Research On Micromine-based 3D Orebody Modeling And Estimated Reserves

In this paper,on the basis of studying the domestic and foreign papers,the auther introduce the principle of 3D orebody modeling and ore reserves estimation,summarizes the status and advance of the study of 3D orebody modeling and ore reserves estimation,and to one ore block of Tuolugou cobalt (gold) mine for example, based on Micromine software system, investigate of theoretical foundation and technical processes of 3D orebody modeling and ore reserves estimates. Using multiple methods such as combining theory and practice, geological surveys and modeling techniques, qualitative analysis and quantitative calculation, traditional engineering geological theory with modern technology, several conditiongs are obtained as follows:(1)With the Micromine software system as a platform,built Tuolugou cobalt(gold) mine drilling database for the basis of subsequent 3D orebody modeling and ore reserve estimates.(2) In reference to the basis of domestic and foreign literature on the 3D geological modeling and reserves estimation, the basic principles as guidance, focus of a complex ore body model building process with Man-machine interactive processing.from a whole on a more comprehensive systematically summed up the complexity of establishing a realistic model of the technical basis of geology and reserves calculation method, and described the future trends.(3) Based on 3D visualization techniques and geological theories of geological deposits created 3D model is the kernel of "digital mine" ,and search of Sustainable Developmen of the mine production and management.in this paper establishes Tuolugou cobalt (gold) ore deposits of the ore body segment model, formulated the principles delineated ore profile, ore body frame model construction methods and solutions for special circumstances and applied research have yielded results, the prospects of its application is becoming increasingly broad with the technology as well as improving the quality of employees.(4) in the reserves estimates of cobalt ore bodies with the actual situation, namely the cubic inverse distance method, and closed polyhedral estimation method for estimating the two methods were compared, analysis, and further to take the reliability verification and error assessment of the cubic inverse distance method.