冶金矿山,尤其是有色金属矿山,以中小型和坑内开采方式占多数。目前矿石、废石、材料及设备的运输大多采用有轨运输。其它如煤矿、化工矿山、建筑材料矿山等电与冶金矿山相类似,因此,窄轨矿车仍然是目前坑内运输的主要设备。解放后,由于采掘工业发展的需要,出现 Metallurgical mines, especially non-ferrous metal mines, make up the majority of small and medium-sized and intra-pit mining methods. At present, ore, waste rock, materials and equipment are mostly transported by rail. Others such as coal mines, chemical mines and building materials mines are similar to metallurgical mines. Therefore, narrow-track mines are still the major equipment for pit transportation at present. After the liberation, due to the development of extractive industries, there emerged