高速公路偏压浅埋隧道进洞施工工艺  

The Tunnel Entering Construction Technology for Biased-pressure Shallow-buried Tunnel on Expressway

作　　者：唐金 TANG Jin(Hunan Sunshine Municipal Construction and Development Co.,Ltd.,Changsha 410001,Hunan,China)

机构地区：[1]湖南尚上市政建设开发有限公司,湖南长沙410001

出　　处：《工程技术研究》2024年第12期57-59,共3页Engineering and Technological Research

摘　　要：文章根据檀树湾隧道的实际情况,对浅埋偏置隧道的开挖顺序和支护方案进行了研究。主要介绍了洞头仰拱的施工工艺、长管棚、超前小导管、钢拱架的施工工艺。此外,套拱施工措施也是关键,它通过多个钢环形成一个整体拱架来支撑隧道结构,从而提高隧道稳定性和耐久性。工程实践证明,该隧道进洞施工技术取得了较好效果。According to the actual situation of Tanshuwan tunnel,the excavation sequence and support scheme of shallow-buried offset tunnel are studied,mainly introducing the construction technologies of tunnel entrance inverted arch,long pipe roof,advance ductule,and steel arch frame.In addition,the cover arch construction measure is also the key,which supports the tunnel structure by forming an integral arch frame with multiple steel rings,thereby improving the stability and durability of the tunnel.Engineering practice has proved that the tunnel entering construction technology has achieved good results.

关 键 词：高速公路 隧道洞口 长管棚 超前小导管 

分 类 号：U418[交通运输工程—道路与铁道工程]