Need help with Goswami Solution

utilityeng said:

Practice Exam for the Civil PE Exam: Breadth + Water Resources Depth

Question 008

This is a settlement/consolidation problem. The varved clay layer is 10 ft thick and has a 12 ft layer of sand over it.

In the solution, when solving for consolidation: s = H(delta e)/(1+e0), I thought H should equal the thickness of the clay layer (10ft), at least that's what the ALL-IN-ONE reference states.

Instead, the solution has H=120

Is this an error, or am I missing something?

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Hemi79 said:

Its not a conversion to inches? ( 10ft * (12in/1ft) ). I don't have the problem in front of me, just saying.... 

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