Conference Papers

  • Gong, W., Zekkos, D., Clark, M. (2022). Influence of seismic displacement models on landslide prediction at the Egkremnoi coastline during the 2015 Lefkada earthquake. 4th International. Conference on Performance-based Design in Earthquake. Geotechnical Engineering (PBD-IV), July 15-17 2022, Beijing, China.
  • Zekkos, D., Champagne, C.L., Lynch, J., Manousakis, J., Athanasopoulos-Zekkos, A. (2022). UAV-enabled Coupled Infrared and Optical Characterization of the May 19 2020 Edenville Dam Failure in Michigan, Geocongress 2022.
  • Pradel, D., Lobbestael, A., Brooks, C. N., Dobson, R., Marion, N., Oommen, T. Esser, A. J., Athanasopoulos-Zekkos, A. Zekkos, D., Clark, M., Townsend, K., Niemi, N. Midttun, N., and Hille, M. (2021). The May 19, 2020, Failure of Edenville Dam near Midland, Michigan. Geo-Extreme 2021 : Case Histories and Best Practices. 2021
  • Gong, W., Zekkos, D., Clark, M., Kirschbaum, D. (2021).”Newmark-Type Pseudo-Three-Dimensional Back-Analysis of Co-Seismic Landslides in Egkremnoi, Lefkada, Greece” Geo-Extreme 2021 : Climatic Extremes and Earthquake Modeling . 2021
  • Zekkos, D., Datta, S., Fei, X. (2021). Coupled process modeling for energy generation from municipal solid waste degradation: Laboratory-scale and field-scale simulations, 3rd International Symposium on Coupled Phenomena in Environmental Geotechnics, 20-21 October 2021, Kyoto, Japan (keynote lecture).
  • Gong, W., Zekkos, D., Clark, M., Manousakis, J., and Kirshbaum, D., Regional 3D Stability Analyses of the Egkremnoi Coastline and Comparison with Landslides Caused by the 2015 Lefkada Earthquake, International Foundations Congress and Equipment Expo 2021, Dallas, TX, May 10-14 2021.
  • Champagne, C. L., Zekkos, D., Lynch, J. P., and O’Loughlin, S. (2020) “Waste Settlement Measurements using Unmanned Aerial Vehicles at a Municipal Solid Waste Landfill in Michigan”, Geo-Congress 2020 : Geo-Systems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics.
  • Draughon, G. T., Lynch, J. P., Zekkos, D., & O’Laughlin, S. (2019). Development of an autonomous flux chamber for continuous methane measurements at MSW landfills. Sardinia 2019.
  • Kallimogiannis, V., Saroglou, H., Zekkos, D., and Manousakis, J. (2019) “2D and 3D Back-analysis of a landslide in Egremnoi caused by the November 17 2015Lefkada earthquake.” 2nd International Conference on Natural Hazards and Infrastructure, 23-26 June 2019, Chania, Greece.
  • Zekkos, D., Tsavalas-Hardy, A., Mandilaras, G., and Tsantilas, K. (2019) “Using social media to assess earthquake impact on people and infrastructure: Examples from earthquakes in 2018.” 2nd International Conference on Natural Hazards and Infrastructure, 23-26 June 2019, Chania, Greece.
  • Saroglou, H., Kalimogiannis, V., Bar, N., Manousakis, J., and Zekkos, D. (2019) “Analysis of slope instabilities in the Corinth Canal using UAV-enabled mapping” 2nd International Conference on Natural Hazards and Infrastructure, 23-26 June 2019, Chania, Greece.
  • Basham, M., Athanasopoulos-Zekkos, A., Zekkos, D. (2019) “The importance of vertical displacement control during constant volume cyclic simple shear testing, 7th International Conference on Earthquake Geotechnical Engineering, Rome, Italy, June 17-20 2019.
  • Athanasopoulos-Zekkos, A., Zekkos, D., Rollins, K., Hubler, J., Higbee, J. and Platis, A. (2019) “Earthquake Performance and Characterization of Gravel-Size Earthfills in the Ports of Cephalonia, Greece, following the 2014 Earthquakes”, 7th International Conference on Earthquake Geotechnical Engineering, June 17-20 2019.
