Tunnel Doors¶

A special function adjusts the tunnel banquet for openings such as tunnel doors.

The function changes the banquet layers on left/right for center door to support open door more than 90 degrees.

Line A1-A2 is horizontal in the longitudinal direction. Line B1-B2 follows the original tunnel slope. C1-C2 segments are used for transition between special curb height to normal curb height.

7 additional cross sections are created at C1, B1, A1, door center, A2, B2, C2. The arrow indicates increasing profile direction.

Parameter Settings¶

Profile numbers for center door and associated banquet parameters must be entered in a predefined list in Excel.

Use the template mal_Banquet.xls located in the Sys folder (Settings - Gemini Terrain - Personal settings - Installation information - Folders).

Replace "mal" with the name of the SFI file, for example:

Test.sfi
Test_Banquet.xls

Note

Both files must be located in the project folder.

Example Parameter Table¶

Excel parameter table for tunnel doors

Column Explanation¶

Column	Description	Unit
A	Profile number for center door	-
D/E/F/G/H/I	Distances	Meter
J	Curb layer (typically 34/35 or user-defined layers)	-
K	Result curb layer (user-defined numbers for adjusted banquets)	-
L	Visible part of banquet in adjusted area	-
M	Depth of invisible part of banquet in adjusted area	-
N	Banquet layer (typically 36/37 or user-defined layers)	-
O	Result banquet layer (user-defined numbers for adjusted banquets)	-
P	Banquet slope normal to center door	-

Warning

You must ensure that you choose layers that are not used for other tasks.

Heights for the door are calculated automatically, and after construction you get a log file with information about the adjustments.

Example:

Example of log file with information about tunnel door adjustments

Resulting slopes for the banquet in A1 and A2 are decisive in this log. Negative values mean that the banquet has a slope toward the door.

Important

The function is currently not part of the general construction engine, but a process you can run after standard construction of the tunnel.

Procedure for Building Tunnel Doors¶

Procedure

Copy mal_Banquet.xls to project folder and change "mal" to name of SFI file
Enter parameters for all tunnel doors in the Excel file
Select desired SFI model in the drawing
Choose the function Parameters for tunnel door... (see below) - Parameters in Excel file are imported to dialog
Select desired rows you want to build and click Build
The result layers for the banquet adjustments are built and log with key information is displayed

Note

All profiles are tagged. This means you can delete old profiles if you change the center point for the door. Deletion is only possible if you build all openings anew (select all rows in the dialog and build).

Copying Points to Application Layer¶

After construction, you can copy points A1, B1, C1, A2, B2, C2 and lines A1-B1, A2-B2 to application layer.

Procedure

Create application layer with template mal_Banquet.aly
Build tunnel doors
Select application layer and choose Paste objects...

Copied tunnel door geometry to application layer

Parameters for Tunnel Door...¶

The function is not on the standard menus and must be added manually:

Function Activation

Choose Tools - Advanced tools - System customization settings...
Check Allow user customization of menu/toolbar/button bar
Select the gear wheel, for example on the toolbar
Choose App 4, Comp 13 and command 239
Click Add

Activation of the function Parameters for tunnel door...