I would approach your client by saying the cost of the foundation will be small when compared to the cost of the generator. 3*mass is a GREAT rule-of-thumb.
The books defines d=h1. It states that this occurs when phi1=alpha=theta=0.
On the previous pages, it defines alpha = slope of the soil above the wall (zero in this case, since it is flat).
phi1 = friction angle of the wall (Coulomb theory) = 0 (doesn't this essentially makes it a Rankine...
I have came across an interesting type of retaining wall I had never seem before. I found this on a Brazilian book on retaining walls, and the particular feature I am interested in is the "intermediate slab" and shown in the attachment. It appears that the intermediate (or relieving) slab...
