内蒙古某钼矿体三维建模的研究

Research on 3D Modeling of a Molybdenum Ore Body in Inner Mongolia

建立矿体的三维模型,实现矿体三维可视化,对矿山提高资源的利用率、科学地安排生产进度等具有重要的意义。为实施内蒙古某钼矿体三维建模,借助Surpac软件,利用“内蒙古某矿区铅锌银钼矿”地质资料,建立了该矿的实体模型和块体模型。针对环带状矿体直接利用普通克立格法品位估值时遇到的问题,采取将环带状矿体分割成子矿体,然后再对各子矿体分别估值的方法。估值时基于地质统计学,应用Surpac模拟出了各变异函数参数的取值。估值结果表明:环带状矿体分割后,再采用普通克立格法对子矿体品位估算,有助于提高估值的准确度。

Establishing a three-dimensional model of the ore body and realizing the three-dimensional visualization of the ore body is of great significance for improving the utilization of resources by the mine and scientifically scheduling the production schedule.In order to implement the three-dimensional modeling of a molybdenum ore body in Inner Mongolia,the physical model and block model of the mine were established by using Surpac software and using the geological data of"lead-zinc-silver-molybdenum ore in a mining area in Inner Mongolia".In view of the problems encountered in the evaluation of the ordinary Kriging method by directly using the belt-shaped ore body,a method of dividing the ring-shaped ore body into sub-ore bodies and then evaluating each sub-ore body separately is adopted.The valuation is based on geostatistics,and Surpac is used to simulate the values of the parameters of each variogram.The valuation results show that after the segmentation of the ore-shaped ore body,the ordinary Kriging method is used to estimate the grade of the ore body,which helps to improve the accuracy of the valuation.