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根据宜万铁路W4标堰湾1#隧道进口(燕尾式隧道)、N6标白云山隧道进口、及准朔铁路ZSXS-2标赵家沟隧道进口(燕尾式隧道)监理工作经验,本文从施工监理角度出发,对燕尾式隧道中导洞连拱点预加固、连拱段和小间距段钻爆作业、中隔墙结
According to the supervision of Weihai Railway W4 Yuanyan Bay 1 # tunnel entrance (dovetail tunnel), N6 standard Baiyunshan tunnel entrance and ZSXS-2 standard Zhaoxia tunnel entrance (dovetail tunnel) supervision work, From the perspective of supervision, pre-reinforcement of the arch anodized tunnel in the dovetail tunnel, drilling and blasting operation with even arch section and small spacing section,