某特大型铀矿床三维立体分区方案研究

Three Dimensional Partition Scheme of a Super Large Uranium Deposit

通过对某特大型缓倾斜、多层铀矿床开采技术条件的分析研究,确定以人为境界划分法作为该矿床的井田划分原则。考虑走向长度和资源匹配情况,以H36勘探线为井田划分界限,一井的开采范围为H8~H36勘探线,二井的开采范围为H36~H72勘探线。基于3DMine软件平台,建立三维数字化矿床模型,结合矿体的形态特征,确定上、下采区的最佳分界线标高为850m,上部采区的竖向开采范围为1 030~850m,下部采区的竖向开采范围为850~670m,优选阶段高度为60m。

Through the analysis and research on the mining technical conditions of a super large gently inclined,multi-layer uranium deposit,and the principle of mine field division is determined for the artificial boundary division method.Considering the division of the field according to the strike length and the matching of resources,the H36 exploration line is used to define the boundary of the field.The mining range of first mine is H8~H36;the mining range of second mine is H36~H72.Based on the 3DMine software,a three-dimensional digital ore body model was established,and the morphological characteristics of the ore body were combined to determine the optimal boundary elevation of the upper and lower mining areas to be 850 m.Therefore,the vertical mining range of the upper mining area was determined to be 1030 m to 850 m,the vertical mining range of the lower mining area is determined to be 850~670 m,the optimal stage height is 60 m.