双连拱隧道施工技术探讨

On exploration for double-arch tunnel construction technique

分析了双连拱隧道开挖施工工艺,得出在地质条件允许条件下应首选中导洞法施工,对中导洞及中隔墙施工中的关键技术进行了分析,并针对隧道中常见的防排水问题,提出了相应的防治措施,对今后同类隧道工程施工具有积极的指导意义。

The paper analyzes the construction craft for the double-arch tunnel excavation, concludes that the guiding hole method can be adopt- ed under the allowed geological conditions, analyzes the key technique in the construction of the guiding hole method and during the construction of the mid-partition project, and points out relative prevention measures according to the common problems for the water-proof and drainage problems in tunnels, so as to have the active direction meaning for similar tunnel projects.