金属矿床可视化建模及储量计算

Visible Modeling and Reserves Estimation for Metal Deposit

利用大型矿业软件Surpac创建了某矿深部矿床的地质数据库,建立了该矿深部矿体的三维实体模型和品位块体模型,采用普通克里格法对矿床有用元素进行了估值,获得了矿体Pb、Zn、S平均品位的空间分布及边际品位与Pb、Zn、S平均品位的关系。按不同边际品位和不同中段对矿床地质储量进行了统计计算,并将矿山生产实际获得的储量与计算获得的储量结果进行了对比分析。结果表明,所建立的矿床三维模型、品位推估及储量计算结果可靠,可用于辅助矿山开展资源评估、采矿设计以及开采计划编制等工作。

With the software of Surpac, a geologic database was established for a deep deposit in some mine, a 3 D model and block model were also built for its orebody. The useful elements were estimated by using Ordinary Kriging. Spacial distribution of an average grade of Pb, Zn and S, a relationship between marginal grade and an average grade of Pb, Zn and S are obtained. The reserves of geologic deposit were estimated according to different marginal grade and levels respectively, and the reserves obtained from actual prospecting were compared with that from estimation. Results show the 3-dimensional model established for deposit and the estimation of grade and reserves measurement are credible and will be helpful to carry the study on reserves estimation, mining design, mining plan making and so on.