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AF321型液压工作平台是我国自行研制的CTJY12·3型全液压轮胎式掘进钻车的主要配套产品(图1)。它主要用于大型隧道、巷道、涵洞及地下硐室等机械化施工中进行顶板处理、划线、装药、安装锚杆等辅助作业。也可与装有液压动力站的载重汽车或其它车辆组装成工程车,用来架修线路、安装设施及其它高空作业。该平台与CTJY12·3型钻车一起,于1987年4月25日在溪-田线八盘岭隧道完成了全断面掘进450米的工业试验,并于1987年8月27日通过了部级
AF321 hydraulic work platform is our own developed CTJY12 · 3 full hydraulic tire boring drill main supporting products (Figure 1). It is mainly used in large tunnels, roadways, culverts and underground chambers and other mechanized construction of the roof processing, marking, charging, installation of anchor and other auxiliary operations. It may also be assembled into a construction vehicle with a truck or other vehicle equipped with a hydraulic power station for repairing lines, installing facilities and other aerial work. The platform, together with the CTJY12.3 drilling rig, completed the industrial test of full-face excavation of 450 meters on April 25, 1987 in the Bachimping Tunnel of the Xi-Bei line and passed the ministerial level on August 27, 1987