Construction Settings¶
Use this dialog to determine which tables should be active and to set parameters that control how construction is performed.
Where can I find the dialog?¶
In the toolbox, select SFI Properties..., go to the Road Body tab, and click the Settings... button.
Using the Dialog¶
The dialog does not have a preview window, but in the cross-section view, you can see the result directly in the profile while editing.
When importing VIPS data, the dialog is populated with the tables imported from the VIPS project. These tables are built when you later build surfaces for the profiles.
You can check or uncheck the tables you want to build surfaces for as you make changes to the road model.
Note
There may be several options under each main table.
Warning
Adjustment to existing road is always greyed out in the dialog, as this table is not used in Gemini Terrain. See the warning in the import log for VIPS import.
Side Areas¶
Adjust Soil Cut to Rock¶
Soil cut follows rock in cases where the rock is steeper. In some cases, this can result in many surfaces.
Soil cut adjusted up to rock
If you turn off this option, you allow the soil cut to go below the rock, resulting in fewer surfaces.
Extend Surface to Outer Edge¶
With this option, you can choose whether the surface should be extended to the outermost edge (top of the excavation slope) or not.
Without Extension¶
Surface without extension
With Extension¶
Surface with extension
Pavement Details¶
Check All Surfaces¶
The standard method when the program selects the pavement type (Soil Cut and Fill or Rock Cut) for a profile is that all points in the road surface are checked against the physical rock layer.
If the points are below the rock layer, the program selects rock cut. Otherwise, soil cut and fill is selected.
With the Check All Surfaces option active, the program checks each surface individually. The start and end points for each surface are checked, and the pavement type for the surface is selected according to the same rule as above.
This means the program can build varying pavement in half cuts. The program selects pavement for soil in fill and pavement for rock in cut, as shown in the figure below.
Varying pavement in half cut
End Subgrade at Bottom of Rock Slope¶
This option is the default setting and will stop the subgrade at the bottom of the rock slope, as shown in the figure below.
Subgrade ended at bottom of rock slope
If unchecked, the program will build the subgrade all the way out into the cut.
Subgrade extended into cut
Extend to Surface Layer¶
In some cases (for example, for 3-surfaces), you can decide whether the layers in the pavement should be extended to the surface layer or not.
Without Extension¶
Pavement without extension
With Extension¶
Pavement with extension
Special Grading¶
Check Minimum Pavement Thickness¶
Checking this field runs a check of the minimum pavement thickness when building surfaces for the profiles, so you avoid the different layers in the pavement overlapping each other.
Example Without Checking¶
Without minimum pavement thickness check
Example With Checking¶
With minimum pavement thickness check
Deep Blasting¶
Clip Surfaces Against Rock¶
Example Without Checking¶
Deep blasting without clipping against rock
Example With Checking¶
Deep blasting with clipping against rock