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目前,地下矿山每年要开采5000多万m~3矿岩,掘进2000多km 巷道。金属矿床地下开采的矿山地质条件在日趋复杂。地质构造复杂的矿体在投入开采,矿床开采深度在加大,地压的危险动态显现在不断发生。矿岩的稳定性差因而高效率采矿方法的应用不可能,阻碍了高效率技术和高强度工艺在地下矿山的应用,其结果,导致矿石回收率指标的恶化,地下作业劳动强度的加大和开采
At present, underground mines each year to mining more than 50 million m ~ 3 ore, tunneling more than 2000 km roadway. Geological conditions of underground mining of metal deposits are increasingly complex. Complex geological structure of the ore is put into mining, mining depth is increasing, the dangerous dynamic of ground pressure appears constantly. Due to the poor stability of the ore rock, the application of high efficiency mining methods is not possible, which hinders the application of high-efficiency and high-intensity processes in underground mines. As a result, the ore recovery rate is deteriorated, the labor intensity of underground operations is increased,