Publications

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Manuals

Drilled Shafts: Construction Procedures and LRFD Design Methods (FHWA-NHI-10-016, Geotechnical Engineering Circular No. 10, NHI Course NO. 132014).  Brown, D.A., Turner, J.P., and Castelli, R. J. (2010).

 

Design and Construction of Continuous Flight Auger Piles (FHWA-HIF-07-03, Geotechnical Engineering Circular No. 8). Brown, D.A., Dapp, S.D., Thompson, W.R., and Lazarte, C.A. (2007).

 

 

NCHRP Reports

NCHRP Synthesis 360, Rock-Socketed Shafts for Highway Structure Foundations, Transportation Research Board, National Academies, Washington, D.C., 136p, Turner, J. P. (2006)

 

NCHRP Synthesis 418, Developing Production Pile Driving Criteria from Test Pile Data, Transportation Research Board, National Academies, Washington, D.C., 505p, Brown D. A. and Thompson, W.R. (2011)

 

NCHRP Synthesis 478, Design and Load Testing of Large Diameter Open-Ended Driven Piles, Transportation Research Board, National Academies, Washington, D.C., 128p, Brown D. A. and Thompson, W.R. (2015)

 

NCHRP Report 461, Static and Dynamic Lateral Loading of Pile Groups., Transportation Research Board, National Academies, Washington, D.C., 50p, Brown D.A., O’Neill, M.W., Hoit, M., McVay, M., Naggar, H.E. and Chakraborty, S. (2001)

 

nchrp_rpt_697_cover

NCHRP Report 697, Design Guidelines for Increasing Lateral Resistance of Bridge Pile Foundations., Transportation Research Board, National Academies, Washington, D.C., 98p, Rollins, K.M. and Brown D.A. (2011)

 

 

 

 

Other Reports

Turner, B., Brandenberg, S.J. and Stewart, J.P. (2014). “Evaluation of Collapse and Non-Collapse of Parallel Bridges Affected by Liquefaction and Lateral Spreading”, PEER Report 2014/10, Pacific Earthquake Engineering Research Center, University of California, Berkley, August, 2014, 94pp.

Siegel, T.C. (2013). “Liquefaction Mitigation Synthesis Report prepared for the Ground Improvement Committee of the DFI”, DFI Journal Volume 7, Number 1, August 2013, Deep Foundations Institute, pp 13-31.

Thompson, W.R., Brown, D.A., and Hudson, A.B. (2012). “Load Testing of Drilled Shaft Foundations in Piedmont Rock, Lawrenceville, GA, Report for ADSC Southeast Chapter, January, 2012.

Brown, D.A. (2009). “Load Testing of Drilled Shaft Foundations in Limestone, Nashville, TN”, Report for ADSC Southeast Chapter, Feb. 2009.

Brown, D.A. and Thompson, W.R. (2008). “BRF-00008(536) Drilled Shaft Load Test Assessment, Sumter County”, Report for the Alabama Department of Transportation.

Loehr, E.J. and Brown, D.A. (2008). ” A Method for Predicting Mobilization Resistance for Micropiles Used in Slope Stabilization Applications”, A Report Prepared for the Joint ADSC/DFI Micropile Committee.

Pierson, M., Parsons, R.L., Han, J., Brown, D.A. and Thompson, W.R. (2008). “Capacity of Laterally Loaded Shafts Constructed Behind the Face of a Mechanically Stabilized Earth Block Wall”, Report for the Kansas Department of Transportation

Brown, D.A. and Thompson, W.R. (2006). “Report of the Evaluation of Foundation Response to Storm Surge Loading, U.S. 90 Biloxi Bay Bridge” Coastal Research Institute, Univ. of South Alabama.

Brown, D.A. and Thompson, W.R. (1994). “Drilled Shaft Foundation Testing and Design Recommendations, I-65 over Mulberry Fork of the Warrior River, Blount/Cullman Counties, Alabama,” Highway Research Center, Auburn University, Alabama, January, 1994.

