How to Setup and use a Long Term Stockpile in ATS

The Long Term Stockpiles step allows users to configure the reclaim conditions of long-term stockpiles. This gives users the ability to send material to a dump and then reclaim the same material at a later time one time only. Use cases include modelling large LG stockpiles, rehabilitation, and land bridges. 

 

1. Create Tables in ATS

   In the Create Tables step in the Type column select “LongTermStockpile” option. This table type behaves exactly the same as other table types and can be assigned to phases in the “Map Fields” step. Level names will correspond to your required conventions.
   
   
   
   

2. Map Fields

   In the Map Fields step, set the Destination Table type as "LongTerm" Stockpile for the required destination solid and Map the required naming fields.
   
   
   
   

3. Preschedule

   Phases mapped as long-term stockpile appears as Source and Destination in the Preschedule step. 
   
   
   
   

4. Long Term Stockpiles Scheduling logic

   Destination Logic and Steps Logic

   The source and destination phases can be referenced in the Destination Logic and Steps Logic to handle the movements to and from the Long-Term Stockpile.

   Phases assigned to this table will be added as both a fillable destination and a reclaimable source.
   
   
   
   Note that Long-Term Stockpile is not a standard stockpile node, but a source to be mined at some point in time, it only can be mined with a Mining Agent and not a Stockpile Reclaimer and can only be reclaimed once.
   
   

5. Long Term Stockpiles Triggers

   In the Long Term Stockpiles step each entry in this table consists of a long-term stockpile, reclaim parcel and a trigger condition.

   • Reclaim Parcel - The parcel that is reported out in the transactions that occur from mining the stockpile. This is the parcel that the material dumped on the stockpile becomes, so it should be used in the destination logic rule for reclaiming.

   • Trigger - The condition that must be satisfied to allow reclaiming to commence. This is the same logic that is applied in Dynamic Haulage rules.

     • AnyMined - The trigger is fired when any ONE of the blocks specified finishes mining,

     • AllMined - The trigger is fired when ALL blocks specified have finished mining.

     • Calendar - To control LTSP reclaiming from the Calendar, set a value greater than 0 in the periods when you want to start reclaiming from the "LongTermDst" Category.
       
       
       
       
       
       Note the "Remaining Capacity" and "Actual Capacity" values for the "LongTermDst" will not change in the Calendar as it is reclaimed. To view the amount reclaimed and remaining balance you will need to create a report which displays the values from the "LongTermSrc" as a Source location.

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