Rules for Multi Scenario Modelling

When you are creating and editing models using the Multi Scenario modelling option, the following rules apply with respect to inheritance of common properties, and propagation of editing operations. There are THREE levels:

1. All Groups/Scenarios
2. Individual Group
3. Master Scenario + Additional Scenarios

MASTER SCENARIO

All changes made to a Master Scenario are automatically propagated to all other scenarios in the same group. Therefore you should only edit a Master Scenario when you wish to propagate the changes to all other scenarios in the group.

SHARED BY ALL GROUPS/SCENARIOS

The following properties are shared by ALL groups and scenarios.

• Soil Profile Boundaries
• Borehole Settings
• Material/Hydraulic Properties (see exceptions further below)
• Support Properties
• All Units (general, permeability)
• All Functions defined in properties and groundwater (user-defined bcs, discrete functions, etc.)
• Statistics for material and support properties
• User-defined design standards

INDIVIDUAL GROUP

The following properties are shared by all scenarios in a given group.

• External and material boundaries
• Editing of external and material boundaries
• Slope failure direction

ADDITIONAL SCENARIOS

Individual scenarios can be edited independently of each other, with the exception of the shared properties of groups/scenarios listed above, and the Master Scenario.

• If you wish to propagate edits from one scenario to all other scenarios in a group, edit the Master Scenario.
• If you wish to propagate edits from one scenario to selected scenarios in a group, then use the Link Scenarios option. This will propagate all applicable editing options to only the selected scenarios in a group.

These options are NOT synchronized between scenarios in the same group, even when Link Scenarios is turned on, and will have to be applied individually to each scenario.

SCENARIO-SPECIFIC PROPERTIES

The following properties are material properties that can be different from one scenario to the next.

• Statistics for probabilistic/sensitivity analysis
• All water options (e.g. Groundwater method selection in Project Settings > Groundwater, water table assignment, Hu option, etc.)
• For material types Anisotropic Linear and Snowden Modified Anisotropic Linear, if Anisotropy Definition is defined as Surface, a different Anisotropic Surface can be selected in each scenario.
• For material type Generalized Hoek-Brown, if defined by "GSI, mi, D", and "Parameters vary with depth" is checked on, the D Parameter variation details in the Define dialog can be different in each scenario.
• For material type Generalized Anisotropic, in the case that multiple scenarios are exported from Slide3, the 3D details (e.g. dip and dip direction, anisotropic surface 3D details) can be different in each scenario.