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一、前言 众所周知,煤田露天开采具有回采率高,开采规模大,机械化程度高,成本低,生产安全,效率高,木材消耗量低等特点。我国煤炭工业技术政策规定:露天开采是煤炭工业技术发展方向之一,对条件适宜,生产成本不高于矿井开采的煤田,应优先发展露天开采。因此,合理的确定露天开采境界和预留露天开采备用区,对煤田开发规划,露天开采设计,提高煤炭开发经济效益,有着重要的意义。
First, the preamble As we all know, open-pit coal mining has high recovery rate, large-scale mining, high degree of mechanization, low cost, production safety, high efficiency, low consumption of wood characteristics. China’s coal industry technical policies and regulations: open pit mining technology is one of the development direction of the coal industry, the conditions are favorable, the production cost is not higher than mine coal, should give priority to the development of open pit mining. Therefore, it is of great significance to determine the realm of open-pit mining and to reserve reserve for open-pit mining reasonably, which will be of great significance to the development planning of coalfields, the design of open-pit mining and the economic benefits of coal exploitation.