Hello Forum,
Sometimes we have excavations or well borings and we want to analyse the ground's permeability/storage properties through observation of the temporal evolution of the recovery/refilling after dewatering of the excavation/boring.
I do not know how to represent this for the case of a 1,2 m diameter and 15 m deep boring which was pumped dry. Applying seepage face to the boundary nodes assumes a constant water level in the pit/well. In reality the seepage will lead to a water level rise in the boring and as consequence the outward gradients will be considerably reduced. In the above case we observed a rise of around 9 m in only 90 minutes.
To represent this process we needed a kind of loop in which the seepage volume at the end of a time step is converted into a water level change inside the pit/well. Applying a fine temporal discretization the solution should be straight forward.
Any clues how to manage this with FF?
Regards
Héctor
