一种混合插值算法的露天矿产储量估算方法及其应用

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

为满足露天矿山储量估算需求,本文提出一种混合插值算法的地质体三维建模方法。首先,选择鹤壁市二道庄露天矿作为研究区,对获取的钻孔数据进行分层处理,在对处理结果进行空间自相关性分析的基础上,利用克里金插值、规则样条插值、张力样条插值及反距离加权插值混合算法进行加密,经过交叉验证后确定适应于不同地质层的最优插值方法;然后,利用Revit和Dynamo进行可视化编程,采用“点-面-体”的建模思路对矿山地质体进行三维建模;最后,基于C/S在SuperMap平台进行二次开发,建立矿产储量估算系统。结果表明,本文方法可以满足矿山储量计算要求,为矿山开采规划、生产控制、科学管理及智慧矿山建设提供了可靠的数据支持。

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.