Tunnel Trim

The workflow for trimming secondary tunnel(s) by the main tunnel is as follows:

User imports, creates or references alignments that will be used for main and secondary tunnels. Alignments can be created either by using the provided tools under Civil tab or by using Create Transverse Alignment tool.
User places the main and secondary tunnels. The tunnels can be conventional or mechanized (TBM) tunnels.
For detailed information's about modeling conventional tunnels, refer to this link: Conventional Tunnels Modeling
For detailed information's about modeling mechanized (TBM) tunnels, refer to this link: Mechanized (TBM) Tunnels Modeling
User starts Trim Tunnels command.
User selects the main tunnel. The main tunnel will not be cut by the secondary tunnel.
User selects one or multiple secondary tunnels.
User resets to complete and data point to accept.

Note: Excavation Subspaces and Shotcrete (Permanent Wall/Temporary Wall) elements that have been placed on secondary tunnels will also be cut after trimming tunnels. For the main tunnel, void can be created by placing accessories with perforators or by using the solid modeling tools provided under the Modeling workflow.