seepage 3

[sundream]

has anyone used the software SEEP/w ?

 

[Erdbau]

Yes.

 

[novicesoilserf]

Yes, I've used SEEP/W 2007. It's a powerful program, but you have to be very careful on your mesh, boundary conditions, and head boundary condition modeling. You can get some really neat time stepped visual results, but on the bad side you can get some really generic error messages that don't really guide you to what is going wrong. The manual is really good about discussing most things related to seepage, but falls short on guidance on error messages and their meanings. Be careful about steady state modeling when the actual conditions are transient. Good luck!

"Information is not knowledge" Albert Einstein

 

[sundream]

I just started to use SEEP/W but i'm confused about the boundry conditions and also the -ve pore water pressure to calculate the hydraulic conductivity for each material

 

[Erdbau]

Confused about the boundary conditions: how so?

Hydraulic conductivity will decrease with increasing negative pore pressure (suction). This relationship is referred to as the hydraulic conductivity function (K-function). SEEP/W uses K-functions to determine hydraulic conductivity in areas of the model that are above the phreatic surface (groundwater table). You may or not need to define the K-function depending on your model.

 

[sundream]

I mean the head and down stream boundary conditions . did you mean if the model only below the phreatic surface then no need for the k-function i;m trying to model the seepage through an earthdam with crack at the downstream side but i'm not sure if I can do that using SEEP/w ?

 

[sundream]

How can I choose the soil model as saturated only ?in SEEP/W 2007 it is in draw menu under material properties but i have SEEP/W 2004 and i cannt find it in the draw menu any help is appreciated

 

[seeplearner]

yes, if the soil is unsaturated, that's when you need to define k-funtion. If the soil is saturated, you know the k already, so no need to worry about k-funtion. I'm not using SEEP 2004 so I dont know about its appearance but there must be somewhere to input a value of k, that's how the soil is modelled as saturated.

 

[seeplearner]

Does anyone know how to remove a flow path? I search HELP and it says either click on the flow path or make a rectangle to select it and then remove. But I can not select it either way. Why is dat?

 

[seeplearner]

oh... now I know how to do that.