六车道复合式中墙连拱隧道施工方法探讨  

Discussion on Construction Method for Double-arched Six-Lane Tunnel with Combined Central Wall

作　　者：任尚强[1] 

机构地区：[1]重庆交通科研设计院,重庆400067

出　　处：《地下空间与工程学报》2010年第2期354-357,共4页Chinese Journal of Underground Space and Engineering

摘　　要：双向六车道连拱公路隧道开挖跨度在34 m左右,其最大高度(含仰拱)12 m左右,从起拱线算起矢高为7.5 m,其单拱矢跨比最小为0.45。文章论述了六车道复合式中墙连拱隧道施工方法,提出保证隧道施工安全的关键技术措施,论述连拱隧道中导洞施工可为公路双连拱隧道设计施工提供指导。The excavation width of this double-arched tunnel with six lanes in two ways reaches 34m. The maximum height and the height above the apsidal line are 12m and7.5m respectively. The ratio of height to width is 0.45. This article expounds the construction method for double-arched six-lane tunnel with combined central wall, puts forward the key technology measure which guarantees the construction safety of the tunnel, for the purpose of providing guide line for design and construction of the double-arched tunnel.

关 键 词：公路 连拱隧道 六车道 施工方法 

分 类 号：U455[建筑科学—桥梁与隧道工程]