Active Soil Determination on a sloping wall

[anthony gravagne]

I have a shotcrete wall tilted back 45 degrees toward the heel side. The wall acts as erosion protection. Is there a relatively simple way to calculate the active pressure coefficient without having to use the DEEP Ex program? It seems to me that as the wall is tilted back, the active soil coefficient is less than it would be for a vertical wall.

Thank you for your consideration.

Tony Gravagne

 

[SlideRuleEra]

Is there a relatively simple way to calculate the active pressure coefficient...

Yes. See my comments about pages 5 and 6 of the "Allan Block Engineering Manual" in this thread.

 

[BigH]

It seems to me that a thin "shotcrete layer" on the slope does not really "stabilize" the slope but acts in, as the OP stated, an erosion protection. It is not known as to the type of material onto which it was shot. For me, the slope needs to be stable on its own accord. That given, the shotcrete will act in tension to any slight movement - presume it is wire-meshed or with fibres.