Civil Engineering
Klar

Tunneling induced soil displacements and their effect on buildings and buried structures;

Strain measurements using optical fibers and their application to geotechnology;

Reinforced soil walls;

Penetration problems;

Limit analysis; Pile foundations;

Fault detection systems;

Methane hydrate, Earthquake Engineering.

Conference Papers:

  1. Klar, A., and S. Frydman. (2001) ‘3D formulation for dynamic lateral soil pile interaction using 2D FLAC,’ in FLAC and Numerical Modeling in Geomechanics – 2001 (2nd  International FLAC Conference, Lyon, France, October 2001), pp. 71-77.
  2. Klar, A., and I. Einav. (2003) ‘Pile installation using FLAC,’ in FLAC and Numerical Modeling in Geomechanics – 2003. Proceedings of the 3rd International FLAC Symposium, Sudbury, Ontario, Canada, October 2003, pp. 273-278.
  3. Einav, I. and Klar, A. (2003) ‘An approach for nonlinear contact surface analysis and application to pile installation,’ BGA International Conference on Foundations, 2-5 Sep 2003, Dundee, pp. 259-268
  4. Klar, A., (2003) ‘End bearing capacity of driven piles,’ Proceeding of the 2nd International Young Geotechnical Engineers’ Conference, Constanza-Mamaia, Romania
  5. Einav, I., Klar, A., O’Loughlin, C. and Randolph, M. (2004) ‘Numerical modeling of dynamically penetrating arrow shaped anchors,’ 18th Australasian Conference of Mechanics of Structures and Materials, Perth, Western Australia.
  6. Klar, A., Vorster, T.E.B., Soga, K. and Mair, R.J. (2005) ‘Continuum solution of soil-pipe tunnel interaction including local failure,’ 11th International Conference of IACMAG, Torino, Italy. Vol. 2, pp. 687-694.
  7. Klar, A. and Soga, K. (2005) ‘Coupled deformation-flow analysis for Methane hydrate Production by depressurized wells,’ 3rd Biot Conference on Poromechanics, Oklahoma, USA. May 25-27, pp. 652-659.
  8. Vorster, T.E.B., Mair, R.J., Soga, K. and Klar, A. (2005) ‘Centrifuge modelling of the effects of tunneling on buried pipelines: mechanisms observed,’ 5th International Symposium TC28, Geotechnical Aspects of Underground Construction in Soft Ground, Amsterdam, The Netherlands, pp. 327-333.
  9. Vorster, T.E.B., Mair, R.J, Soga, K., Klar, A. and Bennett, P.J. (2006) ‘Using BOTDR fiber optic sensors to monitor pipeline behavior during tunneling,’ 3rd European Workshop on Structural Health Monitoring, July 5-7, Granada, Spain, pp. 930-937.
  10. Ng, M.Y.A., Klar, A., Soga, K., Takagi, K. and Okawa, K. (2006) ‘Physical and numerical modeling of horizontal gas-hydrate wells,’ 6th International Conference of Physical Modelling in Geotechnics, HK. Vol. 2, pp. 1501-1506.
  11. Avishur, M., Klar, A. and Frydman, S. (2006) ‘Hydraulic gradient models for study of seismic response of piles,’ 6th International Conference of Physical Modelling in Geotechnics, HK. Vol. 2, pp. 975-978.
  12. Vorster, T.E.B., Soga, K., Mair, R.J., Bennett, P.J., Klar, A., and Choy, C.K. (2006) ‘The use of fibre optic sensors to monitor pipeline behaviour,’ ASCE Geocongress 2006. pp. 1-6. doi: 10.1061/40803(187)33
