Jafarian, Y.

Profile

Dr. Yaser Jafarian is currently a post-doctoral fellow at Delft University of Technology in the framework of the BLUE Piling project. The project deals with novel installation methods and corresponding effects on the behavior of super-size offshore monopiles for wind turbines. The research is conducted through implementation of advanced physical modeling. Yaser received his PhD degree from Iran University of Science and Technology in 2009 and has more than one decade of experience in research and teaching activities at the International Institute of Earthquake Engineering and Seismology (IIEES) as well as at Semnan University, Iran. He also was a visiting researcher at the University of Tokyo, Japan.

Yaser published over 50 scientific articles in high-ranked peer-reviewed journals in the field of geotechnical engineering, with over 900 citations in total. He has supervised several MSc and PhD students and was lecturer of several courses for undergraduate and graduate students such as "Advanced Soil Mechanics", "Soil Dynamics", “Soil Improvement”, and "Geotechnical Earthquake Engineering". Yaser’s research field involves multiple areas of geotechnical engineering including dynamic soil properties, soil liquefaction, and seismic displacement of earth slopes.

In recent years, he has focused on physical and numerical modeling of geo-structures subjected to large seismic ground deformations during landslide and liquefaction conditions. Yaser has been involved in the analysis and design of various routine and complicated industrial projects such as the analysis and design of port-related structures. He acted as Guest Editor of a number of special issues in the International Journal of Civil Engineering and has become an Associate Editor for this journal. He has received recognition as outstanding reviewer from several leading journals involving Soil Dynamics and Earthquake Engineering, Computers and Geotechnics, and International Journal of Geomechanics.

Research

As a researcher and also as a geotechnical engineer, Yaser worked on variety of geohazards from the geological viewpoint (in the absence of civil engineering structure) towards the effects of geohazards (like liquefaction or landslide) on the geo-structures. He is experienced in microzonation of geotechnical hazards in urban areas and also geotechnical site investigation. Summary of his research interests is outlined below:

  • Assessment of geohazards through analytical, numerical, and empirical methods
  • Earthquake hazard assessment and attenuation laws
  • Physical and numerical modeling of geotechnical structures
  • Liquefaction potential assessment and seismic performance of foundations in liquefiable ground
  • Landslide hazard assessment
  • Element cyclic and monotonic testing on soils and rocks
  • Database compiling, probabilistic and statistical analysis of geotechnical data
  • Machine learning in geotechnical problems

Academic

Practical

  • CEO, Intelligent Environmental Risks Analyzers (IERA), Science-Based Company (Ltd.), Tehran, Iran, 2016-2020
  • Project manager, Seismic microzonation of Sari city, International Institute of Earthquake Engineering and Seismology, 2016-2020  
  • Vice President, Armoon Geotechnical Consultant Engineers (AGCE), 2009 – 2013, Babol, Iran
  • Member, design team of several offshore projects constructed at Persian Gulf including: IRAN LNG Project, Shahid Rajaaei Port, Pars Petrochemical Port, LNG Port, SSB Port, 2006-2009
  • Professional Researcher, Research and Development Bureau, Soil Mechanics and Strength of Materials Laboratory, Ministry of Road and Transportation, 2005-2006
  • Professional Engineer, Renovation Organization, Tehran Municipality, 2003-2004
Journal papers
  1. Jafarian Y, Fallahzedeh M, Lee CJ, Haddad A, Hedayati J. (2021), "Centrifuge Modeling for Seismic Performance of Floating Piled Raft with and without Drainage Wells in Liquefiable Site", International Journal of Geomechanics 21 (5)

  2. Jafarian Y, Esmaeilpour P, Shojaeemehr S, Taghavizade H, Rouhi S, McCartney JS. (2021), “Impacts of Fixed-End and Flexible Boundary Conditions on Seismic Response of Shallow Foundations on Saturated Sand in 1-g Shaking Table Tests”, Geotechnical Testing Journal 44 (6)

  3. Lashgari A., Jafarian Y., Haddad A., (2020), "A Coupled Stick-Slip-Rotation Model for Earthquake-Induced Sliding Displacement of Slopes in Iran", Soil Dynamics and Earthquake Engineering, Soil Dynamics and Earthquake Engineering 135

  4. Jafarian Y., Zafarani H., Eskandarinejad A., Lashgari A. Soghrat M.R., Sharafi H. Afraz Haji-Saraei M. (2020), "Seismic hazard analysis and local site effect of the 2017 Mw 7.3 Sarpol-e Zahab, Iran, earthquake", Natural Hazards, Natural Hazards 103, 1783-1805, DOI: 10.1007/s11069-020-04054-0

  5. Ghadimi Garmjani S, Kardani Moghaddam A, Maleki P, Jafarian Y (2020), "Effect of non-liquefiable layer on bearing capacity and settlement of shallow foundations", International Journal of Physical Modelling in Geotechnics.

