公路双连拱隧道中导洞施工技术措施

摘要

According to the introduction of the construction in Laocangpo No.5 tunnel along Yuanmo expressway,the paper illustrates the measures for the construction technique,including the drift tunneling,the excavation support,the lining and the waterproof,so as to have certain direction significance for the similar double-arch tunnel projects in future.%通过对元磨高速公路老苍坡5号隧道中导洞的施工介绍,阐述了公路连拱隧道中导洞进洞、开挖支护、衬砌、防水等施工技术措施,对今后同类双连拱隧道工程具有一定指导意义。