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在当今的世界上大力发展露天采煤是高速发展煤炭工业的根本战略措施。近几十年来世界露天采矿业发展很快,大家都公认露天采矿具有产量大、劳动条件好、安全、生产效率高、相对基建期短、吨煤投资少、生产成本低、回采率高、还可回收井工开采过的浅部残煤(国外如捷克、国内如新邱),且易于实现生产过程的机械化、自动化和现代化等优点。
In today’s world to develop open-pit coal mining is the fundamental strategic measure for the rapid development of the coal industry. In recent decades, the open-pit mining industry in the world has been developing rapidly. It is generally acknowledged that open-pit mining has the advantages of large output, good working conditions, high safety, high production efficiency, short relative infrastructure period, low investment in ton coal, low production cost, high recovery rate, It can recover the shallow residual coal mined in the well (foreign countries such as Czech Republic and China as new Qiu) and can easily realize the mechanization, automation and modernization of the production process.