Thompson, W.R. (1994). “Axial Capacity of Drilled Shafts Socketed into Soft Rock,” Master of Science Thesis, Department of Civil Engineering, Auburn University, Alabama (available through ADSC Technical Library)

 

Papers and Articles

2016

Graham, D.S., Turner, J.P. and Axtell, P.J. (2016). “Rockfall Hazard Mitigation at the TH-53 Bridge, Virginia, Minnesota” Proceedings: 67th Highway Geology Symposium, pp. 1-20.

Siegel, T. C. and Lucarelli A. (2016). “Theory and modelling of negative skin friction on a pile in soil” DFI Journal – The Journal of the Deep Foundations Institute, Vol. 10 (3), pp. 135-142.

Turner, B., Brandenberg, S., and Stewart, J. (). “Case Study of Parallel Bridges Affected by Liquefaction and Lateral Spreading.” J. Geotech. Geoenviron. Eng. , 10.1061/(ASCE)GT.1943-5606.0001480, 05016001.

2015

Axtell, P.J., Muchard, M.K., and Lamb, R.A. (2015) “A Summary of Load Test Results on Large Diameter Open-Ended Pipe Piles in Minnesota”, Proceedings: Deep Foundations Institute 40th Annual Conference, pp. 169-178.

Axtell, P.J. and Siegel, T.C. (2015). “Sustainability and Reuse of Foundations for the Hurricane Deck Bridge”, Deep Foundations, Jan/Feb 2015, Deep Foundations Institute, Hawthorne, NJ, pp 77-80.

Dasenbrock, D.D., Axtell, P.J., and Budge, A.S., (2015). “The Unexpected Consequences of a Small Side-Hill Fill.”  Proceedings of The  63rd Annual University of Minnesota Geotechnical Engineering Conference, St. Paul, MN, USA.

Graham, D.S., Axtell, P.J., Muchard, M.K., and Bailey, J.D. (2015) “Effect of Axial Compression on Lateral Pile Response: Laterally Loaded Test Pile Comparison”, Proceedings: Deep Foundations Institute 40th Annual Conference, pp. 15-24.

Luna, R., Dixon, D.T., Kershaw, K.A., and Siegel, T.C. (2015). “Monitoring Micropile Foundations of Bridge during Construction .” IFCEE 2015. March 2015, pp 878-889.

Siegel, T.C. and Bivens, R.M. (2015). “Numerical Modeling in Micropile Design for a Pusher Furnace.” IFCEE 2015. March 2015, pp 890-898.

Siegel, T.C. and Faust, P. (2015). “Overburden Effect on the Axial Resistance of Instrumented CFA Piles.” IFCEE 2015. March 2015, pp 703-711.

Turner, B. and Brandenberg, S. (2015) “Pile Pinning and Interaction of Adjacent Foundations During Lateral Spreading”, DFI Journal, Volume 9, Issue 2.

2014

Axtell, P.J. and Siegel, T.C. (2014). “Sustainability and Consideration for the Re-use of Foundations for the Hurricane Deck Bridge”, Proceedings of the 39th Annual Conference on Deep Foundations, 2014, Atlanta, GA, USA, pp 163-170.

Boeckmann, A.Z., Myers, S.G., Uong, M., and Loehr, J.E. (2014). “Comparison of Drilled Shaft Structural Response from Strain Gage and Shapeaccelarray (SAA) Data”, Proceedings of the 39th Annual Conference on Deep Foundations, 2014, Atlanta, GA, USA, pp 141-150.

Siegel, T.C., Lamb, R., Dasenbrock, D., and Axtell, P.J. (2014). “Neutral Plane Method for Drag Force of Deep Foundations and
the AASHTO LRFD Bridge Design Specifications”, Proceedings of The 62nd University of Minnesota Annual Geotechnical Engineering Conference, St. Paul, MN, USA.

Turner, B.J.  (2014). Evaluation of Influence on Lateral Spreading Displacement Demand for Adjacent Bridges”, Proceedings of the 39th Annual Conference on Deep Foundations, 2014, Atlanta, GA, USA.