  13. Bennett, P.J, Klar, A., Vorster, T.E.B., Choy, C.K., Mohammed, H.B., Soga, K., Mair, R.J., Tester, P.D. and Fernie, R. (2006) ‘Distributed optical fibre strain sensing in piles’ International Conference on Re-use of Foundations for Urban Sites, Watford, UK, 2006, pp. 71-78.
  14. Soga, K., Lee, S.L., Ng, M.Y.A. and Klar, A. (2006) ‘Characterisation and engineering properties of Methane hydrate soils,’ 2nd International Workshop on Characterisation and Engineering Properties of Natural Soils. Nov 29 – 1 Dec, Singapore, Hight and Lerouil (eds). Taylor & Francis Group. Vol. 4, pp. 2591-2642.
  15. Mohamad, H., Soga, K., Bennett, P.J., Klar, A. and Pellew, A. (2007) ‘Distributed optical fiber strain sensing in a secant piled wall,’ 7th International Symposium on Field Measurements in Geomechanics, ASCE, Boston, MA. September 24-27, pp. 1-12.
  16. Ng, M.Y.A., Klar, A., and Soga, K. (2008) ‘J-integral based formulation for simulation of fracture propagation,’ 1st International FLAC/DEM Symposium on Numerical Modeling, Minneapolis.
  17. Ng, M.Y.A., Klar, A., and Soga, K. (2008) ‘Analysis of methane hydrate production in layered soil with coupled deformation-flow-thermal formulation,’ 2008 Offshore Technology Conference, Houston. Paper No. 19364-MS. DOI: 10.4043/19364-MS.
  18. Klar, A. and Osman, A.S. (2008) ‘Predicting undrained displacements of piles under lateral loading,’ Proceedings of the 2nd BGA International Conference on Foundations, ICOF2008. Brown M. J., Bransby M. F., Brennan A. J. and Knappett J. A. (Editors). HIS BRE Press. 24-27 Jun 2008, Dundee. pp. 395-402.
  19. Klar, A. and Sas, T. (2008) ‘Rational design of reinforced soil walls based on kinematic constraints,’ Proceedings of the 2nd BGA International Conference on Foundations, ICOF2008. Brown M. J., Bransby M. F., Brennan A. J. and Knappett J. A. (Editors). IHS BRE Press. 24-27 Jun 2008, Dundee. pp. 719-728.
  20. Leung, Y.F., Soga, K. and Klar, A. (2008) ‘Optimization analysis of pile length distribution of squared pile groups,’ Proceedings of the 2nd BGA International Conference on Foundations, ICOF2008. Brown M. J., Bransby M. F., Brennan A. J. and Knappett J. A. (Editors). IHS BRE Press. 24-27 Jun 2008, Dundee. pp. 505-516.
  21. Klar, A. and Linker, R. (2009) ‘Feasibility study of the automated detection and localization of underground tunnel excavation using Brillouin optical time domain reflectometer,’ SPIE Conference on Defense, Security and Sensing. 13-17 April 2009, Orlando. Paper No. 7316-2
  22. Marshall, A.M., Elkayam, I. and Klar, A. (2009) ‘Ground behavior above tunnels in sands – DEM simulations versus centrifuge test results,’ EUROTUN 2009 Computational Methods in Tunneling, 9-11 September, 2009, Bochum. Vol. 1, pp. 183-190.
  23. Leung, Y.F., Hoult, N., Klar, A. and Soga, K. (2010) ‘Coupled foundation-superstructure analysis and Influance of Building Stiffness on Foundation Response,’ 2nd ASCE GeoShanghai International Conference, 3-5 June, Shanghai. ASCE Geotechnical Special Publication 205 – Deep Foundations and Geotechnical In-Situ Testing, pp. 61-66.
  24. Elkayam, I. and Klar, A. (2010) ‘Nonlinear analysis of tunneling effects on buildings using macro-elements’ GeoFlorida 2010 Advances in Analysis, Modeling and Design, 20-24 February, West Palm Beach, Florida. ASCE Geotechnical Special Publication 199, Volume 365, pp. 233.
