Basics of Foundation Design by Bengt H. Fellenius (2014 Edition)

A foundation design text book addressing settlement analysis, piled foundations, footings, retaining walls, and vertical drain projects, supplementing conventional more comprehensive geotechnical textbooks. Revised February 2014. 

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Basics of Foundation Design by Bengt H. Fellenius (2014 Edition)
http://www.fellenius.net/papers/335%20Red%20Book%20-%20Basics%20of%20Foundation%20Design.pdf