Turner, B.J. and Turner, J.P. (2014). “Friction Loss in Tieback Anchors Used for Landslide Stabilization”, Proceedings of the 39th Annual Conference on Deep Foundations, 2014, Atlanta, GA, USA, pp 185-192.

2013

Axtell, P.J., Brown, D.A., Lamb, R.A., Graham, D.S., and Ryan, W.G. (2013). “St. Croix Bridge, Minnesota: The Influence of Construction on the Axial Resistance of Drilled Shaft Foundations in Weak Sandstone”, Proceedings of the 38th Annual Conference on Deep Foundations, 2013, Phoenix, AZ, USA, pp 125-133.

 Graham, D.S., Dapp, S.D., Brown, D.A., and McGillivray, R.T. (2013). “Selmon Expressway: Case History of Drilled Shaft Design for Extreme Variability”, Proceedings of the 38th Annual Conference on Deep Foundations, 2013, Phoenix, AZ, USA, pp 317-328.

Saye, S.R., Brown, D.A., and Lutenegger, A.J. (2013). “Assessing Adhesion of Driven Pipe Piles in Clay Using Adaptation of Stress History and Normalized Soil Engineering Parameter Concept”, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, July 2013, pp1062-1074.

Siegel, T.C., Drake, D.F., and Drumm, E.C. (2013). “Application of Stability Charts and Reliability Concepts for Simplified Analysis of a Void in Soil Overlying Karst Bedrock”, Proceedings of the 13th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, 2013, Carlesbad, NM, USA, pp 37-44.

Siegel, T.C., Lamb, R., Dasenbrock, D., and Axtell, P.J. (2013). “Alternative Design Approch for Drag Load and Downdrag of Deep Foundations within the LRFD Framework”, Proceedings of the 38th Annual Conference on Deep Foundations, 2013, Phoenix, AZ, USA, pp 23-39.

Turner, J.P., and Halvorson, M. (2013). “Design Method for Slide-Stabilizing Micropile Walls”, GeoCongress 2013 Stability and Performance of Slopes and Embankments III, Geotechnical Special Publication No. 231, ASCE.

2012

Brown, D.A. (2012). “Factors Affecting the Selection and Use of Drilled Shafts for Transportation Infrastructure Projects”,  ADSC EXPO 2012 Geo-Construction Conference Proceedings, March 14-17, 2012, San Antonio, TX, pp25-35.

Brown, D.A. and Thompson, W.R. (2012) “ADSC Research Supports Improved Design of Drilled Shaft Foundations in Atlanta Area Piedmont Rock”Foundation Drilling, Vol. 33, No. 2, February 2012, pp.27-39.

Siegel, T.C. (2012). “Testing of Augered Cast-in-Place Piles installed with Varying Auger Rotations”, Full-Scale Testing and Foundation Design, Honoring Bengt H. Fellenius, Geotechnical Special Publication No. 227, Edited by M.H. Hussein, K. R. Massarsch, G.E. Likins, and R.D. Holtz, ASCE, pp333-348.

Strark, T.D., Beaty, M.H., Byrne, P.M., Gonzalo, C., Walberg, F.C., Perlea, V.G., Axtell, P.J., Dillon, J.C., Empson, W.B., and Mathews, D.L. (2012). “Seismic Deformation Analysis of Tuttle Creek Dam”, Canadian Geotechnical Journal, Vol. 48, No. 3, March 2012, pp.323- 343.

Thompson, W.R. (2012). “ADSC Research Project Update: Rock Sockets in the Southeastern U.S”, ADSC EXPO 2012 Geo-Construction Conference Proceedings, March 14-17, 2012, San Antonio, TX, pp103-117.

Turner, J.P., Duffy, J.D., Buell, R. and Zheng, X (2012). “Foundations for the Bridge at Pitkins Curve”, GeoCongress 2012 State of the Art and Practice in Geotechnical Engineering, Geotechnical Special Publication No. 225, ASCE, pp414-423.

