Application And Research On Three-dimensional Geological Modeling Of Mine Based On DATAMINE

With the development of the digital mine, the three-dimensional geological modeling technology has been applied in mine. The combination of 3d visualization technology and optimization theory of operations research provide a convenient to mining plan, and make the mine resource utilization be higher. Mining enterprise's development cannot leave the ore mining, they need to make mining plan reasonably. Selecting effective mining boundary can provide mining enterprises with higher economic benefit.In this paper, it summaries the current development of the three-dimensional geological modeling research and mines mining situation at home and abroad. Besides, the paper compares the advantages of the software project related mines exploitation both here and abroad, choosing software that is suitable for the study area. The thesis discusses the process of 3D geological modeling method and analyses the modeling methods that are based on the surface model, solid model and hybrid model. The thesis selects the three kinds of modeling methods from commonly used models, compared their advantages and disadvantages and described their principle. Generalizes their methods and chooses ways suitable for drilling and profile data.In the establishment of three-dimensional geological model, the paper can have the mine's spatial analysis. This paper expounds the common methods of mine boundary design, and analyses of the traditional manual method's mine design in theory. It describes the manual method in three economic indicators of average stripping ratio, economic reasonable stripping ratio and boundary stripping ratio, at the same time, selects the appropriate parameters for mine boundary design and analyzes the shortcomings of traditional manual method. The thesis focuses on the analysis of two algorithms in principle and definition about the L-G algorithm and floating cone algorithm. By evaluate these principles, we can know that the floating cone method cannot find the best condition in some special cases. We select the L-G algorithm and the floating cone algorithm to carry out the boundary design of the research area, and explain the optimization theory and flow paths of the boundary design.With Pan jia tian iron mine as an example, the paper's data comes from the Pan jia tian iron mine. Through dealing with the drilling data and profile data, the mine drilling model, block model and stope model are set up by using the DATAMINE software. Under the condition of different ore sale price, using L-G algorithm and the floating cone algorithm devise the mine's mining design, and have carried on the comparative analysis of the design result. We can get to know the stripping ratio of L-G algorithm is smaller than it in the floating cone algorithm. By using the L-G algorithm in mines, the mine's enterprises get high economic value. Finally, the paper provides four schemes in mine's design boundary and select the best project based on the various parameters. The utilization of the L-G algorithm improves the mine resource utilization, reduces the mining cost and provides guidance for mine mining plan.