新疆梅岭铜多金属矿床三维模型应用研究

发布时间：2018-02-01 19:36

本文关键词： 三维矿业软件三维地质模型资源量估算勘探网度露天境界优化新疆梅岭　出处：《昆明理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着矿山三维可视化技术的发展及三维地质软件的大力普及,我国对三维地质软件的推广和应用日益重视,三维地质软件可广泛应用于矿山地质数据库的建立及管理、矿体实体模型和地质构造的三维显示、地质统计学储量估算、矿山生产设计、露天采矿境界优化及生产进度安排等方面,三维地质软件的应用大大提高了采矿工业的水平和工作效率。本文在总结分析国内外地学三维可视化建模研究现状及三维矿业软件发展应用现状的基础上,根据Micromine三维地质软件的建模流程构建了梅岭铜锌金矿体模型,采用距离反比加权法估算梅岭铜锌金矿体储量,建立梅岭铜锌金矿体品位模型。以变异函数方法作为主要分析工具,以铜品位值为区域化变量计算不同方向的矿体变异函数,根据矿体走向和倾向方向的变异函数模型的变程值确定了矿床勘探网度。应用Micromine软件的露天境界优化功能模块对不同铜金属价格市场条件下最终开采境界进行了优化。本论文主要研究成果总结如下：(1)在Micromine平台上构建了梅岭铜多金属矿床模型,包括三维地质数据库的建立、实体模型的创建(矿体模型、主要断层构造模型和地形模型)；通过对钻孔取样分析结果的统计分析,选择距离加权反比法构建了梅岭铜矿体的Cu品位模型；根据估算的铜矿体储量结果,绘制了梅岭矿床铜矿体的品位-吨位曲线图,可指导矿山动态管理。(2)通过对梅岭矿床主要矿体M1、 M2、 M3、 M10、 M12的形态、厚度和品位的变化性分析得出,梅岭主要矿体形态为似层状简单类型,厚度总体为稳定类型,铜品位为不均匀-均匀类型；铜矿体厚度与铜品位为正相关关系。(3)根据梅岭矿床的地质勘探情况,将梅岭矿床分为两个数据域进行勘探网度合理性分析。通过分别计算M63-M19号勘探线区域和M15-M16号勘探线区域内矿体铜品位在不同方向上的实验变异函数,及其对变异函数模型的结构分析,以矿体走向和倾向方向的变异函数曲线模型变程值来确定勘探问距。研究结果表明：M63-M19号勘探线区域,建议勘探网度为73m × 84m; M15-M16号勘探线区域,建议勘探网度为36m×70m。(4)根据Micromine露天境界优化功能模块,研究了不同铜金属市场价格下的开采境界设计方案；所模拟的七种开采境界设计方案可为梅岭矿山开发提供动态管理依据：即根据不同铜金属市场价格条件下合理采用最佳的露天开采设计方案。
[Abstract]:With the development of 3D visualization technology and the popularization of 3D geological software, our country pays more and more attention to the popularization and application of 3D geological software. Three-dimensional geological software can be widely used in the establishment and management of mine geological database, the 3D display of orebody solid model and geological structure, the estimation of geostatistical reserves, and the design of mine production. Open-pit mining boundary optimization and production schedule and other aspects. The application of 3D geological software has greatly improved the level and working efficiency of mining industry. This paper summarizes and analyzes the research status of 3D visualization modeling and the development and application of 3D mining software at home and abroad. According to the modeling flow of Micromine 3D geological software, the model of Meiling copper-zinc gold ore body is constructed, and the reserve of Meiling copper-zinc gold deposit is estimated by distance inverse proportional weighting method. The model of copper zinc ore body grade in Meiling is established. The variation function of ore body in different directions is calculated by using variation function method as main analysis tool and copper grade value as regional variable. According to the variation range of variation function model of orebody strike and tendency direction, the exploration net degree of ore deposit is determined. The best value of copper metal price under different market conditions is obtained by using the open-air boundary optimization function module of Micromine software. The main research results of this paper are summarized as follows:. (. 1) the model of Meiling copper polymetallic deposit is constructed on the platform of Micromine. It includes the establishment of 3D geological database and the establishment of solid model (orebody model, main fault structure model and terrain model). Based on the statistical analysis of the results of borehole sampling, the Cu grade model of Meiling copper body is constructed by choosing the distance weighted inverse ratio method. According to the estimated reserves of the copper deposit, the grade tonnage curve of the ore body of Meiling deposit is drawn, which can guide the dynamic management of the mine. By analyzing the variation of shape, thickness and grade of M10 and M12, it is concluded that the main ore bodies in Meiling are stratiform like simple type, thickness is stable type, copper grade is non-uniform and uniform type. There is a positive correlation between copper ore body thickness and copper grade. The Meiling deposit is divided into two data domains to analyze the rationality of exploration network. The copper grade of ore body in the area of M63-M19 and M15-M16 is calculated in different directions, respectively. Experimental variogram. Based on the structural analysis of the variation function model and the variable-range value of the variable-function curve model in the direction of strike and inclination of the orebody, the distance of exploration is determined. The results show that the area of the exploration line No. 1: M63-M19 is located in the area. It is suggested that the degree of exploration net is 73 m 脳 84 m; In the area of M15-M16 exploration line, it is suggested that the exploration net should be 36m 脳 70m.f.) the function module is optimized according to Micromine open-air boundary. The design scheme of mining boundary under different copper market price is studied. The seven simulated mining boundary design schemes can provide dynamic management basis for the development of Meiling mine, that is to say, according to different copper metal market prices, the best open-pit mining design scheme can be reasonably adopted.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.2

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