Cleaning up mine geometry for numerical modeling

Hey there!

I work in geomechanics and I’m preparing a numerical model for this mine:

Aesthetically, it looks nice but this model is far from being perfect for numerical modeling purposes, because it needs to be seamlessly meshed with a Rhino plugin called Griddle (Itasca) and the geometry has some undesirable geometrical details which need to be fixed somehow.

For example, if we zoom-in in certain areas of the geometry, we can see things like this:

Protrusions and non-smooth transitions between the corridors of the mine and the mine-panels. So, the question is, how can I get rid of these imperfections?

Some considerations:

1)the tunnels are cylindrical, and the panels are pseudo-rectangular.

  1. these figures shown are polysurfaces, Griddle needs a Rhino mesh as an input, and it needs to be as nice as possible so the Griddle remesher doesn’t struggle.

  2. if the geometry is clean, Rhino mesh can be a lot better and therefore the upstream operations with Griddle can be enormously facilitated.

  3. I already removed the portion of the panels that were ‘inside’ the tunnels by Boolean splits, so that the tunnels can be in contact with the panels.

Any recommendations? thank you for your time!

These mine models can be a bit of a challenge.

Most of the time repairs need to be made in sections.

I would shrinkwrap to get a good closed mesh. Then use quadremesh and other tools to try and reduce the mesh to fewer faces.