  6. Jafarian Y. and Javdanian H., (2020), "Small-strain dynamic properties of siliceous-carbonate sand under stress anisotropy", Soil Dynamics and Earthquake Engineering 131.

  7. Jafarian Y. and Javdanian H., (2020), "Dynamic properties of calcareous sand from the Persian gulf in comparison with siliceous sands database", International Journal of Civil Engineering 18 (2), PP 245-249

  8. Jafarian Y., Taghavizade H., Rouhi S., Shojaemehr S., Esmaeilpour P., (2020), "Shaking Table Experiments to Evaluate the Boundary Effects on Seismic Response of Saturated and Dry Sands in Level Ground Condition", International Journal of Civil Engineering.

  9. Shahnazari, H., Laloui, L., Kouzegaran, S. Jafarian, Y., (2020), "Prediction and experimental evaluation of soil-water retention behavior of skeletal calcareous soils", Bulletin of Engineering Geology and the Environment.

  10. Shahnazari, H., Laloui, L., Kouzegaran, S. Jafarian, Y., (2020), "The unsaturated shear strength of calcareous soil in comparison with silicate soil", Marine Georesources & Geotechnology.

  11. Jafarian Y., Lashgari A., Haddad A., (2019), "Predictive Model and Probabilistic Assessment of Sliding Displacement for Regional Scale Seismic Landslide Hazard Estimation in Iran", Bulletin of the Seismological Society of America (BSSA).

  12. Fallahzadeh M., Jafarian Y., Haddad A., (2019), "Seismic performance of end-bearing piled raft with retrofitting strategy against liquefaction using centrifuge model tests", Bulletin of Earthquake Engineering, DOI: 10.1007/s10518-019-00696-z

  13. Jafarian Y., Miraei M. (2019), "Scalar- and vector-valued fragility analyses of gravity quay wall on liquefiable soil: example of Kobe Port", International Journal of Geomechanics (ASCE), 2019, Volume 19, No. 5

  14. Jafarian Y., Javdanian H. (2019), "Dynamic Properties of Calcareous Sand from the Persian Gulf in Comparison with Siliceous Sands Database", International Journal of Civil Engineering, 2019.

  15. Salamatpoor S., Jafarian Y., Hajiannia A. (2019), "Bearing Capacity and Uneven Settlement of Consecutively Constructed Adjacent Footings Rested on Saturated Sand Using Model Tests", International Journal of Civil Engineering, 2019, Volume 17, No. 6, Pages 737–749

  16. Jafarian Y., Lashgari A., Miraei M., (2018), "Multivariate Fragility Functions for Seismic Landslide Hazard Assessment", Journal of Earthquake Engineering, doi.org/10.1080/13632469.2018.1528909

  17. Jafarian Y., Javdanian H., Haddad A., (2018), "Strain-dependent dynamic properties of Bushehr siliceous-carbonate sand: experimental and comparative study", Soil Dynamics and Earthquake Engineering 107, Pages 339-349

  18. Mehrzad B., Jafarian Y., Lee C. J., Haddad A. (2018),"Centrifuge study into the effect of liquefaction extent on permanent settlement and seismic response of shallow foundations", Soils and Foundations, Volume 58, Issue 1, February 2018, Pages 228-240

  19. Jafarian Y., Javdanian H., Haddad A., (2018), "Dynamic properties of calcareous and siliceous sands under isotropic and anisotropic stress conditions", Soils and Foundations, Volume 58, Issue 1, February 2018, Pages 172–184.

  20. Lashgari A., Jafarian Y., Haddad A., (2018), "Predictive model for seismic sliding displacement of slopes based on a coupled stick-slip-rotation approach", Engineering Geology, 244 (2018) 25–40

  21. Javdanian H., Jafarian Y., (2018), "Dynamic shear stiffness and damping ratio of marine calcareous and siliceous sands", Geo-Marine Letters, August 2018, Volume 38, Issue 4, pp 315–322

  22. Salamatpoor S., Jafarian Y., Hajiannia A. (2018), "Improving shallow foundations rested on saturated loose sand by a zeolite-cement mixture: a laboratory study", International Journal of Science and Technology (Scientia Iranica), 2018, Volume 25, Issue 4, Page 2063-2076  

  23. Salamatpoor S., Jafarian Y., Hajiannia A. (2018), "Physical and mechanical properties of sand stabilized by cement and natural zeolite", The European Physical Journal Plus, 2018, 133: 205

  24. Dejaloud H. Jafarian Y. (2017), "A Micromechanical-Based Constitutive Model for Fibrous Fine-Grained Composite Soils", International Journal of Plasticity, Volume 89, February 2017, Pages 150–172

  25. Jafarian Y., Lashgari A. (2017), "Seismic sliding analysis of sandy slopes subjected to pore water pressure buildup", International Journal of Geomechanics (ASCE), Vol. 17, Issue 11 (November 2017).

