杭金衢高速公路新岭隧道改扩建设计  

Reconstruction and expansion design of Xinling tunnel on Hangjinqu Expressway

作　　者：郑军华 丁海洋 Zheng Junhua;Ding Haiyang(Zhejiang Provincial Institute of Communications Planning,Design&Research Co.,Ltd.,Hangzhou 310031,China)

机构地区：[1]浙江数智交院科技股份有限公司(浙江省交通规划设计研究院),浙江杭州310031

出　　处：《山西建筑》2021年第15期139-142,共4页Shanxi Architecture

摘　　要：为解决公路隧道改扩建项目中改扩建方式、车道数、隧道合理净距、开挖工法及监控量测方案等方面遇到的问题,以浙江杭金衢高速新岭隧道改扩建工程为依托,采用三维数值模拟法,最终采用两侧三车道扩建方案,新旧隧道间合理净距按30 m控制。为同类型的隧道改扩建设计、施工积累了经验,对于相似工程具有参考价值。In order to solve the problems of reconstruction and expansion mode,number of lanes,reasonable clear distance of the tunnel,excavation method and monitoring scheme in highway tunnel reconstruction and expansion project,based on the reconstruction and expansion project of Xinling tunnel on Hangjinqu Expressway in Zhejiang Province,the three dimensional numerical simulation method was used.Eventually,the expansion scheme of three lanes on both sides is adopted,and the reasonable clear distance between the new and old tunnels is controlled by 30 m.It has accumulated experience for the design and construction of the same type of tunnel reconstruction and expansion,and has reference value for similar projects.

关 键 词：改扩建 隧道 合理净距 加宽方式 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]