  • Admassu, K. A., Lynch, J. P., Athanasopoulos-Zekkos, A., Zekkos, D. (2019). Long-term Wireless Monitoring Solution for the Risk Management of Highway Retaining Walls, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, March 2019.
  • Zhou, H., Lynch, J., Zekkos, D. (2019). Vision-based Precision Localization of UAVs for Sensor Payload Placement and Pickup for Field Monitoring Applications, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, March 2019.DOI: 10.1117/12.2516049
  • Fei, X., & Zekkos, D. (2018). Cyclic Simple Shear Testing of Degraded Municipal Solid Waste from California Under Constant Volume and Constant Load Conditions. In 8th International Congress on Environmental Geotechnics (pp. 35-42). 28 October – 1 November 2018, Springer, Singapore.
  • Datta, S., and Zekkos, D. (2018). “Waste Composition Dependent Landfill Gas Generation Parameters for Large-Size Laboratory Degradation Experiments” 8th International Congress on Environmental Geotechnics, Hangzhou, China, 28 October – 1 November 2018, Springer, Singapore
  • Zekkos, D., Clark, M., Willis, M., Athanasopoulos-Zekkos, A., Manousakis, J., Knoper, L., Stahl, T., Massey, C., Archibald, G., Greenwood, W., and Medwedeff, W. (2018a). 3D models of the Leader Valley using satellite & UAV imagery following the 2016 Kaikoura earthquake, Eleventh U.S. National Conference on Earthquake Engineering, Integrating Science, Engineering & Policy, June 25-29, 2018, Los Angeles, California.
  • Zekkos, D., Manousakis, J., Athanasopoulos-Zekkos, A., Clark, M., Knoper, L., Massey, C., Archibald, G., Greenwood, W., Hemphill-Haley, M., Rathje, E., Litchfield, N., Medwedeff, W., Van Dissen, R.J., Ries, W., Villamor, P., Langridge, R.M., and Kearse, J. (2018b). Structure-from-Motion based 3D mapping of landslides & fault rupture sites during 2016 Kaikoura earthquake reconnaissance, Eleventh U.S. National Conference on Earthquake Engineering, Integrating Science, Engineering & Policy, June 25-29, 2018, Los Angeles, California.
  • Greenwood, W.,Zhou, H., Zekkos, D., Lynch, J. (2018). “Experiments using a UAV-Deployed Impulsive Source for Multichannel Analysis of Surface Waves Testing.” Geotechnical Earthquake Engineering and Soil Dynamics V, June 10-13 2018, Austin, TX.
  • Matasovic, N., Zekkos, D., Sahadewa, A., Carlson, C. P., (2018). “In-Situ Testing for Evaluation of Modulus and Damping of Solid Waste at a Hazardous Waste Landfill.” Geotechnical Earthquake Engineering and Soil Dynamics V, June 10-13 2018, Austin, TX.
  • Carlson, C., Zekkos, D. (2018). “Impact of Ground Motion Modification on Results of Newmark-type Displacement Analyses.” Geotechnical Earthquake Engineering and Soil Dynamics V, June 10-13 2018, Austin, TX.
  • Hubler, J.F., Athanasopoulos-Zekkos, A. and Zekkos, D. (2018). “Post-Liquefaction Volumetric Strain of Gravel-Sand Mixtures in Constant Volume Simple Shear.” Geotechnical Earthquake Engineering and Soil Dynamics V, June 10-13 2018, Austin, TX.
  • Hubler, J.F., Athanasopoulos-Zekkos, A. and Zekkos, D. (2018) “Evaluation of Post-Liquefaction Shear Strength and Shear Wave Velocity of Uniform Gravels.” International Foundations Congress and Equipment Expo, Orlando, March 5-10, 2018.
  • Greenwood, W., Zekkos, D., Lynch, J., Clark, M. (2017). Data Fusion of Digital Imagery and Seismic Surface Waves for a Rock Road Cut in Hawaii. 3rd International Conference on Performance-based Design in Earthquake Geotechnical Engineering, July 16-19 2017, Vancouver.