  25. Klar, A. and Sas, T. (2010) ‘Evaluation of kinematic constraints based method for reinforced soil walls,’ GeoFlorida 2010 Advances in Analysis, Modeling and Design, 20-24 February, West Palm Beach, Florida. ASCE Geotechnical Special Publication 199, Vol 365, pp. 227.
  26. Marshall, A.M., Elkayam, I., Klar, A. and Mair, R.J. (2010) ‘Centrifuge and discrete element modelling of tunnelling effects on pipelines,’ 7th International Conference on Physical Modelling in Geotechnics, 28 June – 1 July 2010, Zurich. pp. 633-637.
  27. Klar, A., Goldfeld, Y. and Charas, Z. (2010) ‘Measures for identifying cracks within reinforced concrete beams using BOTDR,’ SPIE – smart structures/NDE, 2010, San Diego. Paper No. 7647-90.
  28. Elkayam, I., Klar, A. Linker, R. and Marshall, A. (2010) ‘Validation of a BOTDR based system for the detection of smuggling tunnels,’ SPIE – Optics and Photonics in Global Homeland Security VI, 2010, Orlando. Paper No. 7666-84.
  29. Klar, A. and Lavan, O. (2011) ‘Disaggregation based regional maps for liquefaction analysis,’ 5th  International Conference of Earthquake Geotechnical Engineering, Santiago, 10-13 January 2011. Paper No. DBRKL.
  30. Leung, Y.F., Soga, K. and Klar, A. (2011) ‘Multi-objective foundation optimisation and its application to pile reuse’ Geo-Frontiers 2011 – Advances in Geotechnical Engineering. 13-16 March 2011, Dallas, Texas. pp. 75-84.
  31. Goldfeld, Y., and Klar, A. (2011) ‘Identification of the stiffness distribution using BOTDR,’ In F.-K. Chang (Ed.), Proceedings of the 8th International Workshop on Structural Health Monitoring 2011: Conditioned-based Maintenance and Intelligent Structures (pp. 1376-1383). Standford: DEStech Publication, Inc.
  32. Linker, R. and Klar, A. (2013) ‘Detection of tunnel excavation using fiber optic reflectometry: experimental validation,’ SPIE Conference on Defense, Security and Sensing. 29 April – 3 May 2013 Baltimore, Paper No. 8709–34.
  33. Uchida, S. and Klar, A. (2013) ‘Statistical evaluation of the seismic serviceability of a bullet train along the Dead Sea Fault,’ the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, 12-14 June 2013, Kos Island Greece. Paper No. 1314.
  34. Pinkert, S. and Klar, A. (2013) ‘Analytical and experiementally based resistance factors for ‘full-flow’ penetrometers,’ the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2-5 Sep. 2013. 781-784.
  35. Klar, A. and Normand, E. (2012) ‘Kinematic constraints based method for extensible reinforcement in MSE Walls,’ International Symposium on Design and Practice of Geosynthetic-Reinforced Soil Structures, Bologna 14-16 October, 2013. Paper accepted.
  36. Pinkert, S. and Klar, A. (2013) ‘Solution of full-flow steady state large displacement problems using FLAC,’ proceedings of the 3rd International FLAC/DEM Symposium, 22-24 Oct, 2013, Hangzou, China. Paper accepted.
