浅谈连拱隧道冲沟进洞方案  

Construction Technology of Double-Arch Tunnel in Gully Area

作　　者：段晓彬 张涛 钱伊默 郑勇 DUAN Xiao-bin;ZHANG Tao;QIAN Yi-mo;ZHENG Yong(Broadvision Engineering Consultants,Kunming 650041,China)

机构地区：[1]云南省交通规划设计研究院有限公司,昆明650041

出　　处：《工程建设与设计》2023年第3期110-112,共3页Construction & Design for Engineering

摘　　要：以楚姚高速公路陈家冲隧道为例,详细介绍了位于冲沟时连拱隧道进洞方案的选择、措施及施工,对比分析了明挖进洞、交错进洞及局部盖挖进洞3种方案的优缺点,对局部盖挖进洞的施工要点和措施进行详细阐述。Taking the Chenjiachong tunnel of Chuyao expressway as an example,this paper introduces in detail the selection,measures and construction of the tunnel entry scheme when it is located in the gully,compares and analyzes the advantages and disadvantages of open excavation scheme,staggered excavation scheme and partial cover excavation scheme,elaborates the construction points and measures of partial cover digging holes in detail.

关 键 词：连拱隧道 冲沟 进洞 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]