  26. Jafarian Y., Mehrzad B., Lee C. J., Haddad A. (2017),"Centrifuge modeling of seismic foundation-soil-foundation interaction on liquefiable sand", Soil Dynamics and Earthquake Engineering, Volume 97, June 2017, Pages 184-204

  27. Jafarian Y., Lashgari A. (2017), "Closure to “Simplified Procedure for Coupled Seismic Sliding Movement of Slopes Using Displacement-Based Critical Acceleration” by Yaser Jafarian and Ali Lashgari", International Journal of Geomechanics (ASCE), Volume 17, Issue 9 , September 2017

  28. Mirhaji V., Jafarian Y., Baziar M. H., Jafari M. K. (2017), "Seismic in-Soil Isolation of Solid Waste Landfill Using Geosynthetic Liners: Shaking Table Modeling of Tehran Landfill", International Journal of Civil Engineering, June 2017, doi:10.1007/s40999-017-0232-5

  29. Jafarian Y., Haddad A., Mehrzad B. (2017), "LOAD-SETTLEMENT MECHANISM OF SHALLOW FOUNDATIONS RESTED ON SATURATED SAND WITH UPWARD SEEPAGE", International Journal of Geomechanics (ASCE), Vol. 17, Issue 3 (March 2017).

  30. Jafarian Y., Lashgari A. (2016), “SIMPLIFIED PROCEDURE FOR COUPLED SEISMIC SLIDING MOVEMENT OF SLOPES USING DISPLACEMENT-BASED CRITICAL ACCELERATION”, International Journal of Geomechanics (ASCE), Aug 2016, Vol. 16, No. 4.

  31. Shahnazari, H., Jafarian, Y., Tutunchian, M., and Rezvani, R. (2016). "Undrained Cyclic and Monotonic Behavior of Hormuz Calcareous Sand Using Hollow Cylinder Simple Shear Tests" International Journal of Civil Engineering, June 2016, Volume 14, Issue 4, pp 209–219

  32. Shahnazari, H., Jafarian, Y., Tutunchian, M., and Rezvani, R. (2016). "PROBABILISTIC ASSESSMENT OF LIQUEFACTION OCCURRENCE IN CALCAREOUS FILL MATERIALS OF KAWAIHAE HARBOR, HAWAII" International Journal of Geomechanics (ASCE), Volume 16, Issue 6, December 2016

  33. Mehrzad B., Haddad A., Jafarian Y. (2016), "CENTRIFUGE AND NUMERICAL MODELS TO INVESTIGATE LIQUEFACTION-INDUCED RESPONSE OF SHALLOW FOUNDATIONS WITH DIFFERENT CONTACT PRESSURES", International Journal of Civil Engineering, March 2016, Volume 14, Issue 2, pp 117-131

  34. Jafarian Y., Vakili R., Sadeghi Abdollahi A., Baziar M.H. (2014), “Simplified Soil Liquefaction Assessment Based on Cumulative Kinetic Energy Density: Attenuation Law and Probabilistic Analysis”, International Journal of Geomechanics (ASCE), Vol. 14, No. 2, April 1, 2014.

  35. Jafarian Y., Ghorbani A., Ahmadi O., (2014), "Simplified dynamic analysis to evaluate liquefaction-induced lateral deformation of earth slopes: a computational fluid dynamics approach", Earthquake Engineering and Engineering Vibrations, September 2014, Volume 13, Issue 3, pp 555–568.

  36. Jafarian Y., Ghorbani A., Salamatpoor, S., Salamatpoor Si., (2013), "Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand", Journal of Zhejiang University Science A (Appl Phys & Eng) 2013 14(10):739-750.  

  37. Jafarian Y., Vakili R., Sadeghi Abdollahi A., (2013), "Prediction of cyclic resistance ratio for silty sands and its applications in the simplified liquefaction analysis", Computers and Geotechnics 52 (2013) 54–62.