  37. Uchida, S., Klar, A. Charas, Z. and Yamamoto, K. (2013) ‘Thermo-hydro-mechanical sand production model in hydrate-bearing sediments’, EAGE International Workshop on Geomechanics and Energy – The Ground as Energy Source and Storage, 26 – 28 November 2013, Lausanne, Switzerland. Paper Th 01 11.
  38. Klar, A. Lloyd, N., Aharonov, E. and Katz, O. (2015) ‘Beyond critical acceleration pseudostatic analysis,’ 6th International Conference on Earthquake Geotechnical Engineering (6ICEGE), Christchurch, New Zealand, 2-4 November 2015.
  39. Viana da Fonseca, A., Ferreira, C., Soares, M., and Klar, A. (2015) ‘Key Note Lecture: Improved laboratory techniques for advanced geotechnical characterization towards matching in situ properties,’ the 6th International Symposium on Deformation Characteristics of Geomaterials.
  40. Klar, A. Ucihda, S. and Levenberg, E. (2015) ‘In situ and laboratory mechanical characterization using high-resolution fiber optic distributed sensing’ the 6th International Symposium on Deformation Characteristics of Geomaterials. 15-18 November 2015, Buenos Aires, Argentina, pp. 382-389, DOI:10.3233/978-1-61499-601-9-382.
  41. Uchida, S., Klar, A. and Yamamoto, K. (2015) ‘Geomechanical effect of hydrate dissociationinduced stress relaxation,’ 2nd EAGE Workshop on Geomechanics and Energy, 13-15 Oct 2015, Celle, Germany, Extended abstract. DOI: 10.3997/2214-4609.201414292.
  42. Uchida, S., Deusner, C., Klar, A. and Haeckel, M. (2016) ‘Chemo-thermo-hydro-mechanical formulation for CO2 and CH4 hydrate formation and dissociation within hydrate-bearing sediments,’ Geo-Chicago 2016: Sustainability, Energy, and the Geoenvironment, 14-18 Aug 2015, pp. 235-244.
  43. Uchida, S., Klar, A. and Yamamoto, K. (2016) ‘Sand production modeling of the 2013 Nankai offshore gas production test,’ 1st International Conference on Energy Geotechnics, 29-31 August, Kiel, Germany, pp. 451-458.
  44. Iten, M., Spera, Z., Jeyapalan, J., Duckworth, G., Inaudi, D., Bao, X., Noether, N., Klar, A., Marshall, A., Glisic, B., Facchini, M., Jason, J., Elshafie, M., Kechavarzi, C., Miles, W., Rajah, S., Johnston, B., Allen, J., Lee, H., Leffler, S., Zadok, A., Hayward, P., Waterman, K., and Artieres, O. (2015) ‘Benefits of global standards on the use of Optical fiber sensing systems for the impact of construction of new utilities and tunnels on existing utilities,’ Pipelines 2015: Recent Advances in Underground Pipeline Engineering and Construction, August 23-26 2016, Baltimore, Maryland, pp. 1655-1666.
  45. Klar, A., Levenberg, E., Tur, M., and Zadok, A. (2016) ‘Sensing for smart infrastructure: prospective engineering applications,’ International Conference on Smart Infrastructure and Construction (ICSIC), 27 29 June 2016, Cambridge, UK.
  46. Klar, A. and Elkayam, I. (2016) ‘Tunnel face stability curves considering asymmetric yielding,’ EURO:TUN 2017, 4th international conference on computational methods in tunneling and subsurface engineering, Innsbruck, Austria, 18-20 Apr 2017, paper submitted.
  47. Klar, A. (2016) ‘Exact elastic continuum solution for tunneling effects on buried pipelines,’ EURO:TUN 2017, 4th international conference on computational methods in tunneling and subsurface engineering, Innsbruck, Austria, 18-20 Apr 2017, paper submitted.

