Excavation Hazard
The excavation hazard is calculated on minodes that represent underground tunnels as a series of connected nodes. For more information on minodes and to find out how to create or update them, go to this page: Minode Generator
There are a number of marker styles that describe the hazard on minodes. The theory behind these hazard indicators is discussed on this theory page: Hazard Assessment Excavation Theory
The connection between the grid hazard and minode hazard is defined by the Strong Ground Motion Relationship. For more information on the SGM relationship, go to the following theory page: Strong Ground Motion Theory
The hazard parameters can be plotted on minodes or painted onto mine surveys. There is a summary of the total mine-wide hazard in the footer of the 3D view that gives the annualised probability of a strong ground motion (of chosen PPV) at any excavation. You can also select a subset of minodes and calculate the probability of a strong ground motion within that zone. You can also use a magnitude and distance instead of a PPV to define excavation hazard.
Excavation View
The previous video showed the isosurface view that is independent of excavations. The excavation view shows the ground motion hazard on work areas.