The partial percentage creates additional ‘centroids’ by sub dividing the bigger block model block into smaller blocks using varying Precision (values 1 to 5 depending on level of accuracy needed and computer specs) How do we resolve these challenges? The reverse is true when the centroid is sitting outside the mining block, there will be underestimation of material available material (Figure 2) This leads to an overestimation of what is available for mining. This is because the centroid of the block model block is inside the mining block. In the above figure, the evaluation of the mining block as a location, with no partial percentages specified, will yield a volume of 25m x 50m x 10m = 12,500 cubic meters (assuming a 10m bench height). 1: Block model block versus a mining block The below figure shows an open pit block of 25m by 50m with a mining polygon drawn in red. igneous pipe deposits such as diamonds and copper) where the block sizes in the block model are fairly big, i.e. The use of partial percentage option is significant and necessary when working with massive deposits (e.g.
#BLOCK MODEL REPORT BY BENCH LEVEL SURPAC SOFTWARE#
GEOVIA MineSched, as a planning software of choice, provides the user with an option to increase the level of accuracy in the volumes and tonnages through the partial percentages option when reporting quantities in either solids or polygons. It is important for mine planners to report numbers that are as accurate as possible when generating mining schedules.
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