  • Hubler, J., Athanasopoulos-Zekkos, A., and Zekkos, D. (2017) “Pore Pressure Generation of Pea Gravel, Sand, and Gravel-Sand Mixtures in Constant Volume Simple Shear”, 3rd International Conference on Performance-Based Design for Earthquake Geotechnical Engineering, Vancouver, BC, Canada, July 17-19, 2017.
  • Hubler, J.F., Athanasopoulos-Zekkos, A. and Zekkos, D. (2018) “Evaluation of Post-Liquefaction Shear Strength and Shear Wave Velocity of Uniform Gravels.” International Foundations Congress and Equipment Expo, Orlando, March 5-10, 2018.
  • Datta, S., Zekkos, D., Fei, X., McDougall, J. (2017). Experimental Assessment and Modelling of Coupled Biochemical-Physical-Mechanical Biodegradation Process of a Municipal Solid Waste Sample from Michigan, September 2017. Second International Symposium on Coupled Phenomena in Environmental Geotechnics, Leeds, United Kingdom.
  • Datta S.,Fei X., Zekkos, D. (2017) Large-Scale Experimental Assessment of the Effect of Degradation on Shear Strength of Municipal Solid Waste from a Texas Landfill. In: Sivakumar Babu G., Reddy K., De A., Datta M. (eds) Geoenvironmental Practices and Sustainability. Developments in Geotechnical Engineering. Springer, Singapore
  • Zekkos, D., Clark, M., Cowell, K., Medwedeff, W., Manousakis, J, Saroglou, H., Tsiambaos, G. (2017) Satellite and UAV-enabled mapping of landslides caused by the November 17th 2015 Mw 6.5 Lefkada earthquake, 19th International Conference on Soil Mechanics and Geotechnical Engineering, 17-22 September 2017, Seoul, South Korea.
  • Saroglou, C., Asteriou, P.,Tsiambaos, G., Zekkos, D., Clark, M. (2017). Investigation of two co‐seismic rockfalls during the 2015 Lefkada and 2014 Cephalonia Earthquakes in Greece, 3rd North American Symposium on Landslides, June 4-8 2017, Roanoke, Virginia, USA, 521-528.
  • Matasovic, N., & Zekkos, D. (2017). Modulus Reduction and Damping Curves for Landfill Covers. In Geotechnical Frontiers 2017, 101-108.
  • Manousakis, J., Zekkos, D., Saroglou, F., and Clark, M. (2016). Comparison of UAV-enabled photogrammetry-based 3D point clouds and interpolated DSMs of sloping terrain for rockfall hazard analysis, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W2, 71-77, doi:10.5194/isprs-archives-XLII-2-W2-71-2016, 2016.
  • Zekkos, D., Manousakis, J., Greenwood, W., and Lynch, J. D. (2016). “Immediate UAV-enabled infrastructure reconnaissance following recent natural disasters: Case Histories from Greece.” 1st International Conference on Natural Hazards and Infrastructure, 28-30 June 2016, Chania, Greece.
  • Greenwood, W., Zhou, H., Lynch, J. P., and Zekkos, D. (2016). “UAV-Deployed Impulsive Source Localization with Sensor Network,” 5th International Conference on Smart and Multifunctional Materials, Structures and Systems (CIMTEC 2016), Perugia, Italy. (Invited Presentation)
  • Zhou, H., Hirose, M., Greenwood, W., Xiao, Y., Lynch, J., Zekkos, D., Kamat, V. (2016) “Demonstration of UAV deployment and control of mobile wireless sensing networks for modal analysis of structures “, Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98031X (April 20, 2016); doi:10.1117/12.2223441; https://dx.doi.org/10.1117/12.2223441
  • Fei, X. and Zekkos, D. (2016) The Influence of Waste Composition on the Physico-Biochemical-Hydraulic Characteristics of the Degradation Process of Municipal Solid Waste. Geo-Chicago 2016: pp. 297-306. doi: 10.1061/9780784480144.029
  • Bateman, J., Zekkos, D., Olson, E., Messenger, S., Kershaw, C., Fei, X., and Lynch, J. (2016) Preliminary Observations from Robot-Enabled Surface Methane Concentration Monitoring at a MSW Landfill. Geo-Chicago 2016: pp. 740-749. doi: 10.1061/9780784480168.072
  • Michalowski, R. and Zekkos, D. (2016) Limit Analysis of the Reinforced Soil and Modeling Strength of Solid Waste in Landfills Using the Concepts of Soil Reinforcement. Geosynthetics, Forging a Path to Bona Fide Engineering Materials: pp. 106-115. doi: 10.1061/9780784480182.010
  • Greenwood, W., Zekkos, D., Lynch J., and Bateman, J., Clark, M., and Chamlagain, D., 2016.“UAV-Based 3-D Characterization of Rock Masses and Rock Slides in Nepal.” 50th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, Houston, TX, 26-29 June 2016.