 

Research Reports or Case Reports:

  1. Klar, A., Spasojevic, A.D. and Soga, K. (2004) ‘Continuum solution for lateral loading of large pile groups,’ CUED/D-SOIL/TR 334, Cambridge University.
  2. Klar, A., Vorster, T.E.B., Soga, K. and Mair, R.J. (2004) “Soil-pipe interaction due to tunnelling: comparison between Winkler and elastic Continuum solutions,” CUED/DSOIL/ TR 332, Cambridge University
  3. Klar, A., and Soga, K. (2005) ‘The effect of ground settlements on the axial response of piles: some closed form solutions,’ CUED/D-SOIL/TR 341, Cambridge University.
  4. Kovler, K., Rabinovitch, O., Goldfeld, Y., Linker, R. and Klar, A. (2008) ‘Nano-and micro-devices for monitoring transportation structures and the development of smart and interactive concretes,’ Research Report 556, National Building Research Institute, Technion – IIT (in Hebrew).
  5. Klar, A. and Linker, R. (2008) ‘Sinkhole detection system using BOTDR,’ The Ministry of National Infrastructures, Research Report ES-58-2008.
  6. Klar, A. and Sas, T. (2010) ‘Rational design of reinforced soil walls using kinematic constraints,’ Research Report 596, National Building Research Institute, Technion – IIT (in Hebrew).
  7. Klar, A. and Elkayam, I. (2011) ‘Soil structure interaction due to tunneling,’ Research Report 610, National Building Research Institute, Technion – IIT (in Hebrew).
  8. Klar, A. and Goldfeld, Y. (2011) ‘Damage identification in bridges using fiber-optics,’ Research Report 615, National Building Research Institute, Technion – IIT (in Hebrew).
  9. Klar, A. (2011) ‘Disaggregation seismic maps for Israel,’ Research Report 626, National Building Research Institute, Technion – IIT (in Hebrew).
  10. Klar, A., Meirova, T., Zaslavsky, Y. and Shapira, A. (2011) ‘Spectral acceleration maps for use in SI 413 amendment No. 5,’ GII Report No. 522/599/11 and NBRI Report No. 2012938-1 (in Hebrew).
  11. Normand, E. and Klar, A. (2014) ‘Reinforced earth walls – inclusion of advanced aspects in rational design,’ Research Report ???, National Building Research Institute, Technion – IIT.

Academic Degrees:

  • 2003 Ph.D. Civil Engineering (Geotechnology), Technion, Haifa, Israel.
  • 1999 B.Sc. (Summa Cum Laude), Civil Engineering, Technion, Haifa, Israel.

 

Academic Appointments:

  • 2011-present: Associate Professor, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.
  • 2005-2011: Senior Lecturer, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.
  • 2004-2005: Research Associate, Engineering Department, University of Cambridge, UK.
  • 2003-2004: Research Fellow (type F), Churchill College, University of Cambridge, UK.

 

Teaching Experience:

  • Constitutive models in soil mechanics (graduate, Technion)
  • Plasticity in geomechanics (graduate, Technion)
  • Foudations (graduate, Technion)
  • Geotechnical aspects of earthquake engineering (graduate, Technion)
  • Soil Engineering (undergraduate, Technion)
  • Geomechanics (undergraduate, Technion)
  • Soil mechanics lab. (undergraduate, Technion)
  • Introduction to earthquake engineering (guest lecturer; undergraduate, Technion)

 

Honors and Awards:

  • 2009 A. Aharonson Faculty Award for excellence in teaching in the course “Soil Engineering’.
  • 2008 Excellence in teaching, Technion award – Faculty of Civil and Environmental Engineering.
  • 2007 Crampton Prize (ICE – UK institute of Civil Engineering) for best geotechnical paper.
  • 2006 Jennings Award (South African Geotechnical Society) for best geotechnical paper.
  • 2005 Harry Goldman Academic Lectureship – Canada.
  • 2003 British Technion Society, Scholarship for research at Cambridge University, UK.
  • 2003 Technion best geotechnical thesis of the year award.
  • 2003 Sylvia and David Fine excellence scholarship for PhD students.
  • 2003 Gutwirth Fellowship.
  • 2001 Gutwirth Special Fellowship.
  • 2001 Beryl Freed Leonards PhD Research Grant.
  • 2000 Prof. Gdalyah Wiseman Memorial Fund, for excelling in the course “Stability of Retaining Walls and Slopes”.
  • 2000 Uzi Manor Memorial Fund, for top student in the course ”Rigid Pavements”.
  • 1999 Ronen Cohen Memorial Fund, for top student in the course “Flexible Pavement Design”.
  • 1998 Beryl Freed Leonards Fund, for top student in the course “Soil and Foundation Engineering”.
  • 1998 Nisim Sechi Memorial Fund, for top student in the course “Statics of Structures 2”.
  • 1998 Genia and Prof. Aron Zaslavsky Memorial Fund, for top student in the course “Strength of Materials 2”.
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