Terzaghi’s Bearing Capacity Factor - Ng V. 2.0

[roadrunner13]

Regarding thread256-468265 : mar2805, the formula you are using also comes from Terzaghi's book, p. 124. The answer to your inquiry is detailed in the book Bowles Foundation Analysis and Design, p. 222 & around it.

The book has a very comprehensive explanation, so I won't repeat it here.

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