  38. Jafarian Y., Towhata I., Baziar M.H., Noorzad A., and Bahmanpour A. (2012), "Strain energy based evaluation of liquefaction and residual pore water pressure in sands using cyclic torsional shear experiments", Soil Dynamics and Earthquake Engineering, 35 (2012) 13–28.

  39. Ghorbani A., Jafarian Y.,  Maghsoudi M. S., (2012), "Estimating shear wave velocity of soil deposits using polynomial neural networks: application to liquefaction", Computers & Geosciences, In Press, Accepted Manuscript, Mar 2012, 44 (2012) 86–94.

  40. Baziar M.H., Rezaei Pour H., Jafarian Y. (2012), "Decoupled Solution for Seismic Permanent Displacement of Earth Slopes Using Deformation-Dependent Yield Acceleration", Journal of Earthquake Engineering, 16:917–936, 2012.

  41. Jafarian Y., Sadeghi Abdollahi A., Vakili R., Baziar M.H., Noorzad A. (2011), "On the efficiency and predictability of strain energy for the evaluation of liquefaction potential: A numerical study", Computers and Geotechnics 38 (2011) 800–808.

  42. Baziar M. H., Jafarian Y., Shahnazari H., Movahed V., Tutunchian M. A. (2011), "Prediction of strain energy-based liquefaction resistance of sand–silt mixtures: An evolutionary approach", Computers & Geosciences, 37 (2011) 1883–1893.

  43. Jafarian Y., Baziar M.H., Rezania M., Javadi A.A. (2011), "Probabilistic evaluation of seismic liquefaction potential in field conditions; A kinetic energy approach", Engineering Computations: International Journal for Computer-Aided Engineering and Software Vol. 28 No. 6, pp. 675-700

  44. Jafarian Y., Sadeghi Abdollahi A., Vakili R., Baziar M. H. (2010), "Probabilistic correlation between laboratory and field liquefaction potentials using relative state parameter index (ξR)", Soil Dynamics and Earthquake Engineering, 30 (10), 1061-1072.

  45. Jafarian Y., Kermani E., and Baziar M. H. (2010), "Empirical predictive model for the vmax/amax ratio of strong ground motions using genetic programming", Computers & Geosciences, 36 (2010) 1523–1531.

  46. Jafarian Y., Alielahi H., Sadeghi Abdollahi A., Vakili R., (2010). "Seismic Numerical Simulation of Breakwater on a Liquefiable Layer: IRAN LNG Port", Electronic Journal of Geotechnical Engineering, Vol. 13.

  47. Kermani E., and Jafarian Y., Baziar M. H. (2009), "new predictive models for the vmax/amax ratio of strong ground motions using genetic programming", International Journal of Civil Engineering, 7 (4) 236–247.

  48. Vakili R., Sadeghi Abdollahi A., Jafarian Y., Baziar M. H., (2009). "Evaluating Conservatism of SPT-based Simplified Liquefaction Procedures using Laboratory and Field Evidences", Electronic Journal of Geotechnical Engineering, Vol. 14.

  49.  Baziar M. H. and Jafarian Y. (2007), "Assessment of Liquefaction Triggering Using Strain Energy Concept and ANN Model; Capacity Energy", Soil Dynamics and Earthquake Engineering, 27 (2007) 1056–1072.

