四洞并进特长、大跨、小净距隧道进洞及浅埋段施工浅析  

Analysis of the Construction of the Four-hole Parallel Extra-long,Long-span,and Small-distance Tunnel Entrance and Shallow Buried Section

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作  者:邹青 ZOU Qing(Railway Group 5 Mechanization of Engineering Limited Liability Company,Changsha,Hunan,410000,China)

机构地区:[1]中铁五局集团机械化工程有限责任公司,湖南长沙410000

出  处:《智能城市应用》2020年第1期110-115,共6页Smart City Application

摘  要:社会的发展进步,原有两车道公路很难满足现在车辆通行需求,需要扩宽至四车道。加上两侧辅路,大跨径隧道和四洞并进小净距隧道开始涌现。文章结合中铁五局机械化公司国道G316线A4标项目董奉山隧道出口进洞施工,总结了凝灰熔岩地段四洞并进、特长、超大跨径小净距隧道进洞及浅埋段施工方法、以及质量、安全控制的一些主要措施和施工过程中应注意的问题。With the development and progress of society,the original two lane highway is difficult to meet the current vehicle traffic demand,so it needs to be widened to four lanes.Coupled with auxiliary roads on both sides,large-span tunnels and four-hole parallel small-pitch tunnels have begun to emerge.Combined with the tunnel construction of Dongfengshan tunnel exit entrance in A4 section of G316 national highway of Railway Group 5 Mechanization of Engineering Limited Liability Company,this paper summarizes the construction methods of f four-hole parallel,extra-long,ultra-long-span small distance tunnel entrance and shallow buried section in tuff lava section,four-hole parallel,extra-long,ultra-long-span small clear-distance tunnel.

关 键 词:隧道 凝灰熔岩 四洞并进 特长、超大跨径 小净距 施工工艺 质量 安全控制 

分 类 号:U455.4[建筑科学—桥梁与隧道工程]

 

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