  • Hirose, M., Xiao, Y.,Zuo, Z., Kamat, V. R., Zekkos, D. and Lynch, J. (2015). “Implementation of UAV Localization Methods for a Mobile Post-Earthquake Monitoring System.” Environmental, Energy and Structural Monitoring Systems, July 9-10, 2015, Trento, Italy.
  • Nikolaou, S., Zekkos, D., Assimaki, D. Gilsanz, R. and Deming, P. W. (2015). “Reconnaissance Highlights of the 2014 Sequence of Earthquakes in Cephalonia, Greece.” 6th International Conference on Earthquake Geotechnical Engineering (6ICEGE), Christchurch, New Zealand, 2-4 November 2015.
  • Fei, X., Zekkos, D. (2015). “Large-size controlled degradation and simple shear testing of municipal solid waste from Michigan”, XVI European Conference on Soil Mechanics and Geotechnical Engineering, 13-17 September 2015, Edinburg.
  • Greenwood, W., and Zekkos, D. (2015). “Opening the Classroom to the Civil Engineering Profession through Web-based Class Projects: Assessment of Student Learning.” 122nd American Society for Engineering Education (ASEE) Annual Conference & Exposition, Seattle, WA, June 14-17 2015.
  • Tsitsas, G., Dimitriadi, V., Zekkos, D., Dumitru, M., Ciortan, R., Manea, S.(2015).“Dynamic Compaction of Collapsible Soils – Case Study from a Motorway Project in Romania.” XVI European Conference on Soil Mechanics and Geotechnical Engineering, Edinburgh, 13-17 September 2017.
  • Zekkos, D. Athanasopoulos-Zekkos, A., Grizi, A. and Greenwood, W. (2014). “The Railroad Embankment Failure of the City of Ann Arbor, Michigan, Case History As a Means for Teaching Geotechnical Engineering,” 7th Hellenic Conference in Geotechnical Engineering, Athens, 5-7 November 2014.
  • Zekkos, D. and Tsantilas, K. (2014). A New Web-Based Outreach Platform for Classroom Projects: An Application Example in Geoenvironmental Remediation, Information Technology in Geo-Engineering , D.G. Toll et al. (Eds.), IOS Press, 2014, 229-234.
  • Sahadewa, A., Zekkos, D., Fei, X.,Li, J.*, Zhao, X. (2014). “Recurring Shear Wave Velocity Measurements at Smith’s Creek Bioreactor Landfill,” Geocongress 2014, Atlanta, Georgia, February 23-26 2014, 2072-2081.
  • Zekkos, D. and Lynch, J., Sahadewa, A., Hiroshi, M. (2014). “Proof-of-Concept Shear Wave Velocity Measurements Using an Unmanned Autonomous Aerial Vehicle,” Geocongress 2014, Atlanta, Georgia, February 23-26 2014, 953-962.
  • Fei,, X., Zekkos D. and Raskin. L. (2014). “Impact of composition of municipal solid waste on methane generation rate and volume in laboratory batch and simulator tests.” GeoShanghai 2014, ASCE. Shanghai, China, May 26-28, 2014. GSP 241: 100-109.
  • Zekkos, D., Sahadewa A., Woods, R. D., Stokoe, K., II. Matasovic, N. (2013). “In Situ Assessment of the Nonlinear Shear Modulus of Municipal Solid Waste.” Proc., 18th International Conference on Soil Mechanics and Geotechnical Engineering, September 2-6, 2013, Paris, France, 1663-1666.
