On Stratum Modeling And Transportation Network Construction Of Open-pit Mine Based On GIS

For human beings,mineral resources buried underground are extremely important natural resources and the basic material foundation for social production development and human life.However,mineral resources are non-renewable within the foreseeable time of human beings.Since human beings realized the value of mineral resources,they have been continuously mining them and the mining speed has been continuously improved.Therefore,mineral resources have become increasingly exhausted and human beings have cherished the mineral resources after recognizing the resource crisis.Improving the utilization rate of mineral resources and reducing production costs are particularly important for mining companies.At present,the progress of computer technology and other disciplines have promoted the overall development of the "digital mine",and the development of all kinds of mines in the direction of full digitalization has become an irreversible trend.The digitization degree of the mine in the developed countries abroad is far higher than it in China.Kunyang Phosphorus Mine is a large open-pit phosphate rock.Since the mining,it has been more than 50 years of development history.Now,relatively backward production technologies and management models have restricted the sustainable development of the mine.Based on the careful study of the development status of digital mine at home and abroad,and according to the actual production of opert-pit phosphate rock in Kunyang,Yunnan Province,this article uses Geographic Information System(GIS)technology to promote the application and development of "digital mine" in this mine.After discussing the principles,advantages and disadvantages of the three-dimensional model of the mine,this article analyzes the numerical distribution and spatial distribution trend of the mine borehole data,and establishes different three-dimensional models of the strata on the basis of borehole data.The results show that the three-dimensional model of the underground layers of Kunyang Phosphorus Mine established by the Pan-Kriging interpolation method has higher accuracy and can meet the actual production needs of the mine.According to the simulation and verification of the stratum model in the developed area,the three-dimensional model of the mine strata in the unmined area is predicted and constructed.High-resolution remote sensing images are used to accurately extract network nodes such as transport roads,stripping points,dump points and road intersections in the Kunyang Phosphoros Mining Area,and a complete Kunyang open-pit phosphate rock transportation network is constructed based on spatial topological relationships.Among them,after considering the horizontal distance and elevation difference,the space distance attribute is assigned to each transportation road.This attribute serves as the basis for Dijkstra algorithm to optimize the original dumping plan for the Kunyang Phosphorus Mine.The soil optimization results based on the Dijkstra algorithm have greater advantages than the original soil planning,which can save a lot of manpower,material resources,time and economic costs for mine production.GIS has strong secondary development capabilities and is widely used.ArcGIS Engine,as an excellent software development package,brings together a large number of advanced GIS theories and methods to meet a variety of practical application needs.This article uses ArcGIS Engine's excellent GIS secondary development capabilities to build a convenient and easy-to-use Kunyang Phosphate Digital Display System,which is suitable for non-GIS professionals.The system can realize the display of the mine flat model and three-dimensional model.