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隧道施工中,铁路系统在研制、推广和运用机械化作业线上取得了一定成绩。就目前钻爆法施工来看:由于光面爆破、液压钻车和喷混凝土等技术的应用,使缩短开挖时间的主要矛盾转化到出碴这个环节,尤其当采用有轨运输方案,进行导坑高速掘进时,能否选用新型高效连续的岩渣装载机(例如立爪装载机、蟹爪装载机等)是加速施工进度,确保竣工工期的关键因素。一、用钻爆法机械化施工对岩碴装载机的要求。我国铁路隧道以分部开挖法为主,一般
During the construction of the tunnel, the railway system has achieved certain achievements in the development, promotion, and application of mechanized operation lines. As far as drilling and blasting methods are concerned, due to the application of smooth blasting, hydraulic drilling rigs, and shotcrete technology, the main contradiction of shortening the excavation time has been transformed into this link, especially when adopting a rail transport program. When high-speed boring is carried out, whether or not a new type of high-efficiency continuous rock loader (such as a claw loader, crab claw loader, etc.) can be used is a key factor in accelerating the construction progress and ensuring the completion of the construction period. First, the drilling and blasting method is used to mechanize the construction of the rock loader. China’s railway tunnels are mainly based on excavation methods, generally