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I agree, we are discussing it from different perspectives. I had stated the different stresses to show I had a different number than your 20" and hopefully not confuse the person who had asked the initial question. I too hope someone another GEO guru can pipe in. I know this discussion is...

For your question Number 3, you are dealing with clay (instead of just sand) starting above the critical depth, (using 15B from Das Foundations book, 2nd ED), therefore lateral earth pressure does not max out at the 15B depth. It must be calculated until you reach the driven depth, since your...

While I will defer to IlPadrino (thank you for your comments) in Coduto's book (Geotechnincal Enginnering - Principles and Practices) he states that ". . .consolidation can only occur as some of the water is squeezed out of the voids." (page 372, 2nd paragraph). Does this not infer that the...

I believe this is incorrect. When calculating the primary consolidation, you are using the 'effective pressure'. As per the CERM; 10th ED., "Only the effective pressure causes consolidation." Therefore, the addition of the pore water pressure is incorrect. I had the same issue. My answer to...

I was wondering if someone could suggest a good book or website on the topic of 'mechanically reinforced retaining'. The Das books I have (Principles in Geotechnical Engineering (Ed 2 and 5)and Foundation Engineering (Ed 2)) do not cover this topic. P.S. - I am a trying Geo for Depth for the...

Are you asking in reference to the exam as opposed to in work practice? I would state in general (means my opinion) the type of approach will have to be specified in the exam question. There is more than one way to answer the questions but given the approach of the exam, on approach may be...