基于钻孔数据的三维地质建模相关算法研究

发布时间：2018-05-20 22:07

本文选题：三维地质建模 + 钻孔数据　；参考：《吉林大学》2017年硕士论文

【摘要】：随着计算机及信息化技术的发展,数字化矿山建设也逐渐成为矿山企业发展中的热门话题,在矿山企业的管理、生产经营、环境、资源、安全中,计算机、信息化技术为其提供了准确、合理、高效的解决办法。因此,数字化矿山建设是矿山企业发展的重要科技途径,并以矿山系统为原型,结合矿山科学技术、计算科学、人工智能和信息科学相关专业知识构建的系统工程。在我国矿山开采的整个过程中,自动化、数字化和信息化的应用还不广泛,水平还比较落后,所以,数字化矿山建设程度将提高矿山企业在行业中的竞争力。三维地质建模是数字化矿山是一个重要研究方向,更是地下矿地层分布、矿床形态、品位体现前期掌握和预测的一个重要手段。三维地质建模是在通过勘探钻孔获得地质数据的基础上,通过对钻孔数据的处理,运用计算机技术,把复杂的地质数据通过三维图像的形式表现出来,可让企业生产工作者直观的观察地质构造及矿体属性,帮助企业在生产过程中按照矿体各属性合理安排生产调度及资源分配。本文主要通过对钻孔数据的分析,对三维地质建模中面建模和体建模两大方向进行了研究,使用差值算法及不规则三角网(TIN)方法对地层曲面进行构造,在对普通八叉树算法充分研究的基础上提出一种符合体建模的改进八叉树算法,并通过改进八叉树算法实现了体建模中的品位建模,从而改变现有只给出平均品位的现状。本文最后经过对红山铁矿钻孔数据的分析研究,应用本文所研究的内容,构造了红山铁矿矿体三维模型,并通过本文提出的改进八叉树算法,得出了矿体品位的精确分布。
[Abstract]:With the development of computer and information technology, the construction of digital mine has gradually become a hot topic in the development of mine enterprises. Information technology provides an accurate, reasonable and efficient solution. Therefore, the construction of digital mine is an important scientific and technological approach for the development of mining enterprises. The system engineering is based on mine system, combined with mine science and technology, computing science, artificial intelligence and information science. In the whole process of mining in our country, the application of automation, digitization and information is not extensive, and the level is still relatively backward. Therefore, the degree of construction of digital mines will improve the competitiveness of mining enterprises in the industry. Three-dimensional geological modeling is an important research direction in digital mines, and it is also an important means to grasp and predict the distribution of underground ore strata, the shape and grade of ore deposits in the early stage. Three-dimensional geological modeling is based on the geological data obtained by exploration boreholes, through the processing of borehole data, the use of computer technology, the complex geological data through the form of three-dimensional images. It can help enterprises to arrange production scheduling and resource allocation according to the attributes of ore bodies in the process of production by visually observing geological structure and orebody attributes. Based on the analysis of borehole data, this paper studies the surface modeling and volume modeling in 3D geological modeling. The difference algorithm and irregular triangulation network (TINM) method are used to construct the stratigraphic surface. Based on the full study of the ordinary octree algorithm, an improved octree algorithm based on volume modeling is proposed, and the grade modeling in volume modeling is realized by the improved octree algorithm, which changes the present situation that only average grade is given. Finally, through the analysis and study of the borehole data of Hongshan Iron Mine, a three-dimensional model of Hongshan iron ore body is constructed by using the contents of this paper, and the accurate distribution of ore body grade is obtained through the improved octree algorithm proposed in this paper.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P628;TP391.41

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