PARTIAL LIST OF TECHNICAL PAPERS/REPORTS
Howard A. Perko, Ph.D., PE

  1.         Perko, H.A. (2002) Theoretical and Experimental Investigations in Planetary Dust Adhesion, Ph.D. Dissertation, Civil Engineering Department, Colorado State University, Fort Collins, CO
  2.         Perko, H. A. (1996).  Surface Cleanliness Effect on Lunar Soil Shear Strength, Master of Science Thesis, Colorado State University, Fort Collins, CO
  3.         Perko, H.A. (2010) “Underpinning and Shoring for Underground MRI Research Facility at Ohio State University”, Journal of Professionalism, ASCE Press, Reston, VA (In Progress)
  4.         Perko, H. A., and Boulden, J. (2008) “Lateral Earth Pressures on Wood Lagging in Soldier Pile Earth Shoring Systems", DFI Journal, Vol. 2, Deep Foundation Institute, New Jersey
  5.         Perko, H. A. (2007) "Creating Acceptance for Helical Foundations", Structure Magazine, December
  6.         Perko, H.A., Nelson, J.D., and Green, J.R. (2005) “Mars Soil Mechanics Investigation”  Journal of Aerospace Engineering, ASCE Press, Reston, VA
  7.         Perko, H.A., Nelson, J.D., and Sadeh, W.Z. (2001) “Surface Cleanliness Effect on Lunar Soil Shear Strength” April 2001, Journal of Geotechnical and Geoenvironmental Engineering, ASCE Press, Reston, VA
  8.         Perko, H. A. (2010) “Capacity of Full-Displacement Augered Friction Piles", Proceedings of 35th Annual Conference of the Deep Foundation Institute, Hollywood, California (In Progress)
  9.         Thompson, R.W., Rethamel, W., and Perko, H.A. (2006) “Comparison of Constant Volume and Oedometer Swell Pressures”, Proceedings of Unsat 2006, American Society of Civil Engineers, Phonex, AZ
  10.       Perko, H.A. (2005) “Underpinning and Shoring for Underground MRI Research Facility at Ohio State University” Proceedings of Underground Construction in Urban Environments, ASCE Geo-Institute, New York City
  11.        Perko, H.A. and Nelson, J.D. (2002) “Mars Global Surveyor Soil Mechanics Data Analysis” Proceedings of the 7th International Conference on Construction, Operations, and Sciences in Space, Albuquerque, NM, ASCE Press, Reston, VA
  12.        Perko, H.A., Nelson, J.D., and Green, J.R. (2002) “A Review of Planetary Dust Transport, Deposition, Adhesion, and Removal” Proceedings of the 7th International Conference on Construction, Operations, and Sciences in Space, Albuquerque, NM, ASCE Press, Reston, VA
  13.        Perko, H.A., Thompson, R.W., and Nelson, J.D. (2000).  “Suction Compression Index Based on Results from CLOD Tests”, Advances in Unsaturated Geotechnics, C.D. Shackelford, S.L. Houston, and N.Y. Chang, Eds., ASCE Press, Reston, VA, pp. 393-408.
  14.        Perko, H.A. (2000).  “Energy Method for Predicting the Installation Torque of Helical Foundations and Anchors”, New Technologies and Design Developments in Deep Foundations, N.D. Dennis, Jr., R. Casteli, and M.W. O’Neill, Eds., ASCE Press, Reston, VA, pp. 342-352.
  15.        Perko, H.A. and Nelson, J.D. (2000) “Effects of Vacuum and Reduced Gravity on Bearing Capacity”, Proceedings of the 6th International Conference on Construction, Operations, and Sciences in Space, Albuquerque, NM, ASCE Press, Reston, VA, pp. 842-850.
  16.        Perko, H.A. (1998).  “Surface Cleanliness Based Dust Adhesion Model”, Proceedings of the 5th International Conference on Construction, Operations, and Sciences in Space, Albuquerque, NM, ASCE Press, Reston, VA, pp. 495-505.
  17.        Perko, H.A., Nelson, J.D., and Sadeh, W.Z. (1996).  “Surface Cleanliness Effect on Lunar Soil Mechanics”, Proceedings of the 4th International Conference on Construction, Operations and Sciences in Space, Albuquerque, NM, ASCE Press, Reston, VA, pp. 689-698.
  18.        Perko, H. A. (1996).  “Effects of Surface Cleanliness on Lunar Soil Shear Strength”, Proceedings of the Annual Meeting of the American Institute of Astronautics and Aeronautics, Reno, NV, AIAA 96-0015.
