Estimation method of solid mineral reserves based on parallel section method
The profile method is often used to estimate the reserves of sediment-source deposits.This method can not accurately determine the base point of the boundary of the ore body,which leads to a large error in the estimation of mineral reserves.The parallel section method is suitable for sediment-source type deposits,in which the distribution of minerals is mainly affected by the change of provenance in space.Therefore,when building the ore body model,planes with different elevations can be projected together to obtain a three-dimensional ore body model.Therefore,a method of estimating solid mineral reserves based on parallel section method is proposed in this paper.According to the ore body grade and mineable thickness,the constraint boundary of the target area is extracted,the base point of the ore body boundary is determined according to the graphical data structure and combined with the current industrial indicators,and then the ore body boundary is delineated.By analyzing the mineral layer variability,the parallel section method is used to calculate the regional variation of the ore belt within the ore body boundary,and the block volume of the ore body is obtained.The angle of stratum movement and the density of ore body are calculated,and then the solid mineral reserves are estimated.Taking the actual mining area as an example,the estimation performance of the proposed method is verified,and the results show that the estima-tion error of the proposed method is small and the estimation results are more reliable.
万方数据
维普