Selected conference papers
  1. Jafarian Y., Miraei M., Lashgari A. and Shakeri P., "Probabilistic evaluation of dynamic response of caisson quay walls in soil improved by fiber: a numerical study", 8th European Conference on Numerical Methods in Geotechnical Engineering, Delft, The Netherlands, 18-20 June, 2014.
  2. Lashgari A. and Jafarian Y., "ROLE OF SLIDING BLOCK ROTATION ONEARTHQUAKE-INDUCED PERMANENT DISPLACEMENT OF EARTH SLOPES", COMPDYN 2013, 14th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, V. Papadopoulos, V. Plevris (eds.), Kos Island, Greece, 12–14 June 2013.
  3. Miraei M. and Jafarian Y., " FRAGILITY CURVES FOR ASSESSING THE SEISMIC VULNERABILITY OF GRAVITY QUAY WALLS", COMPDYN 2013, 14th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, V. Papadopoulos, V. Plevris (eds.), Kos Island, Greece, 12–14 June 2013.
  4. Jafarian Y., Ghorbani A., Ahmadi O., "Evaluating liquefaction-induced lateral deformaton of earth slopes using computational fluid dynamics (cfd)", 15th World Conference on Earthquake Engineering (WCEE), Lisbon, 2012.
  5. Jafarian Y., Ghorbani A., Salamatpoor, S., "Experimental study on shear resistance of Babolsar sand under anisotropic consolidation", 3rd International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, 28-30 June 2012, Near East University, Nicosia, North Cyprus
  6. Jafarian Y., Ghorbani A., Salamatpoor, Si., "Evaluating undrained behavior of Babolsar sand using strain-controlled triaxial tests", 3rd International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, 28-30 June 2012, Near East University, Nicosia, North Cyprus
  7. Baziar M. H. and Yanzdian M. T., Jafarian Y., "ENERGY-BASED EVALUATION OF LIQUEFACTION POTENTIAL USING A NEURO-FUZZY SYSTEM", 5th International Conference on Earthquake Geotechnical Engineering. January 2011, 13-13. Santiago, Chile.
  8. Rezaei Pour, H., Baziar M. H. and Jafarian Y., "EVALUATING STATE - OF - THE PRACTICE PROCEDURES FOR PREDICTING THE SEISMIC PERMANENT DISPLACEMENTS OF SLOPES BY THE AVAILABLE CASE HISTORIES", 5th International Conference on Earthquake Geotechnical Engineering. January 2011, 13-13. Santiago, Chile.
  9. Jafarian Y., Baziar M. H., Sadeghi Abdollahi A., Vakili R., (2010). “probabilistic evaluation of Field liquefaction potential using Relative State Parameter index”, Fifth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics and Symposium in Honor of Professor I.M. Idriss, May 24-29, 2010, San Diego California.
  10. Jafarian Y., Vakili R., Sadeghi A. R., Sharafi H., and Baziar M. H., (2008), “A NEW SIMPLIFIED CRITERION FOR THE ASSESSMENT OF FIELD LIQUEFACTION POTENTIAL BASED ON DISSIPATED KINETIC ENERGY“, The 14th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China.
  11. Nabili S., Jafarian Y. and Baziar M. H.,  (2008), “A Numerical Modeling Procedure for Liquefaction Analysis of a Centrifuge Test”, 6th International Conference on Case histories in Geotechnical Engineering and symposium in honor of professor James k. Mitchell, Arlington, VA (USA)-August 11-16, 2008.
  12. Nabili S., Jafarian Y., and Baziar M. H.,  (2008), “SEISMIC PORE WATER PRESSURE GENERATION MODELS: NUMERICAL EVALUATION AND COMPARISON”, The 14th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China.
  13. Baziar M. H. and Jafarian Y., (2004), “The minimum safe distances between slopes and structures”, Proceeding of the International Conference on Geotechnical Engineering (ICGE-2004), Sharjah, UAE, 3-6 October 2004, Paper No. ICGE-155.
  14. Jafarian Y. and Baziar M. H., (2005), ”Application of Sinusoidal Pulses instead of Acceleration Records in Newmark Sliding Block Method”, 11th International Association for Computer Method and Advances in Geomechanics (IACMAG), Turin, 19-24 June 2005.
  15. Baziar M. H. and Jafarian Y., (2006), "Assessment of Earth Dams Displacements During Earthquake Using Newmark and Decoupled Approaches", First European Conference on Earthquake Engineering and Seismology (a joint event of the 13th ECEE & 30th General Assembly of the ESC), Geneva, Switzerland, 3-8 September 2006, Paper Number: 1054.
  16. Kermani E., Jafarian Y., Baziar M. H., “A new attenuation model for peak ground acceleration in soil sites using genetic programming”, 2nd International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, 28-30 May 2009, Near East University, Nicosia, North Cyprus
  17. Noorzad A., Karimpour M. F., Jafarian Y. M., Rokneddin K., (2007), "Mitigation of Earthquake Induced Liquefaction Hazards, A Case Study: Bandar Abbas Dry Dock Project", 4th International Conference on Earthquake Geotechnical Engineering, June 25-28, 2007, Greece, Paper No. 1508.
  18. Ghodrati Amiri G., Rokneddin K., Karimpour M. F., Jafarian Y. and Razavian Amrei S. A., (2006), "Seismic Hazard Assessment of Southern Iran Dry Docks", First European Conference on Earthquake Engineering and Seismology (a joint event of the 13th ECEE & 30th General Assembly of the ESC), Geneva, Switzerland, 3-8 September 2006, Paper Number: 788.
  19. Jafarian Y. and Baziar M.H. (2006), “Comparison between sliding block and decoupled methods of earthquake induced permanent displacements of Doroudzan dam”, Proceeding of 7th International Conference of Civil Engineering, Tarbiat Modares University, IRAN, in Persian. 

Yaser Jafarian

Post-Doctoral researcher