2011

Axtell, P.J. and Brown, D.A. (2011). “Case History – Foundations for the New Mississippi River Bridge – St.Louis”, DFI Journal Volume 5, Number 2, December 2011, Deep Foundations Institute, pp3-15.

Brown, D.A. (2011). “Constructability Considerations When Designing Drilled Shaft Foundations for Bridges”, Geo-Strata, May/June 2011, pp. 48-54.

Brown, D.A., Axtell, P.J., and Kelley, J. (2011). “The Alternate Technical Concept Process for the Foundations at the New Mississippi River Bridge, St. Louis”, Proceedings of the 36th Annual Conference on Deep Foundations, 2011, Boston, MA, USA, pp171-177.

Dapp, S.D., Brown, D.A., and Parsons, R.L. (2011). “Hyperbolic P-Y Model for Static and Cyclic Lateral Loading Derived from Full-Scale Lateral Load Testing in Cemented Loess Soils”, DFI Journal Volume 5, Number 2, December 2011, Deep Foundations Institute, pp35-43.

Siegel, T.C. (2011). “Simplified Settlement Model for a Shallow Foundation on Composite Ground with Rigid Piles”, DFI Journal Volume 5, No. 1, June 2011, Deep Foundations Institute, pp68-72.

Siegel, T.C. and NeSmith, W. (2011) “Confirmation of Composite Ground Design Using Plate Load Tests”, Proceedings of the 36th Annual Conference on Deep Foundations, 2011, Boston, MA, USA, pp303-311.

2010

Axtell, P.J. (2010). “Mississippi River Bridge Project Includes Record Load Test: A Three Part Story”, Foundation Drilling, Vol. 31, No. 7 September/October 2010.

Axtell, P.J., Stark, T.D., and Dillon, J.C. (2010). “Peak and Post-Peak Shear Strength of Cement-Bentonite”, DFI Journal Volume 4, No. 1, August 2010, Deep Foundations Institute, pp59-65.

Brown, D.A. and Axtell, P.J. (2010). “Design and Construction Challenges at the kcICON Bridge”, Deep Foundations Magazine, Spring 2010.

Dapp, S.D. and Brown, D.A. (2010). “Evaluation of Base Grouted Drilled Shafts at the Audubon Bridge”, GeoFlorida 2010, Advances in Analysis, Modeling and Design, Geotechnical Special Publication No. 199, ASCE, pp1553-1562

Loehr, J.E. and Brown, D.A. (2010). “Design of Micropiles for Slope Stabilization”, Foundation Drilling, Vol. 31, No. 6 August 2010.

Rollins, K.M., Herbst, M., Adsero, M. and Brown, D.A. (2010) “Jet Grouting and Soil Mixing for Increased Lateral Pile Group Resistance”, GeoFlorida 2010, Advances in Analysis, Modeling and Design, Geotechnical Special Publication No. 199, ASCE, pp1563-1572.

Siegel, T.C. (2010). “Load Testing and Interpretation of Instrumented Augered Cast-in-Place Piles”, DFI Journal Volume 4, No. 2, December 2010, Deep Foundations Institute, pp69-71.

Siegel, T.C. and NeSmith, W.M. (2010). “Large-Scale Plate Load Testing of Ground Improvement Using Displacement Grout Columns”, GeoFlorida 2010, Advances in Analysis, Modeling and Design, Geotechnical Special Publication No. 199, ASCE, pp2398-2405.

2009

Axtell, P.J., Thompson, W.R., and Brown, D.A. (2009). “Drilled Shaft Foundations for the kcICON Missouri River Bridge”, Deep Foundations Institute 34th Annual Conference on Deep Foundations, Conference Proceedings 2009, October 21-23, 2009, Kansas City, Missouri, pp. 3-12.

Axtell, P.J., Stark, T.D., and Dillon, J.C. (2009). “Strength Difference Between Clam-Shell and Long-Reach Excavator Constructed Cement-Bentonite Self-Hardening Slurry Walls”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, Geotechnical Special Publication No. 187, ASCE, pp. 297-304.

