Use Combination of Proportional Shapes

Note: This topic relates to the generation of sub-stope shapes during stope optimization with MSO.

The Combination of Proportional Shapes advanced substoping method is ideal for advanced sequencing or progressive mining patterns. For example, to simulate front-to-back firing or retreat mining.

In short, this method combines proportional scaling and sequence logic to split stopes by defined patterns (front to back or alternating).

Activity steps

Define your MSO scenario, block model, economics, orientation and shapes.
Display the Advanced screen.
Check Stope Layout >> Create Full Stope Shapes and Create Sub Stope Shapes.
Expand Sub Stope Method and choose Combination of Proportional Shapes.
Choose the Proportional Shape Method. This determines how a stope shape is divided:
- Forward Sequence – Divides from front to back.
- Backward Sequence – Divides from back to front.
- Alternating Sequence – Switches direction alternately for each stope.
Select a Proportional Division Type. This is the direction taken when dividing stopes:
- Horizontal – Splits left to right.
- Vertical – Splits top to bottom.
Select the number of Proportional Divisions (segments) to make.
Save your settings and continue defining Advanced stoping settings.

Note: Substoping methods are mutually exclusive. You can't use a combination of methods for the optimization run, but you may want to consider cloning your scenario, then changing the method to see the impact on output shapes.