  19.        Perko, H.A., Green, J.R., and Nelson, J.D. (2001) “Investigations into Planetary Dust Adhesion” Proceedings of the Annual Meeting of the Division of Planetary Scientists, American Astronomical Society, New Orleans, LA
  20.        Perko, H.A., Green, J.R., and Nelson, J.D. (2000) “Preliminary Results from Ultrahigh Vacuum and Cryogenic Dust Adhesion Experiments” Proceedings of the Annual Meeting of the Division of Planetary Scientists, American Astronomical Society, Pasadena, CA
  21.        Perko, H.A. (1999). “Solar Energy Conversion Using In Situ Lunar Regolith”, Proceedings of the Roundtable Discussion on Space Resources Utilization, Golden, CO.
  22.        Perko, H.A. (2009) “Status of Helical Piles in Building Codes” Guest Lecture, Colorado Association of Geotechnical Engineers, Denver, CO, March 2009
  23.        Perko, H.A. (2007) "Evidence of Seismic Resistance of Helical Foundations", Helical Foundations and Tiebacks Technology Seminar, Deep Foundation Institute, New Orleans, LA
  24.        Perko, H.A. (2006) "Geotechnical Techniques used in Planetary Exploration", Proceedings of Geo-volution, ASCE and AGU Joint Conference, Denver, CO.
  25.        Perko, H.A. (2006) "Installation Torque as a Predictor of Helical Pier Axial Capacity" Technical Article, HelicalPierWorld.com.
  26.       Perko, H.A. (2010) “Failures of Helical Piles and Helical Anchor Supported Structures and Associated Lessons Learned” Annual Conference, Structural Engineers Association of Kentucky, Louisville, KY
  27.       Perko, H.A. (2010) “Failures of Helical Piles and Helical Anchors and Associated Lessons Learned” Helical Foundations and Tie-Backs Seminar, Deep Foundation Institute, Las Vegas, Nevada
  28.       Perko, H.A. (2010) “Lateral Capacity and Redundant Design of Helical Piles” Helical Foundations and Tie-Backs Seminar, Deep Foundation Institute, Las Vegas, Nevada
  29.       Perko, H.A. (2009) “State of Practice Regarding Helical Piles” Annual Conference, Structural Engineers Association of Kentucky, Lexington, KY
  30.       Perko, H.A. (2009) “History, Design and Applications of Helical Piles and Steel Push Piers” Quarterly Meeting, Structural Engineers Association of Tennessee, Mid-Section, Nashville, TN
  31.       Perko, H.A. (2009) “State of Practice Regarding Helical Piles” Helical Foundations and Tie-Backs Specialty Seminar, Deep Foundation Institute, University of Alberta, AB, Canada
  32.        Perko, H.A. (2008) “Status of Helical Piles in Building Codes” Helical Foundations and Tie-Backs Specialty Seminar, Deep Foundation Institute, Las Angeles, CA
  33.        Perko, H. A. (2008) “Helical Foundation for Alexan Broadway Parking Structure” Case Histories in Deep Foundations Seminar, Deep Foundations Institute, Cincinnati, Ohio
  34.        Perko, H.A. (2008) “Innovative High-Production Methods for Driven H-Piles and Monotubes” Deep Foundations Magazine, Spring Issue, DFI, New Jersey
  35.        Perko, H.A., Dwyer, B.B., and Bonekemper, W. (2007) "Lateral Resistance of Helical Foundations for Hurricane Prone Coastal Area", Helical Foundations and Tiebacks Technology Seminar, Deep Foundation Institute, New Orleans, LA
  36.        ICC-Evaluation Services (2007) AC358 Acceptance Criteria for Helical Foundation Systems and Devices, Howard A. Perko, Prime Consultant and Originating Author
  37.        Perko, H.A. (2005) HeliPost Engineering Handbook, Secure Piers, LLC, Fort Collins, CO
  38.        Perko, H.A. (2004) “Introduction to Corrosion and Galvanizing of Helix Foundations” Helical Foundations and Tiebacks Technology Seminar, Deep Foundation Institute, Tampa, FL.
  39.        Perko, H.A. (2004) “Mars Soil Mechanics Investigation” Final Technical Report, NASA OSS Proposal No. NRA-00-01-MDAP-059, NASA Contract NAG5-11280 Supp 1.
  40.        Perko, H.A. (2003) “Lateral Capacity and Buckling Resistance of Helix Pier Foundations” Helical Foundations and Tiebacks Technology Seminar, Deep Foundation Institute, Cincinnati, OH.
  41.        Perko, H.A. and Rupiper, S.J. (2000) Basic Helix Foundation Engineering, Ingal-Precision Foundations, Inc., Larkspur, CO
  42.        Perko, H.A. (1999) “Summary of Earth Retaining Methods Utilizing Helical Anchors”, Magnum Helix Foundation Tech. Ref. Manual, Magnum Piering, Inc., Cincinnati, OH
  43.        Perko, H. A. (1996).  “Predicting Remaining Heave and the Time Rate of Heave by the Hyperbolic Method”, Colorado State University Technical Report, Fort Collins, CO.

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