dis-activate elements

hello,

I have a 3D model with different layers. I want to model an excavation in the middle of my model. the area excavated is limited to the first layer and has a rectangular shape. if i select the necessary elements and dis-activate them (inactive elements) will feflow consider it as an excavated area or will it consider it as an impermeable area ?
Is there any other way to model an excavated area in feflow ?

Thank you
Sam

Deactivated elements do not exist in the model. Thus FEFLOW will simply NOT consider the deactivated part at all. It is treated as if it weren't part of the model. So you might have to put boundary conditions on the interface of the active and deactivated parts.

thank you peter. I am thinking of implementing a seepage face BC on the active/inactive element faces... would that work ???
( assuming that at these edges, water will still flow in my excavated area and I want to see of the water table with the excavation face).

Thank you

Yes, this will work fine.

BEst regards,
Peter