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甘肃地矿局第三队一分队是在探矿二队机掘队基础上扩大组成的机掘队。从81年起，在2×2米~2的小断面坑道掘进中推广使用凿岩台车、梭式矿车、牵引机车和装岩机（以下简称“三车一机”）以来，已掘进坑道1436.26米。在中深坑道中实现了机械化作业，劳动生产率显著提高，单位成本已较大幅度的下降。今年在马家山矿区施工4.66个台月，掘进坑道782.9米，队月平均效率为168.03米，为年计划的133.36％，最高台月效率217.02米，单位进尺成本379.73元，按计划降低12.3％，做到了安全生产，深受工人们的欢迎。
The third unit of Gansu Bureau of Geology and Mineral Resources team is based on the expansion of prospecting team two dig team composed of the machine dig team. Since 81, excavation of tunnels has been carried out in the tunneling of 2 × 2m ~ 2 small section tunnels with drilling rigs, shuttle trailers, traction locomotives and rock filling machines (hereinafter referred to as “three cars and one machine”) 1436.26 meters. Mechanized operation was realized in Zhongshenkengdao, labor productivity was significantly increased, and unit costs had dropped substantially. This year in Majiashan mine construction 4.66 months, excavation tunnel 782.9 meters, the team average monthly efficiency of 168.03 meters, 133.36% annual plan, the maximum efficiency of 217.02 meters per month, the unit footage costs 379.73 yuan, according to the plan to reduce 12.3% Achieved safe production, welcomed by the workers.