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一、前言湘西金矿是国家重要黄金生产基地之一。该矿于1981年经省冶金厅批准对冶炼厂下方矿柱16万吨和压风机房、浓密机池下方矿枉5.6万吨进行试采的可行性研究。现已提出建筑物下可采出85％以上的矿量。对于象这种较复杂(有4条矿脉)和不连续的矿块能采出如此之多是罕见的(一般只能达50—60％)。当然,要达到这个目的,必须对开采引起的地表移动在作出科学预计基础上才能实现。本研究报告是应用长沙矿冶研究院于1986年以来新建立的随机介质理论预计倾斜矿体开采的地表移动空间问题,它对建筑物下矿柱回采奠定了初步基础。
I. Introduction The Xiangxi Gold Mine is one of the country’s major gold production bases. The mine in 1981 by the provincial Metallurgical Department approved the smelter down 160,000 tons of ore pillars and pressure room, thickened pool below 56,000 tons for trial mining feasibility study. It has been proposed that more than 85% of the mine can be mined under the building. It is rare for such a complex (4-legged) and discontinuous nuggets to be produced so much (typically only 50-60%). Of course, for this purpose, surface movement caused by mining must be realized on the basis of a scientific prediction. This research report is based on the stochastic medium theory newly established by Changsha Research Institute of Mining and Metallurgy since 1986 to predict the surface movement space for the mining of inclined orebody. It laid the preliminary foundation for the pillar mining under buildings.