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近些年来我国的采矿工业面临着发展过程中的一个新时期,矿山开采逐渐向深部发展,如开滦煤矿的平均开采深度已达700米左右,其中马家沟矿已达1028米,赵各庄矿最深已达1058米。其它的矿山,如北票煤矿、枣庄煤矿及现已闭坑的石咀子铜矿等,其最大开采深度亦接近或已达到1000米左右,红透山铜矿等有色金属矿山的开采深度不久亦将超过1000米。露天开采亦逐渐向深凹露天矿发展,目前的最大开挖深度已达300米左右,设计最大开挖深度近500米左
In recent years, China’s mining industry is facing a new era in the development process. Mining has gradually developed into a deep area. For example, the average mining depth of Kailuan Coal Mine has reached about 700 meters, of which Majiagou Mine has reached 1028 meters. Zhao The deepest mine has reached 1058 meters. Other mines, such as Beipiao Coal Mine, Zaozhuang Coal Mine and Shizuizi Copper Mine which are now closed, have also reached a maximum mining depth of about 1,000 meters. The mining depth of the Hongtoushan copper mine and other non-ferrous metal mines has reached a certain depth Will also be more than 1000 meters. Open pit mining is also gradually to the deep open pit development, the current maximum depth of excavation has reached 300 meters, the maximum design depth of excavation nearly 500 meters