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Disclaimer

Each download presented here is for educational purposes only and is not intended to render engineering or other professional services. Use of the download in whole or in part for design, construction or any other application is at the sole risk of the user. If such engineering or professional services are required, the assistance of an appropriate professional should be sought. NCS GeoResources, LLC, shall not be responsible or liable in any way for any errors, omissions, or damages arising out of the use of the information provided in any download.

Technical Downloads

Example of Affinity Chart for Quality Function Deployment (QFD) System of Asset Management
Authored By: Naresh C. Samtani, NCS GeoResources, LLC

Example of Asset Management Using QFD System and Affinity Chart
Authored By: Naresh C. Samtani, NCS GeoResources, LLC

FHWA Publication on Hollow Bar Soil Nails Review of Corrosion Factors and Mitigation Practice [Revised]
Authored By: Naresh C. Samtani, PE, PhD, Edward A. Nowatzki, PE, PhD
Report Date: August 2010

Hollow-Core Soil Nails State-of-the-Practice
Authored By: Naresh C. Samtani, PE, PhD, Edward A. Nowatzki, PE, PhD

Incorporation of Foundation Deformations in AASHTO LRFD Bridge Design Process (First Edition)
Authored By: Naresh C. Samtani, PE, PhD, D.GE, F.ASCE, John M. Kulicki, PE, PhD

Incorporation of Foundation Movements in AASHTO LRFD Bridge Design Process – Second Edition
Authored By: Naresh C. Samtani, PE, PhD, D.GE, F.ASCE, John M. Kulicki, PE, PhD

Integrity Testing of Drilled Shafts – Existing and New Techniques
Authored By: Naresh C. Samtani, PE, PhD, Frank Jalinoos, Dennis M. Poland, RG

Selection of Spread Footings on Soils to Support Highway Bridge Structures
Authored By: Naresh C. Samtani, PE, PhD, Edward A. Nowatzki, PE, PhD, Dennis R. Mertz, PE, PhD

Soils and Foundations Reference Manual – Volume 1
Authored By: Naresh C. Samtani, PE, PhD, Edward A. Nowatzki, PE, PhD

Soils and Foundations Reference Manual – Volume 2
Authored By: Naresh C. Samtani, PE, PhD, Edward A. Nowatzki, PE, PhD

LRFD Related - Part 1

ADOT DS-1 (Drilled Shaft – Axial Resistance)
Authored By: NCS GeoResources, LLC
Report Date: September 2021

ADOT DS-2 (Drilled Shaft – Gravels and Gravelly Soils)
Authored By: NCS GeoResources, LLC
Report Date: May 2011

ADOT DS-3 (Drilled Shaft – Lateral Analysis)
Authored By: NCS GeoResources, LLC
Report Date: September 2011

LRFD Example Problem 1 – CIP Wall with Level Backfill
Authored By: NCS GeoResources, LLC
Report Date: October 2011

LRFD Example Problem 2 – CIP Wall with Sloping Backfill
Authored By: NCS GeoResources, LLC
Report Date: October 2011

Presentation at Western Bridge Engineers’ Seminar – Phoenix 2011
Authored By: Naresh C. Samtani, PE, PhD, D.GE, F.ASCE, Amin Islam, PE, PhD
Report Date: September 2011

Some Practical Considerations for LRFD Implementation for Geotechnical Features
Authored By: Naresh C. Samtani, PE, PhD
Report Date: March 2012

LRFD Related - Part 3

A Primer on LRFD
Authored By: Naresh C. Samtani, PE, PhD, D.GE, F.ASCE

LRFD Article 1: LRFD for Substructures – Limit States and Interaction between Structural and Geotechnical Specialists
Authored By: NCS GeoResources, LLC
Report Date: May 2007

LRFD Article 4: LRFD for Substructures – Consideration of Deterioration of Foundations and Retaining Walls
Authored By: NCS GeoResources, LLC
Report Date: December 2016

LRFD For Bridge Substructures Presentation Notes (AzSCE May 8, 2007)
Authored By: Naresh C. Samtani, PE, PhD, D.GE, F.ASCE
Report Date: May 2007