  • Athanasopoulos, G. A., Zekkos, D., Vlachakis, V., Spiliotopoulos, G. (2013). “The December 29th 2010Xerolakka Municipal Solid Waste Landfill Failure.” Proc., 18th International Conference on Soil Mechanics and Geotechnical Engineering, September 2-6, 2013, Paris, France, 309-312.
  • Zekkos, D. (2013). “Experimental Evidence of Anisotropy in Municipal Solid Waste.” Proc., Symposium on Coupled Phenomena in Environmental Geotechnics, Politecnico di Torino, Torino, Italy, July 1-3, 2013, 69-79.
  • Fei, X., Zekkos. D., Raskin, L. (2013). “A Laboratory Landfill Simulator for Physical, Geotechnical, Chemical, and Microbial Characterization of Solid Waste Biodegradation Processes.” Proc., Symposium on Coupled Phenomena in Environmental Geotechnics, Politecnico di Torino, Torino, Italy, July 1-3, 2013, 321-328.
  • Zekkos, D., Matasovic, N., Vellone, D. (2013). “Case Histories of Geological, Rock and Mining Engineering, Underground Structures and Excavations – General Report, for Session 5.” Proc., Seventh International Conference on Case Histories in Geotechnical Engineering, April 29-May 4, 2013, Chicago, IL.
  • Ohm, H.-S., Sahadewa, A., Hryciw, R. D., Zekkos, D. Brant, N. (2012). “Sustainable Soil Particle Size Characterization through Image Analysis.” Proc., 17th Great Lakes Geotechnical and Geoenvironmental Conference, May 24, 2012, Cleveland, OH, 26-33.
  • Sahadewa, A., Zekkos, D., Woods R. D. (2012). “Observations from the Implementation of a Combined Active and Passive Surface Wave-Based Methodology.” Proc., Geocongress 2012: State of the Art and Practice in Geotechnical Engineering Conference, March 25-29, 2012, Oakland, CA, Hryciw, R., Athanasopoulos-Zekkos, A., and Yesiller, N. eds., ASCE Geotechnical Special Publication No. 225, 2786-2795.
  • Fei, X., and Zekkos, D. (2012). “Settlement Due to Anaerobic Biodegradation from Laboratory Landfill Simulators.” Proc., Geocongress 2012: State of the Art and Practice in Geotechnical Engineering Conference, March 25-29, 2012, Oakland, CA, Hryciw, R., Athanasopoulos-Zekkos, A., and Yesiller, N. eds., ASCE Geotechnical Special Publication No. 225, 2786-2795.
  • Kayen, R.E., Ishihara, K., Stewart, J.P., Tokimatsu, K., Cox, B.R., Tanaka, Y., Kokusho, T., Mason, H.B., Moss, R.E.S, Zekkos, D., Wood, C.M., Katsumata, K., Estevez, I.A., Cullenward, S.S., Tanaka, H., Harder, L.F., Kelson, K.I., Kishida, T. (2012). “Geotechnical Deformations at Ground Failure Sites from the March 11, 2011 Great Tohoku Earthquake, Japan: Field Mapping, LiDAR Modeling, and Surface Wave Investigation.” Proc., 9th International Conference on Urban Earthquake Engineering/4th Asia Conference on Earthquake Engineering, March 6-8, 2012, Tokyo, Japan.
  • Maugeri, M., Zekkos, D., Castelli, F. (2011). “Seismic Performance of Landfills.” Proc., European Technical Committee (ERTC-12) Workshop on Evaluation of Eurocode 8, XV European Conference on Soil Mechanics & Geotechnical Engineering, September 11, 2011, Athens, Greece.
  • Sahadewa, A., Zekkos, D., Lobbestael, A., Woods, R. D. (2011). “Shear Wave Velocity of Municipal Solid Waste in Michigan Landfills.” Proc., 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering and 64th Canadian Geotechnical Conference, Geo-Innovation Addressing Global Challenges, October 2-6, 2011, Toronto, Canada.
