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大冶铁矿是武钢的重要原料基地之一。东露天采场是大冶铁矿的主要采场,设计规模年产矿石290万吨。从1958年投产至1980年末,该采场己采出设计范围内矿量的77.1％。随着采场开拓工程的向下延深,所能采出的矿量则越来越少。依据东露天地质资源埋藏条件和采矿技术的发展,从1981年开始至1985年底,我们对东露天采场进行了非预见性的二期扩帮延深开采过渡。
Daye iron ore is one of WISCO’s important raw materials base. East open pit is the main stope of Daye Iron Mine, with a designed annual output of 2.9 million tons of ore. It was put into operation from 1958 to the end of 1980, and the stope had collected 77.1% of the ore within the designed range. With the deepening of the stope opening up project, the amount of ore that can be extracted is less and less. According to the burial conditions of eastern open-air geological resources and the development of mining technology, from 1981 to the end of 1985, we carried out the unforeseen phase-2 expansion of the east open pit.