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国外煤炭工业发展的重要特点之一是采煤综合机械化,特别是大功率的采煤机械和自移液压支染的推广,产量和效率显著提高.煤矿生产机械化的致命弱点之一是不能适应地质情况的变化,当工作面出现断层或煤层变薄,采取措施可以继续生产时只是降低些产量.若采取措施采煤机组和液压支架仍不能通过时,则被迫更换一个新工作面,搬动机组和液压支架等必须停产和造成经济上的损失,此外在矿井开拓掘进及延深中,也有越来越多的地质问题需要解决.
One of the important features of foreign coal industry development is the comprehensive mechanization of coal mining, especially the promotion of high-power coal mining machinery and self-moving hydraulic dyeing, and the yield and efficiency are significantly raised.One of the fatal weaknesses of mechanization of coal mine production is that it can not adapt to geological When the working face is in fault or the coal seam is thinning, only the production can be reduced if measures are taken to continue the production.If measures are taken, the coal mining unit and the hydraulic support can not pass, it will be forced to replace a new face and move Unit and hydraulic support must be discontinued and cause economic losses. In addition, more and more geological problems need to be solved during the excavation and extension of mines.