道中段明挖区间内的2对平行匝道布置形式进行优化。优化方案将传统地下快速路匝道明挖段基坑开挖长度由860 m减少到685 m,有效减少地下通道施工对周边建构筑物、交通、居民的影响,更有利于交通安全,可为类似条件下的地下通道匝道设计提供有益的借鉴和参考。In order to alleviate the traffic pressure in urban areas,the construction of urban underground expressway is becoming more and more extensive.In order to solve the problem of urban environmental protection in the construction of middle ramp of Wenyi Road underground passage in Hangzhou,the scheme of scissors ramp is proposed.By compressing the tunnel section and adjusting the working shaft layout,the traditional parallel layout ramp is optimized into the scissors layout ramp.The excavation length of the open cut foundation pit of the underground expressway ramp is reduced from 860m to 685m,which effectively reduces the impact of the underground passage construction on the surrounding buildings,traffic and residents,and is more conducive to traffic safety.It can provide a useful reference for the design of the underground passage ramp under similar conditions.

关 键 词：地下快速路 剪刀叉匝道 匝道设计 地下通道工程 城区建设 

分 类 号：U491[交通运输工程—交通运输规划与管理]