As you can tell by some of the responses that have been posted already, there is no simple answer to your question they are willing to give since they don´t know your problem exactly. If you are evaluating the effects of river currents, wave runup, etc. then many other factors com into play...
If the soil nail wall was designed properly with the knowledge that there are buried utilities behind it, then the soil above the top row of anchors should have been modeled as cohesionless. This is because a backfilled trench zone can not take much in the way of tension transversely...
The northwest side of the river. Set C is forming a bottom plane dipping into slope on that side of the river. On the other side it is adversely bedded right into the river.
I have used almost every available slope stability program on the market one time or another. In my opinion, the best one is SLOPE/W by Geosoft. Hands down!<br>
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