Mr. Konstantakos is the CEO and founder of Deep Excavation LLC, and also serves as the chair of the Earth Retaining Structures Committee of ASCE/G-I. He is managing the company operations and holds a Masters of Science degree from Massachusetts Institute of Technology and a Bachelor of Science from University of Massachusetts in Lowell. Mr. Konstantakos has considerable international involvement and experience. His areas of specialization are deep excavations, soil-structure interaction, slope stability, helical piles, and software development with relative publications.
Mr. Konstantakos has applied his passion for deep excavation design and has been the master developer of the international software program DeepEX dedicated to the subject. The DeepEX software is currently used by more than 1200 engineers and contractors worldwide and embodies a wide range of standards and specifications. He holds professional licenses in New York and in Europe.
Mr. Konstantakos has worked on many important international projects for slope stability, pile foundations, and braced excavations, including the World Trade Center recovery efforts in 2001. Beyond promoting the DeepEX software, Mr. Konstantakos has enriched the www.deepexcavation.com website (which he developed from 2000) essentially creating an online library for deep excavations and helping fellow engineers and contractors address related issues.
He is a vocal advocate of issues that face the geotechnical engineering community and tries to raise awareness of the important role that geotechnical engineers play.
University of Massachusetts Lowell98
Bachelors of Science, Civil and Environmental Engineering
Massachusetts Institute of Technology00
Master of Science, Civil and Environmental Engineering
List of main publications:
“The future of earth retaining structure construction, design, and practice.”, D. Konstantakos, ASCE, GI-SEI geostructures conference, Phoenix, AZ, February 2016.
“Apparent earth pressures below the lowest support level”, D. Konstantakos, IFCEE 2015, Joint ADSC/DFI/ASCE- GI conference, San Antonio, TX, March 2015.
"Settlement based performance of helical piles", D. Konstantakos, M. Perlow, DFI Helical Piles and Tiebacks Seminar, St. Charles, MO, April 4, 2014.
"Geotechnical activity index": Mr. Konstantakos compiles and publishes the monthly geotechnical activity index for all USA states. The index is published at the following address: www.deepexcavation.com/en/geotechnical-activity- index
"Evaluation of Eurocode 7 and AASHTO load factor and resistance design methods for benchmarked braced excavations", South Korean Engineering Conference, Seoul, Korea, March 2013.
''Evaluation of AASHTO load and resistance design methods for benchmarked braced excavations", ASCE Conf. Proc, ASCE geocongress conference 3, Oakland, CA, March 25-29, 2012.
''Advantages and limitations of ultimate limit state design methods for braced excavations'', ASCE Conf. Proc. doi:10.1061/41128(384)82, Earth Retention Conference 3, Bellevue, Seattle, WA, August 1-4, 2010.
''Finite element analyses and cofferdam excavations'', Deep Marine Foundations - A Perspective on the Design and Construction of Deep Marine Foundations, (DFI), article #1651; publication #88 (MRNE-2009).
''Online database of deep excavation performance and prediction'', 6th International Conference on Case Histories in Geotechnical Engineering, Arlington, VA, August 11-16, 2008.
“One Bryant Park – Creating the Underground Manhattan Schist Arc De Triumph”, May 2005, ASCE Seminar in Underground Construction in Urban Environments, New York, NY, May 11-12, 2005.
“Control of ground movements for a multi-level-anchored diaphragm wall during excavation”, Paper 5.68, 5th International Conference on Case Histories in Geotechnical Engineering in New York, NY, April 13-17 2004. Article also published as featured case study in the 17th newsletter by Plaxis BV, Netherlands.
DEVELOPED COMPUTER SOFTWARE PROGRAMS
DeepEX: Our flagship software program dedicated to the analysis and design of deep excavations. DeepEX is the most complete and modern available deep excavation package and utilizes both traditional and advanced finite element analysis methods.
HelixPile: A software program for the analysis and design of helical pile foundations. The program incorporates many of the latest recommendations and standards.
SiteMaster: A software program for processing and presenting slope inclinometer results. It has the ability to process inclinometer data from almost any manufacturer.
SnailPlus: A software program for the analysis and design of soil nail walls with FHWA and EC standards.
SteelBeam: A software program for the analysis and design of standard steel beams and columns according to AISC standards.
SteelConnect: A software program for the analysis and design of typical steel connections according to AISC standards.
Trench: Trench is a software program that analyzes the two dimensional and three dimensional stability of panels and trenches supported by bentonite slurry.
WickDrains: A software program for the evaluation of wickdrain assisted consolidation of compressible soil layers.
3Deep: A virtual reality software program for deep excavations and underground projects.
RC-Solver: A software program for the analysis and design of reinforced concrete members with EC2, EC8 standards.
Earth retention systems
Artificial inteligence in geotechnical engineering
Immersive geotechnical designs