Brown, D.A. (2009). “Management of Risk in Deep Foundations with Design-Build”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 1-11.

Brown, D.A. and Thompson, W.R. (2009). “Drilled Shaft Performance in Cemented Calcareous Formations in the Southeast United States”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 119-126.

Brown, D.A. and Thompson, W.R. (2009). “Performance of Drilled Shaft Foundations in Limestone, Nashville, Tennessee”’ Foundation Drilling, Vol. 30, No.4 May 2009.

Loehr, J.E and Huaco, D.R. (2009). “Probabilistic Calibration of Resistance Factors for Slope Stability”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in In-Situ Testing, Analysis, and Reliability of Foundations, Geotechnical Special Publication No. 186, ASCE, pp. 297-304.

Parson, R.L., Johnson, R.M., Brown, D.A., Dapp, S.D., and Brennan, J.J. (2009). “Characterization of Loess for Deep Foundations”, DFI Journal Volume 3, No. 2, November 2009, Deep Foundations Institute, pp14-24.

Parsons, R.L., Pierson, M., Han, J., Brennan, J.J., and Brown, D.A. (2009). “Lateral Load Capacity of Cast-in-Place Shafts Behind an MSE Wall”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in In-Situ Testing, Analysis, and Reliability of Foundations, Geotechnical Special Publication No. 186, ASCE, pp. 560-567.

Rollins, K.M., Adsero, M.E., and Brown, D.A. (2009). “Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, Geotechnical Special Publication No. 187, ASCE, pp. 265-272.

Siegel, T.C. and McGillivary, A. (2009). “Interpreted Residual Load in an Augered Cast-in-Place Pile”, Proceedings, Annual DFI Conference, Kansas City, MO.

Siegel, T.C. and NeSmith, W.M. (2009). “Shortcomings of the Davisson Offset Limit Applied to Axial Compressive Load Tests on Cast-in-Place Piles”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 568-574.

Stark, T.D., Axtell, P.J., Lewis, J.R., Dillon, J.C., Empson, W.B., Topi, J.E., and Walberg, F.C. (2009). “Soil Inclusions in Jet Grout Columns”, DFI Journal Volume 3, No. 1, May 2009, Deep Foundations Institute, pp33-44.

Thompson, W.R., Axtell, P.J. and Smith, E.M. (2009). “LRFD in Practice – A Case Study for Foundation Designers”, 41st STGEC Conference, Wilmington, North Carolina, November, 2009.

Thompson, W.R., Held, L., and Saye, S. (2009). “Test Pile Program to Determine Axial Capacity and Pile Setup for the Biloxi Bay Bridge”, DFI Journal Volume 3, No. 1, May 2009, Deep Foundations Institute, pp13-22.

Thompson, W.R., Hill, J.R., and Loehr, J. E. (2009). “Case History: Value Engineering of Driven H-Piles for Slope Stability on the Missouri River”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp207-214.

2008

Axtell, P.J. and Stark, T.D. (2008). “Increase in Shear Modulus by Soil Mix and Jet Grout Methods”, DFI Journal Volume 2, No. 1, Nov2008, Deep Foundations Institute, pp11-21.

Brown, D.A. and Thompson, W.R. (2008). “Performance of Drilled Shafts in Cemented Calcareous Formations in the Southeast”, Foundation Drilling, Vol. 29, No.3 March/April 2008

Fellenius, B. H. and Siegel, T.C. (2008). “Pile Drag Load and Downdrag in a Liquefaction Event”, Journal of Geotechnical and Environmental Engineering, ASCE, Vol 134, No. 9.

Siegel, T.C., NeSmith, W.M., and NeSmith, W.M. (2008). “Increase in Cyclic Liquefaction Resistance of Sandy Soil Due to Drilled Displacement Piles”, Proceedings, Earthquake Engineering and Soil Dynamics IV Conference, Sacramento, CA.

