Establishment And Application Of Three - Dimensional Mathematical Economic Model Of The Middle - To - Gold Deposit In Wangmo County, Guizhou Province

As a finite,the earth whose resources on which people rely are also limited.With the development of society and technology, the requirement of mineral resources also highly rises.The fact that the number of mineral resources has become one of the most important factors to influence the social prosperity and decide whether this country is rich as well as powerful made the geology whose purpose is to find mineral recourses become more and more important.So combining traditional geology with modern information technology and trying our best to solve the problems in our research is the inevitable trend of the development of geology.With the development of computer science,the extention and application of three-dimensional geological software has attracted more and more attention.Though the internal technology of three-dimensional visualization started relevantly late,still it has a fast development and aslo been considerable used in the build of digital mine information system,dilineating mine directly and accurately,application of geological statistics,reserves calculation,production and designment of mine and so on.’Digital mine’which has solved many puzzles with which traditonal geology is faced also raises the industry level and working efficiency of mine.This article basing on the combination of internal and external three-dimensional visualization uses’Micromine’to build the digital gold mine model which is regarded as the target to investigate the key technology and related applictions to turn this information system into reality by analyzing the geological property of the gold mine in LiLai village,WangMo county,GuiZhou province.The conclusion gained in this investigation has been particularized below:(1) Using’Micromine’to build a database of LiLai gold mine and achieve the digitization and visualization of effective mineral information as well as the spatialization and indication of drill hole.(2)Buiding Digital Terrain Model,Digital Stratal Model,Structure Model and Mine Model successively on the basis of mine geology database.The data are addable,deletable,changeable and searchable,which has pratical significance in dynamic management of mineral production.(3)Using variogram as the main tool to analyze and count the simple and combinational sample of Au,encluding mean value,varience,standard deviation,frequency distribution and grade distribution which are used to draw grade distribution histogram.At the same time,using variogram to analyze the retionality of the density of exploration grid and suggest the reasonable density of exploration grid to be 35m×38m.(4)Buiding the LiLai gold mine grade model,realizing quike reserves calculation and submitting reserves report and report forms,drawing grade-tonnage curve.Providing scientific and relyable ideology of the designment of reconnaissance and optimizational exploitation.(5)Enhancing mineral productive effectiveness by ecnomic assessment of mine deposit to reduce the waste of resources and delineate mine by balanced grade.