In the Preschedule step set the proportion remaining to drill, charge, or mine.
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Select an activity from the Activity list.
Expand the record tree to the blast or dig solid.
Set the proportion (or volume) remaining.
Manual Values will be displayed Bold Orange (as per Legend in the Activity panel).
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Prescheduling does not recognise where material is spatially, just that a % of the block has been mined and the inventory of all parcels is reduced by that %. It is recommended that mining prescheduling with a depletion surface is done in Rapid Reserver which will remove material from the correct location spatially.
Error Messages
Note that each block must have values for Volume, Dry Tonnes and Wet Tonnes (or 0 for all of them), otherwise you will get an error message as below and won’t be able to proceed with your project setup.
“Block/parcel (<Reserves/…….>) must have values for volume, dry tonnes, and wet tonnes, or 0 in each.”
Double click on the error message to display the whole list of affected blocks/parcels.
Review the preschedule data, you may find that some blocks have volume but no tonnes, or vice versa.
Check the blocks affected in Rapid Reserver:
Navigate to Rapid Reserver > Designer tab > select the block from APS Preschedule error message description > check its tonnes and volume in the Reserves tab at the bottom of the screen > most likely you will see the same missing values.
Some blocks can be outside of the Block Model coverage > make sure you are using Block Model Gap Filling function, where default densities (this is essential) and tonnes are assigned (enable “Fill Block Model Gaps' in the Settings step).
If Block Model Gap Filling is used correctly, but the error message in APS Preschedule persists, check your Reserves mappings in the Block Model step > Reservable Model Generator.
Change the volume and tonnes expressions to exclude blocks with Zero density, ie:
volume = N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)") : 0, or N("size (X)")*N("size(Y)")*N("size(Z)");
tonnes = N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)")*N("density") : 0, or N("density") > 0 ? N("size (X)")*N("size(Y)")*N("size(Z)")*N("density") : N("size (X)")*N("size(Y)")*N("size(Z)")*2.5 (density).
Regenerate your Reserves Model and review the changes.
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