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Lo Embankments Of The Old Mining Area On The 10th Mine Group Deposit Model

Posted on:2006-04-13Degree:MasterType:Thesis
Country:ChinaCandidate:M G DengFull Text:PDF
GTID:2190360155465154Subject:Mineral prospecting and exploration
Abstract/Summary:PDF Full Text Request
Under the conditions of the resource shortage, environmental deterioration, economical sustainable development and its globlization, the rational utilization and development of the mineral resources is becoming a prominent problem. Society makes higher claims for the geological science; however, it cannot meet the needs of social development. Strengthening the quantitative assessment of mineral reserves, improving the level in processing geological data, making great progress in quantification, which is also important in asserting survival and development of the human beings. For many years, geology and mining industry experts have been hoping to determine the ore body boundary more accurately and visually.learn about 3D formation of the geologic body underground (including strata, fault, fold structure and so on), interpret and determine the geologic body underground accurately, calculate ore deposits with high speed, grasp the spatial grade distribution law of the ore body, so that it can instruct us in exploring the mineral resources effectively, that is the reform from the traditional mining industry to modern one.The paper analyzes the existing problem in developing the mining informationize, briefly introduces the popular mining software for international, performs detailed comparison and analysis in the function characters and modeling methods of Micromine and Surpac 3D mine software, constructs the flow chart of the 3D solid model separately. The paper generally summarizes the ultimate principle of the geostatistics, some usual math models of theoretical variation function.The most important Kriging reserves assessment, and the development trend of the geostatistics. The paper chooses the Micromine mine software as a platform, establishes 3D digital ore deposit models for the five main orebody in No. 10 of Lutangba, Gaosong mine field of Gejiu mine area: 1 .Checks the raw data and processes the superhigh grade, constructs the geological database of the five main orebody in No 10 of Lutangba. Gaosong mine field of Gejiu Area. Achieves the data computerization and dynamical inquiry; 2. Researches the distribution law of sample, including the total sample count.mean.variance .standard deviation, percentage, frequency distribution and sample grade distribution.draws the grade distribution histogram and frequency probabilitychart.the primary sample and composite sample presents normal distribution after takinglogarithm;3.Constructs the digital topography model of Lutangba in Gaosong Orefield;4.Comparing the substantial section with the autocutting section, interprets the orebody,fault, granite top boundary and determines wireframe, forms 3D visual solid model;5.By the use of ordinary Kriging and logarithm Kriging, cave model, Gaussian model andglobular model, constructs theoretical variation function;6.Calculates the reserves of the main five ore-body in distance inverse ratio and Kriging,compares the results as well;7.Constructs the spatial grade model of the main five orebody, works out the method andprocedure for economical assessment and optimization of block model;S.The 3D digital orebed model, which is constructed for the main five orebed in No 10 ofLutangba,Gaosong mine field in Gejiu, determines orebody for mine enterprises byproviding alternative schemes, chooses the best exploring scheme, provides thescientific foundation for improving social economic efficiency and scientific decision inexploring mineral resources, establishes a synthetic information platform for furtherexploration.
Keywords/Search Tags:geostatistics, 3D digital orebed model, solid model, variation function, grade model
PDF Full Text Request
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