2007

Bivens, M.J. and Siegel, T.C. (2007). “Case Histories of Micropiles in Karst: The Influence of Installation on Design and Performance”, Contemporary Issues in Deep Foundations, GeoDenver Conference, Geotechnical Special Publication No. 158, ASCE.

Brown, D.A. (2007). “Rapid Lateral Load Testing of Deep Foundations”, DFI Journal Volume 1, No. 1, Sep 2007, Deep Foundations Institute, pp. 54-62.

Brown, D.A. and Schindler, A. (2007). “High Performance Concrete and Drilled Shaft Construction”, Geotechnical Special Publication No. 158, Geo-institute GeoDenver 2007 Conference.

Parsons, R.L., Brown, D.A., Brennan, J.J., Johnson, R.M., and Schuler, L. (2007). “Designing Drilled Shafts in Loess”, Foundation Drilling Magazine, August 2007, pp27-30

Siegel, T.C., Cargill, P.E., and NeSmith, W.N. (2007). “CPT Measurements Near Drilled Displacement Piles”, Proceedings, FMGM, Boston, MA.

Siegel, T.C., NeSmith, W.M., NeSmith, W.M., and Cargill, P.E. (2007), “Ground Improvement Resulting From Installation of Drilled Displacement Piles”, 32nd DFI Annual Conference, Colorado Springs, CO.

2006

Axtell, P.J., Loehr, J.E., and Jones, D.J. (2006). “Case History: Multiple Axial Statnamic Tests on a Drilled Shaft Embedded in Shale” Deep Foundations Institute 31st Annual Conference, October 4-6, 2006, Washington, D.C.

Bivens, M.J. and Siegel, T.C. (2006). “Case Histories of Micropiles in Karst: The Influence of Installation on Design and Performance”, Contemporary Issues in Deep Foundations, GeoDenver Conference, Geotechnical Special Publication No. 158, ASCE.

Brown, D.A., Thompson, W.R., and Nichols, S. (2006). “Performance Specifications for Drilled Piles,” Proc. of 10th International Conference on Deep Foundations, Amsterdam, Netherlands.

Camp, W.M. and Siegel, T.C. (2006). “Failure of a Column-Supported Embankment Over Soft Ground”, Proceedings, Fourth International Conference on Soft Soils, Vancouver, B.C.

Dapp, S., Muchard, M., and Brown, D. (2006). “Experiences with Base Grouted Drilled Shafts in the Southeastern United States,” Proc. of 10th International Conference on Deep Foundations, Amsterdam, Netherlands.

Mullins, G., Winters, D., and Dapp, S. (2006). “Predicting End Bearing Capacity of Post-Grouted Drilled Shaft in Cohesionless Soils,” Journal of Geotechnical and Geoenvironmental Engineering, Volume 132, No. 4, ASCE, pp478-487.

2005

Brown, D.A. (2005). “Practical Considerations in the Selection and Use of Continuous Flight Auger and Drilled Displacement Piles”, Geotechnical Special Publication No. 132, ASCE, pp. 1-11.

Brown, D.A. and Schindler, A. (2005). “The Use of Self-Consolidating Concrete for Drilled Shaft Construction: Preliminary Observations from the Lumber River Bridge Field Trials”, Proc. of ADSC GEO3 QA/QC Conference, Dallas, TX.

Kitchens, L., Thompson, W.R., and Housley, S.A. (2005). “Case History: Utilizing Load Test Data to Value Engineer Drilled Shaft Foundations,” Proc. of ADSC GEO3 QA/QC Conference, Dallas, TX.

Siegel, T.C. and Cargill, P.E. (2005). “Use of the Cone Penetration Test for Geotechnical Site Characterization in Clay-Mantled Karst”, Proceedings, 10th Multi-Disciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, San Antonio, TX.

Siegel, T.C., Caskey, J.M., and Huckaba, D.A. (2005). “Combination of Ground Improvement Techniques for Support of Shallow Foundation in Karst”, Innovations in Grouting and Soil Improvement, GeoFrontiers Conference, Geotechnical Special Publication No. 136, ASCE.

