众所周知,深露天矿的开发和深水平的开采已不是新问题了,早在50～60年代就已在理论上提出过这些问题。60年代末就已明确了解决深露天开采的一系列基本方向。目前,这方面的大部分研究和设计工作是针对露天铁矿的条件进行的,起决定性的客观原因是:与其它部的矿山相比,露天铁矿的开采深度大,生产规模大以及其它一些因素。 As we all know, the development of deep open-pit mines and deep horizontal mining are no longer new problems. As early as the 1950s and 1960s, these problems have been raised theoretically. In the late 1960s, a series of basic directions for solving deep open pit mining have been clearly defined. At present, most of the research and design efforts in this area are based on the conditions of open-pit iron mines. The decisive objective reason is that the open-pit mines have a large exploitation depth and large scale of production as compared with other mines, and some others factor.