基于加权线性规划法的变异函数球状模型自动拟合研究

Automatic Simulation of Spherical Mode of Varigram Based Weighted Linear Programming Method

对加权线性规划拟合法的权进行了改善,提出兼顾滞后距和数据对数目对权的影响的计算方法。并以山东某金矿等多个金属矿山为例进行了可行性验证,实验得出结论为本文提出的权计算方法适应性更强(既能适用于数据对数目随滞后距的增大而减小的实验变异函数拟合,也能适用于数据对数目与滞后距变化不一致的实验变异函数拟合),拟合所得理论变异函数能使储量估算的精确性得到提高。

The weight of the weighted linear programming method was innovated. The calculation method considering to both lag distance and the effect of the numbers of data pairs to weight was proposed. The data from a gold mine as well as some other metal mines in Shandong province were employed to contrast with the calculated results, which verifies the innovated weight calculation method can be applied on a wider scale, not only can be applied to fit the experimental variogram that the number of data decreases with the growth of lags, but also can be applied to fit the experimental variogram that all these variations of the number of data are consistent with variations of the lag. The weight calculation method innovated in the paper can improve the accuracy of reserves estimation results.