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Tunneling

  • 1.  Tunneling

    Posted 06-09-2022 08:47
    Hey, I've created a tunnel in tbc tunnel module. I took sections from the contractors dwg 3D model in CAD and the alignment was from xml so it was no problem adding it in tbc. I'm now finished with my tunnel. Is there any way to control my .txl tunel in tbc to the contractors .dwg 3D model in tbc? I have just make a visual inspections between them, it looks ok. Why I'm nervous is that tbc seems not like the radius so I made the sections without them. 

    Its two questions in this text;

    1. Can you compare .txl and .dwg models in tbc?
    2. Any tips for dealing with radius in tbc tunnel without getting the interpolation messed out.


    Thanks!


  • 2.  RE: Tunneling

    Posted 06-09-2022 15:16
    Hey There! I have answered your questions in bold below. If you can share your data set with the TBC team, we can look further into this.

    1. Can you compare .txl and .dwg models in tbc? There is no way to directly compare the 3D CAD model to the TXL in TBC. You can compare two TXL files using the Tunnel Inspection Map (this would show you clashes) but that would mean translating the 3D DXF into a TXL which would take some additional time. You can of course visually inspect the differences between the models using 3D, plan, and cutting plane views in TBC. This is what I have seen done by many in the past. See the image below for an example. 
    image.png

    2. Any tips for dealing with radius in tbc tunnel without getting the interpolation messed out. The best way to do this is separate the tunnel curve into multiple segments. TBC interpolates between corresponding segments so both tunnel shapes need the same number of segments (lines and arcs). The more segments your shape has, the better the interpolation. The image below shows a standard tunnel shape for drill-blast tunnel where there is a single arc. If interpolating from this arc to a more complex arc with multiple segments, as shown in the second image, you need to break the single arc into the same amount of segments to get a better interpolation. 
    image.png
    image.png


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    Riley Smith
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    Original Message