Contour Blocks and Contour Excavation
The Contour Blocks feature is a heatmap that shows the areas of the excavation which have blocks of the highest/lowest computed values. The Contour Excavation feature is similar, but only the excavation faces are coloured to help interpret results from the point of view of the excavation for underground settings.
The availability of Contour Data depends on the analysis mode. In a Deterministic Analysis, the computed values for each block are unique, whereas for a Probabilistic Analysis, computed values for each block may vary between different sample runs. Therefore, in a Probabilistic Analysis only critical values are reported.
In a Deterministic Analysis, the following data is available:
- Factor of Safety
- Weight
- Volume
- Driving Force
- Resisting Force
- Required Support Pressure
- Failure Depth
- Excavation Face Area
- Failure Iteration
In a Probabilistic Analysis, the following data is available:
- Min. Factor of Safety - minimum factor of safety for all sample runs of a given block
- Max. Weight - maximum block weight for all sample runs of a given block
- Max. Require Support Pressure - maximum required support pressure for all sample runs of a given block
- Max. Failed Depth - maximum failed depth for all sample runs of a given block
- Probability of Failure - sum of all failed samples (FS < Design FS) / total samples for the given block
The blocks contoured can be for All Valid Blocks or for a subset of blocks which only encompass Removable Blocks or Failed Blocks. See the Results Set topic for more information. Note that when looking at Contour Excavation, blocks corresponding to an excavation face are visible if they are selected in the Block Information table or if the excavation face is hovered over.