How can I solve the grid analysis and waterproof problems

Hello, How can I solve the grid analysis and waterproof problems
1time_2023-09-26T144809.176416.zip (60.6 MB)

You will likely need to adjust the meshing parameters do to the tiny scale of your model. You first need to consider if this is doable with DEM since 10 microns particles are going to drive the time step down and it may not be practical to run.