Bulletin of Surveying and Mapping ›› 2023, Vol. 0 ›› Issue (5): 140-147.doi: 10.13474/j.cnki.11-2246.2023.0151

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Calculation method and its application of open-pit mineral reserves of a hybrid interpolation algorithm

WANG Lu1, LU Xiaoping1, LI Guoli2, LI Xiaolei2, KANG Aifeng2   

  1. 1. Key Laboratory of Spatio-temporal Information and Ecological Restoration of Mines, Ministry of Natural Resources of the People's Republic of China, Henan Polytechnic University, Jiaozuo 454003, China;
    2. Hebi Hengyuan Mining Group Co., Ltd., Hebi 458030, China
  • Received:2022-10-14 Published:2023-05-31

Abstract: A hybrid interpolation algorithm is proposed for 3D modeling of the geological body to meet the demand of open pit mine reserve estimation. Firstly, the Erdaozhuang open pit mine in Hebi is selected as the study area for practical application, and the obtained borehole data are stratified and processed. Based on the spatial autocorrelation analysis of the processing results, a hybrid algorithm of kriging interpolation, regular spline interpolation, tension spline interpolation and inverse distance weighted interpolation is used for encryption, and the optimal interpolation method for different geological layers is determined after cross-validation. Then, we use Revit and Dynamo for visual programming and adopt the modeling idea of "point-surface-body" to model the mine geological body in 3D. Finally, a mineral reserve estimation system is established based on the secondary development of C/S in SuperMap platform. The results show that the method can meet the requirements of mine reserve calculation and provide reliable data support for mine planning, production control, scientific management and intelligent mine construction.

Key words: open-pit mines, hybrid interpolation, BIM, 3D modeling of geological body, estimation of reserves

CLC Number: