Grade Control with 3D Blast Movement Modeling

GeoMine OreController (OreController), is an Open-Pit grade controller designed to create and sequence fine-grained dig-units based on 3D blast movement modeling in order to minimize dilution and ore losses for bench mining.

Traditional grade control practice usually entails determining the dig limits for bench cuts of an open-pit bench against an in-situ block model. This fails to model the reality: after a blast is fired, blocks on the bench will break, throw and mix with their neighboring blocks, invalidating the predefined dig limits for all, but trivial, cases.  The dilution and ore losses have also been hard to quantify and are usually a guesstimate by experience or determined after the fact.

A better approach emerging in recent years has been to take into account the impact of 3D movements of the rock being blasted. OreController is designed specifically for this purpose. With OreController, the user only needs to specify an in-situ block model and a pair of topographical bench surfaces before and after blast. A post-blast model will be generated automatically and it can be used to create fine-grained shovel-truck dig units which can then be scheduled by iScheduler-OP against the blast model.

OreController Key Benefits

OreController Feature List

Generates 3D blast models from an in-situ block model and a pair of topographical bench surfaces before and after blast.

Automatically generates and sequences thousands of fine-grained shovel-truck dig units from the blast model. These dig units closely follows the ore and waste delineation of the generated 3D blast model.

Option to interactively edit sequences of shovel-truck dig units;

Output the statistics of the modeled dilution and ore losses.

Creates dig unit activities against the blast model for scheduling with iScheduler-OP (requires an iScheduler-OP license)

System Requirements: