<strong>Brown, D.A., Turner, J.P., and Castelli, R.J. (2010).</strong> Drilled Shafts: Construction Procedures and LRFD Design Methods, FHWA NHI-10-016, GEC 10, Federal Highway Administration, Washington, DC, 970p.

<a href="https://www.fhwa.dot.gov/engineering/geotech/pubs/nhi10025/nhi10025.pdf…;