A Study On Reengineering Of Mining Design Process And Optimization Of Production Planning In Beiminghe Iron Mine With3D Visualization Technology

Abstract:Mining production efficiency is depending on the modernization degree. As the mine digitalization is the basis for the modern mining, visual mining design and production planning in the three-dimensional space has become the inevitable trend of development.It has been nearly twenty years in the application of3D mining software in China’s mining industry, but the basic is focusing on engineering modeling, ore body modeling and reserve estimation, the design and production planning optimization in3D environment is still in its infancy, and there has none successful application case.Based on this situation, we take Beiminghe Iron Mine as example, we build the3D model and resource model, then we define the design process of non pillar sublevel caving method visually and parametricly, at last, we study the application of production planning simulation technology. The main research contents include the following aspects:(1) We present the key technology relates to visualization mining design and production planning, such as Delaunay triangulation algorithm, cutting algorithm geological body, geological body projection algorithm and the production task scheduling, production path finding algorithm etc..(2) We build the3D drilling database of Beiminghe Iron Mine using DIMINE, and we build DTM model and roadway engineering. With modeling technology based on non standard space grid, we build a3D visualization ore body model, rock diorite model, limestone model, fault model and skarn. Finally, we using geostatistics method to build the grade block model of this deposit.(3) We reengineer mining design process of non pillar sublevel caving method in3D environment. In preparatory work designing, realization of the centre line fast rendering, naming and the adjustment of the slope, intelligent coordinate dimensioning and accurate calculation, check and calculate the standard mapping, is realized. Then we design the method of level-170and-155to guide the production and construction. In design for extraction, we realize the automatic hole design and charge design, accurate calculation of indicators, drawing design and standardization of output, then we complete the multi stope design in Beiminghe Iron Mine.(5) We realize the efficient planning in3D environment using simulation mining technology and database technology. On the basis of the3D entity model and the production path, we take the actual mining model and roadway engineering model for the arrangement objects. Taking the main production index input and current production status as the constraint conditions, We can simulate the mining technology interactively in3D space, then we can calculate, analysis, adjustment. Eventually we complete the three year rolling plan in2013, and apply it in production organization and management.