2004

Axtell, P.J., Owen, J.W., and Vollink, S.D. (2004) “Increase in Pile Capacity with Time in Missouri River Alluvium” Fifth International Conference on Case Histories in Geotechnical Engineering, April 13-17, 2004, New York, NY.

Brown, D.A. (2004). “Recipe for Success with Drilled Shaft Concrete” Foundation Drilling, ADSC, Dallas, TX, Nov., pp. 16-24.

Brown, D.A. (2004). “Zen and the Art of Drilled Shaft Construction: The Pursuit of Quality” Invited keynote lecture and paper, Geotechnical Special Publication No. 124, ASCE, pp. 19-33. Geo-Institute International Conference on Drilled Foundations, Orlando.

2000 – 2003

Brown, D.A. (2002). “Effect of Construction on Axial Capacity of Drilled Foundations in Piedmont Soils,” Journal of Geotechnical and Geoenvironmental Engineering, Volume 128, No. 12, ASCE, pp967-973.

Brown, D. A., Muchard, M., and Khouri, B. (2002). “The Effect of Drilling Fluid on Axial Capacity, Cape Fear River, NC,” Proc. of the Deep Foundations Inst. 27th Annual Meeting, San Diego.

Siegel, T.C., Chnag, C.C., and Loizias, L. (2003). “Seismic Stability of Rock Islands for Bridge Protection in Coastal South Carolina”, Proceedings, European Conference of Soil Mechanics and Geotechnical Engineering, Prague, Czech Republic.

Siegel, T.C. and Mackiewicz, S.M. (2003). “Failure of Axially Loaded Augered Cast-in-Place Piles in Coastal South Carolina”, Proceedings, Soil and Rock America: 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, Boston, MA.

Siegel, T.C., Camp, W.M., Chnag, C.C., and Loizias, L. (2002). “Site Response of Improved ground in the Coastal Eastern United States”, Proceedings, 4th International Conference on Ground Improvement Techniques, Kuala Lumpur, Malaysia.

Siegel, T.C. and McCrackin, D.W. (2001). “Geotechnical Characterization and Modeling of a Shallow Karst Bedrock Site. Proceedings, 8th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Louisville KY.

Siegel, T.C., Cargill, P.E., and McCrackin, M.W. (2001). “Geosynthetic Reinforcement Above Sinkholes to Protect Landfill Liners”, Proceedings, 8th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Louisville KY.

Siegel, T.C., Belgeri, J.J., and McCrackin, M.W. (2001). “Case History of East Tennessee Karst: Static Stability of Some Shallow Caves”, Proceedings, 2001: A Geo-Odyssey – Foundations and Ground Improvement, Geotechnical Special Publication No. 113, Blacksburg, VA.

1990 – 1999

Brown, D.A. (1999). “An Experiment with Statnamic Lateral Loading of a Drilled Shaft”, Geotechnical Special Publication No. 88: Analysis, Design, Construction and Testing of Deep Foundations, Proceedings of the OTRC ‘99 Conference, Austin, Texas, April 29-30, 1999, ASCE, pp309-318.

Brown, D.A. (1994), “Evaluation of Static Capacity of Deep Foundations from Statnamic Testing” plus discussion, Geotechnical Testing Journal, GTJODJ, Vol. 17, No. 4, December 1994, pp.403-414.

Thompson, W.R. and Brown, D.A. (1994). “Axial Response of Drilled Shafts in Intermediate Geomaterials in the Southeast,” Recent Advances in Deep Foundations “” Proceedings, Ohio River Valley Soils Seminar XXV, Lexington, Kentucky, pp 3-1 “” 3-10.

Brown, D.A. (1990). “Construction and Design of Drilled Shafts in Hard Pinnacled Limestone,” Transportation Research Record 1277, pp148-152.

Specialists in Deep Foundation Design, Construction, and Testing and Slope Stability Problems