  • Zekkos, D., Carlson, C. (2011). “Scaling vs. Modification of Ground Motions and Impact on Seismic Analyses of a MSW Landfill.” Proc., 5th International Conference on Earthquake Geotechnical Engineering, January 10-13, 2011, Santiago, Chile.
  • Zekkos, D., and Flanagan, M. (2011). “Case Histories-Based Evaluation of the Deep Dynamic Compaction Technique on Municipal Solid Waste Sites.” Proc., Geocongress 2011, March 13-16, 2011, Dallas, TX.
  • Bray, J. and Zekkos, D. (2011). “Research Needs in Solid Waste Mechanics.” Proc., Geotechnical Characterization, Field Measurement, and Laboratory Testing of Municipal Solid Waste, International Symposium on Waste Mechanics 2008, March 13, 2008, New Orleans, LA, 228-234.
  • Zekkos, D., Flanagan, M. (2010). “Effectiveness of the Deep Dynamic Compaction Technique on Municipal Solid Waste Landfills.” Proc., 6th Hellenic Geotechnical and Geoenvironmental Engineering Conference, September 27-30, 2010, Volos, Greece.
  • Guisbert, S., Zekkos, D., and Nisar, A., (2010). “Time vs. Frequency Domain Ground Motion Modification: Effects on Site Response Analyses and Seismic Displacements.” Proc., Ninth U.S. National and Tenth Canadian Conference on Earthquake Engineering, July 25-29, 2010, Toronto, Canada, paper #1115.
  • Zekkos, D., Boominathan, A., Athanasopoulos-Zekkos, A. (2010). “Engineering Seismology, Ground Motions, & Local Site Effects: General Report on Session 3.” Proc., 5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, May 24-29, 2010, San Diego, CA.
  • Zekkos, D. (2010). “Geoengineering and Refereed Journals: A Survey.” Proc., Geo-Florida 2010: Advances in Analysis, Modeling & Design, ASCE GSP No. 199, February 20-24, 2012, Orlando, FL, 3285-3294.
  • Zekkos, D., Guisinger, A. L., Medley, E., Vellone, D. A. (2008). “Geological, Rock and Mining Engineering, Including Underground Structures and Excavations, and Subsidence of Deltas.” General Report on Sessions 6a and 6b, 6th International Conference on Case Histories in Geotechnical Engineering, August 11-16, 2007, Arlington, VA.
  • Zekkos, D., Cohen-Waeber, J., Medley, E., Jesionek, K. (2008). “Characterization of Weak Rock Mass and Geoengineering Analyses for a Canyon Landfill in Northern California.” 6th International Conference on Case Histories in Geotechnical Engineering, August 11-16, 2007, Arlington, VA, Paper #6.05a.
  • Athanasopoulos-Zekkos A., Zekkos D. and Matasovic N. (2008). “Validation of Generic Municipal Solid Waste Material Properties for Seismic Design of Landfills.” Proc., 4th Geotechnical Earthquake Engineering and Soil Dynamics Conference, May 18-22, 2008, Sacramento, CA.
  • Athanasopoulos, G., Grizi, A., Zekkos, D., Founta P., Zisimatou, E. (2008). “Municipal Solid Waste as a Reinforced Soil: Investigation Using Synthetic Waste.” Proc., Geocongress 2008, The Challenge of Sustainability in the Geoenvironment – Geotechnics of Waste Management and Remediation, March 9-12, 2008, New Orleans, LA, ASCE, Geotechnical Special Publication (GSP) #177, 168-175.
  • Zekkos, D., Bray, J. D., Stokoe, K., Kavazanjian, E., Rathje, E., Athanasopoulos, G. A., Riemer, M., Matasovic, N., Lee, J. J., Seos, B. (2008). “Recent Findings on the Static and Dynamic Properties of Municipal Solid Waste.” Proc., Geocongress 2008, The challenge of sustainability in the geoenvironment – Geotechnics of Waste Management and Remediation, March 9-12 2008, New Orleans, LA, ASCE, Geotechnical Special Publication (GSP) #177, 176-183.
  • Zekkos, D., Bray, J.D., Riemer, M., Kavazanjian, E., Athanasopoulos, G.A. (2007). “Response of Municipal Solid Waste from Tri-Cities Landfill in Triaxial Compression.” Proc., 11th International Waste Management and Landfill Symposium, Sardinia 2007, S. Margherita di Pula, Sardinia, Italy, October 1-5, 2007.
