Optimization and Application of Geometric Constraint Model for Boundary Optimization in Open Mine
Received date: 2017-08-14
Revised date: 2018-01-25
Online published: 2019-01-24
The rationality and complexity of geometric constraint model directly affect the efficiency of model building, and then affect the speed of boundary optimization.To ensure the accuracy and improve the operation speed is the key point of the optimization of geometric constraint model.On the basis of summarizing the common fitting methods, a method of slope contour interpolation and an algorithm for quickly constructing mining cone by simplifying the geometric constraint relation were proposed.Based on the angle inverse interpolation fitting model, the discriminant method was proposed to improve the rationality and efficiency of the mining cone construction of ring search block for constructing the mining cone quickly under the condition of slope angle changing with azimuth and elevation.It is mentioned that the method of redundancy of mining cone removal that simplified the optimization process and improved the operation speed of mining cone construction. On the basis of constructing the value model, a set of nested pits was produced in batches, and the ultimate pit of the mine was selected when applied to an open-pit mine.
Ju ZHANG , Liguan WANG , Huaqiang SONG , Zhuli REN , Lin BI . Optimization and Application of Geometric Constraint Model for Boundary Optimization in Open Mine[J]. Gold Science and Technology, 2018 , 26(6) : 795 -802 . DOI: 10.11872/j.issn.1005-2518.2018.06.795
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