3D Geological Modeling And Resource Estimation Of Laotianzhuang Manganese Deposit In Chongqing

As the mining efforts continue to strengthen,the problem of insufficient mine resources has become increasingly prominent.In order to realize the sustainable development of mine resources,“three-dimensional digital mine” came into being,which made up for the limitations of traditional two-dimensional mapping.The image intuitively reflected the spatial shape of the ore body,which not only improved mining efficiency but also reduced manpower and Waste of material resources.The Laotianzhuang Manganese Mine in Xiushan County of Chongqing is one of the important manganese deposits in China.In recent years,geologists have carried out many mineral geological work on the manganese ore,which has accumulated rich geological data and data for the mine,but the description of the mine is only In the form of two-dimensional,it is unable to meet the needs of comprehensive analysis of mineral deposits.In order to improve the existing data expression methods in the mining area,this study reling on “1:550,000 Dejiang County(H49E023001)and Yingwuxi(H49E024001)geological survey project has carried out the 3D geological modeling and resource estimation of the Laotianzhuang mining area with the software Surpac as the platform,and achieved the following results.1)Through the analysis of the geological database structure,the collected old Tianzhuang geological data will be sorted according to the required structure,the method and process of constructing the geological database will be studied,the geological database of Laotianzhuang mining area will be constructed,and the three-dimensional display of drilling information will be realized.2)A three-dimensional solid model is established for the surface,stratum and ore-bearing strata of the Laotianzhuang mining area to realize the three-dimensional visualization of the mining area,and the image visually reflects the shape of the ore-bearing stratum and its spatial location.Through the composite display of surface,stratum,borehole and ore-bearing layer,the mutual contact relationship is displayed to provide a strong basis and basis for the subsequent mine development.3)Based on the constructed solid model of three-dimensional ore-bearing layer,the establishment of the Laotianzhuang ore-bearing block model is completed,and the original sample is combined and statistically analyzed.The frequency curve of the obtained grade is analyzed,and the data grade characteristics and ore body production of the combined sample are fully considered.Shape,set reasonable ellipsoid parameters.4)The resource estimation of the Laotianzhuang manganese deposit is carried out by using the traditional geological block method and the distance power inverse ratio method.The comparison shows that the resource quantity estimated by the power-power inverse ratio method is true and reliable,and is easier to operate than the traditional method,and the calculation result is more accurate.The establishment of the 3D geological model of the Laotianzhuang mining area in Chongqing and the estimation of the mineral resources have made up for the gap in the 3D geological modeling of the mining area,and verified the superiority of the power-inverse ratio method in the estimation of the ore resource.The rational development of the bed and the promotion of local economic development are of great significance.