  • Zekkos, D., Bray J. D., Athanasopoulos, G.A., Riemer, M. F., Kavazanjian, E., Founta, X., Grizi, A. (2007). “Compositional and Loading Rate Effects on the Shear Strength of Municipal Solid Waste.” Proc., 4th International Conference on Earthquake Geotechnical Engineering, June 25-28, 2007, Thessaloniki, Greece, paper no. 1525.
  • Medley, E., Zekkos, D., (2007). “Seismic Performance of Rock Block Structures With Observations From the October 2006 Hawaii Earthquake.” Proc., 4th International Conference on Earthquake Geotechnical Engineering, June 25-28, 2007, Thessaloniki, Greece.
  • Zekkos, D., Athanasopoulos, G., Athanasopoulos, A. Manousakis, J. (2006). “Elements of Engineering Geology and Geotechnical Engineering in the Homeric Poems.” Proc., International Symposium on Science and Technology in Homeric Epics, August 27-30, 2006, Ancient Olympia, Greece.
  • Zekkos, D. P. (2006). “Surface Excavations, Fills and Embankments in Ancient Greece.” Proc. 5th Hellenic Conference in Geotechnical & Geoenvironmental Engineering, May 30-June 1, 2006, Xanthe, Greece, Technical Chamber of Greece and the Hellenic Society of Soil Mechanics and Foundation Engineering, 1, 521-528 (in Greek).
  • Zekkos, D. P., Bray, J. D., Riemer, M., (2006). “Laboratory Investigation of MSW Dynamic Properties.” Proc., 5th Hellenic Conference in Geotechnical & Geoenvironmental Engineering, May 30-June 1, 2006, Xanthe, Greece, Technical Chamber of Greece and the Hellenic Society of Soil Mechanics and Foundation Engineering, 1, 513-520 (in Greek).
  • Theodoratos, A., Georgiopoulos, D., Zekkos, D. P., Athanasopoulos, G. A., Bray, J. D., Riemer, M. (2006). “Laboratory Investigation of MSW Shear Strength from Large Direct Shear Tests.” Proc 5th Hellenic Conference in Geotechnical & Geoenvironmental Engineering, May 30 – June 1, 2006, Xanthe, Greece, Technical Chamber of Greece and the Hellenic Society of Soil Mechanics and Foundation Engineering, 1, 537-544 (in Greek).
  • Zekkos, D. P., Bray, J. D., Riemer, M. F. (2006). “Shear Modulus Reduction and Material Damping Relationships for Municipal Solid-Waste.” Proc., 8th U.S. National Conference on Earthquake Engineering, April 18-22, 2006, San Francisco, CA, Paper No. 1324.
  • Zekkos, D., Manousakis, J., Athanasopoulos, A. (2005). “Geotechnical Engineering Practice in the Mycenaean Civilization (1600-1100 BC).” Proc., 2nd International Conference on Ancient Greek Technology, October 17-21, 2005, Athens, Greece.
  • Zekkos, D. P., Bray, J. D., Kavazanjian, E., Riemer, M., Matasovic, N., Stokoe K.H., Rathje, E. (2005). “A Framework for Developing the Unit Weight Profile of Municipal Solid Waste.” Proc., 10th International Waste Management and Landfill Symposium, Sardinia 2005, October 3-7, 2005, S. Margherita di Pula, Sardinia, Italy. .
  • Zekkos, D.P., Bray, J.D., Der Kiureghian, A. (2004). “Reliability of Shallow Foundation Design using the Standard Penetration Test.” Proc., 2nd International Conference on Site Characterization, September 19-22, 2004, Porto, Portugal, 2, 1575-1582.
  • Zekkos, D.P., Athanasopoulos, A.G., Athanasopoulos, G.A. (2004). “Deep Supported Excavation in Difficult Ground Conditions in the City of Patras, Greece – Measured vs. Predicted Behavior.” Proc., 5th International Conference on Case Histories in Geotechnical Engineering, April 13-17, 2004, New York, NY
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