Application Research Of3D Visualization Of Multi-metal Mine Based On Surpac

In this paper, Handagai Linchang Iron-copper Mine was studied. Based on the currentsituation and development trend of3D visualization simulation technology research, Surpacsoftware was used for three-dimensional modeling, Geological database of this mine wascreated. Orebody solid model of Handagai Linchang Iron-copper Mine was constructed withprospecting line profile. Grade of Fe and Cu are estimated. Ore reserves were estimated basedon result of grade. Modeling error was analyzed, the method has been found to reduce the error,Ore reserves have been successfully valuation. This valuation was meeting the needs ofpractical work. Three-dimensional geological model and the valuation result is helpful in mineresource assessment and preparation of mining plan, can improve the quality and managementlevel of resource extraction. The main work and achievements are as follows:(1) Exploration data about Handagai Linchang Iron-copper Mine was collection, collation,analysis. These data include geological borehole data, geological cross-section sample assaydata, measurement data mining. Geological database of Handagai Linchang Iron-copper Minewas built. Drilling was a three-dimensional display. Graphic line string was numbered, theproperty was defined, and coordinates were transformed with Surpac software. Eventually, theore body is consistent with the drilling which was a3D display.(2) Orebody profile and ground contours were imported Surpac software by converting thegraphics using AutoCAD as middle ware. Surface model and orebody model was created. The3D visualization of Handagai Linchang Iron-copper Mine was achieved.(3)The cause of the error was found out: Drilling was not completely vertical in the actualexploration work, At the same time the line profile of exploration drilling which was not parallelwith the direction of the bend could not be reflected on the cross-sectional view, In addition, theprocess of drawing exploration line profile was also likely to produce a part of the error in thepast. (4) The method of avoiding the error further expanded was determined: the sample datafalling in the interior of the orebody which was less than the cut-off grade was removed, theerror could be effectively reduced, avoid valuation grade of the ore was undervalued.(5) By combining sample data, statistics and analysis, and fitting the experimentalvariogram, parameters of variogram were determined, theoretical variogram about some of theore body was created, to provide a basis for the valuation of ore grade.(6) The block model was created. The Powers of the inverse distance method was used toassign the block model, to estimate the grade and calculat the reserves.The results showed:Model was reliable, the results were accurate, had important guiding value mine the resourceassessment and sustainable exploitation strategy formulation.