基于DATAMINE的矿山三维地质建模及应用研究

发布时间：2018-11-16 08:23

【摘要】：矿山的数字化发展,使得三维地质体建模技术在矿山得到了实际运用,三维可视化技术、运筹学优化理论的结合对矿山开采计划提供了便捷,使得矿山的资源利用率更高,矿山企业发展离不开矿石的开采,合理制定开采计划,圈定有效的开采境界,可以为矿山企业提供更高的经济效益。本文对三维地质体建模国内外研究现状和矿山开采目前的发展情况进行了总结,比较了国内外相关矿山开采计划软件的各自优势,选择适合本文研究区的软件。探讨了三维地质建模方法流程,重点分析了三维地质体建模方法中的基于面模型、体模型、混合模型的建模方法,提取了三种构模方法中常用的模型,比较他们的原理和自身优缺点,并归纳整理出适用于钻孔和剖面数据的建模方法,在建立三维地质体模型后,对矿山进行空间分析,本文阐述了矿山境界设计中的常用方法,分析了矿山设计中的传统手工法的理论,阐述了手工法中的平均剥采比、经济合理剥采比、境界剥采比三种经济指标,为矿山境界设计选取合适的指标参数,并分析了传统手工法存在的不足,重点分析了L-G图论法与浮动圆锥法两种算法的各自定义和境界化原理,可知浮动圆锥法中某些特例情况无法求出最佳境界。选取L-G图论法与浮动圆锥法对研究区进行境界设计,并分析了境界设计优化理论和设计流程。本文以潘家田铁矿为例,在收集的潘家田铁矿数据资料基础上,采用基于剖面和钻孔数据利用DATAMINE软件建立地质数据库,构建矿山的钻孔、块体模型,并在不同经济参数下,分别用L-G图论法和浮动圆锥法对矿山进行开采设计,并对结果进行了比较分析,可知,L-G图论法在境界设计中的剥采比比浮动圆锥法小,用图论法矿山获得经济价值较高。最后,选取L-G图论法为矿山境界设计提供了4种方案,结合境界开采设计各项参数选取最优方案。可知L-G图论法的使用,提高了矿山的资源利用率,降低了开采成本,为矿山的开采计划提供了指导意见。
[Abstract]:With the development of mine digitization, 3D geological modeling technology has been applied in practice in mine. The combination of 3D visualization technology and operational research optimization theory provides convenience for mine mining plan and makes mine resource utilization rate higher. The development of mine enterprises can not be separated from the mining of ore. The rational drawing up of mining plan and the delineation of effective mining boundary can provide higher economic benefits for mining enterprises. This paper summarizes the present research situation of 3D geological body modeling at home and abroad and the present development of mine mining, compares the respective advantages of the related mining planning software at home and abroad, and selects the software suitable for the study area of this paper. The flow of 3D geological modeling method is discussed. The modeling methods based on surface model, volume model and mixed model are analyzed, and the models commonly used in three kinds of modeling methods are extracted. By comparing their principles and their own advantages and disadvantages, and summarizing the modeling methods suitable for borehole and profile data, after the 3D geological body model is established, the spatial analysis of the mine is carried out. The common methods of mine boundary design are expounded in this paper. This paper analyses the theory of traditional manual method in mine design, expounds three economic indexes of average stripping ratio, economical reasonable stripping ratio and boundary stripping ratio in manual method, and selects appropriate index parameters for mine boundary design. The shortcomings of traditional manual method are analyzed, and the definition and boundary principle of L-G graph theory method and floating cone method are analyzed. It is known that some special cases of floating cone method can not find the best boundary. The L-G graph theory method and floating cone method are selected to design the boundary of the study area, and the optimization theory and design flow of the boundary design are analyzed. Taking Panjiatian Iron Mine as an example, based on the collected data of Panjiatian Iron Mine, the geological database is established by using DATAMINE software based on section and borehole data, and the borehole and block model of the mine is constructed under different economic parameters. The mining design of mine is carried out by using L-G graph theory method and floating cone method, and the results are compared and analyzed. It can be seen that the stripping ratio of L-G graph theory method in boundary design is smaller than that of floating cone method. The method of graph theory is of high economic value. Finally, the L-G graph theory method is selected to provide four schemes for the design of mine boundary, and the optimal scheme is selected in combination with the parameters of the boundary mining design. It can be seen that the application of L-G graph theory can improve the utilization ratio of mine resources, reduce the mining cost, and provide guidance for mining plan.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD211

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