Research On 3D Mine Coal Seam Modeling And Resource Reserve Estimation Method With Wangcun Coal Mine In Chaohua Town,Henan Province As An Example

Coal mine,as an important energy mineral,plays a very important role in the construction of the national economy.In view of the insufficient reserves of coal mines available for the construction of wells in our country,and the exploration methods and degrees of well fields are far lower than those of developed countries,it is urgent to strengthen the research on resource utilization of comprehensive exploration and development technologies.With the development of computer information technology at home and abroad,especially the development of geographic information technology and three-dimensional graphics processing technology,the application of three-dimensional geological modeling technology and three-dimensional visualization technology to solid mineral exploration and development research is currently in the exploration of solid mineral resources.Important research directions.This article takes Wangcun Coal Mine of Chaohua Town,Xinmi City,Henan Province as the research object,and uses 3D Mine mining software as the platform to complete the Access database by acquiring the three-dimensional geological modeling data source of the target mine,analyzing and processing the geological data Construction and data entry;at the same time,based on the research of the 3D geological body modeling method,the 3D modeling data model and modeling method were tested and verified in the 3D Mine mining software to realize the mine under the 3D Mine mining software The solid three-dimensional model of the four parts of the surface,stratum,roadway,and ore body is constructed,which intuitively displays the three-dimensional visualization results of the mine model.The three-dimensional construction and spatial mathematical interpolation methods of currently commonly used terrain model,stratum model,roadway model and ore body model are analyzed respectively,and according to the characteristics of Wangcun coal mine ore body-layered ore body and structural complexity Simple,stable occurrence,obvious boundary of surrounding rock,sedimentary contact between ore body and surrounding rock,and finally determined that the mine adopts surface modeling method for surface modeling,multi-layer DEM surface modeling method to generate stratum model,and tunnel centerline method to generate The tunnel model is the most reasonable;the orebody modeling process uses the full coal seam method and grid estimation method in the two-layer DEM modeling method to model the orebody surface,and uses the ordinary Kriging method of spatial mathematical interpolation method and The distance power inverse ratio method is used for modeling the ore body separately.Compared with other methods,the combination of grid estimation modeling and ordinary Kriging interpolation is used to establish an ore body entity model,which is distorted by the comparison of other methods.The rate error is the smallest,the average displacement error of the floor contour is 2.75 m,the resource reserve is more consistent with the geological report,and the resource reserve error within the scope of mining rights is only 0.83%.This method can quickly and accurately grasp the ore body information and provide a reliable basis for the next step of exploration and development decisions when the exploration degree in the coal mine area is low,the drilling project is sparse,or the exploration results data(especially the exploration line profile)are insufficient.