Void through a topography

[Marcus.Isacsson]

Hi fellas!

I wonder if it's somehow possible to create a void through a topography? (beneath the surface)
We need to create a hole for a tunnel.



Also, I noticed that Revit creates the depth when you cut it with a section box. Is it possible to create real surfaces in another way or how does it all work?

When I export the same topography to an IFC I get different results depending on the section box.

[cbcarch]

Try:

1. Using a Building Pad

2. Use Dynamo--a bit more complicated, but it works. See this: https://www.linkedin.com/pulse/underground-modelling-within-revit-gary-fellows

[Marcus.Isacsson]

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@cbcarch wrote:

Try:

1. Using a Building Pad

2. Use Dynamo--a bit more complicated, but it works. See this: https://www.linkedin.com/pulse/underground-modelling-within-revit-gary-fellows

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Thanks for your answers.
1. How can you create a tunnel with the building pad tool?
2. Thanks for sharing this, looks neat. Couldn't find the Dynamo script though. 

[cbcarch · Accepted solution]

It's a combination of toposurface and a floor--

The floor can be made to match the shape of the toposurface.

http://au.autodesk.com/au-online/classes-on-demand/class-catalog/2013/revit-for-architects/ab3340#ch...

[Sahay_R · Accepted solution]

Look at this thread - 

https://forums.autodesk.com/t5/revit-architecture-forum/topography-and-tunnels/td-p/4312041