Eva G Vinegar, Yoav O Rosenberg, Itay Reznick, Yair Gordin, Philip M Singer, Xinglin Wang, Zeliang Chen, Scott V Nguyen, Weidong Li, Tom Bradley, George J Hirasaki, Larry W Lake, Shimon Feinstein, Yossef H Hatzor, Harold J Vinegar. 2020. What Happens to the Petrophysical Properties of a Dual-Porosity Organic-Rich Chalk During Early-Stage Organic Maturation? SPWLA 61st Annual Logging Symposium. Published by OnePetro.

Ibanez, Juan Pablo and Yossef H. Hatzor, 2019. From creep to rapid sliding: back analysis of the Vajont landslide with the numerical DDA method. In: Proceedings of the 14th Congress of the International Society for Rock Mechanics. September 13 – 18, 2019. Foz do Iguassu, Brazil.

Ibañez, J. P. & Hatzor, Y. H., 2018. Friction degradation in rapid sliding: Back analysis of the catastrophic Vajont landslide using DDA. In: Proceedings of the 52nd U.S. Rock Mechanics Symposium, Seattle, USA, 18–684.

He, Ben-Guo, Yossef H. Hatzor, and Xia-Ting Feng, 2017. DDA for scaling rockburst hazard in blocky rock masses. In: Proceedings of the 13th International Conference on Analysis of Discontinuous Deformation, Tianjin, China, 8-10 December.

He, Ben-Guo, Yossef H. Hatzor, and Xia-Ting Feng, 2017. Ch. 4.5: DDA. In: Rockburst: Mechanisms, Monitoring, Warning, and Mitigation. (ed. X-T Feng), Elsevier.

Yagoda-Biran, Gony, and Yossef H. Hatzor, 2017. The numerical discontinuous deformation analysis (DDA) method: benchmark tests. In: Rock Mechanics and Engineering Volume 3: Analysis, Modeling & Design. (ed. X-T Feng), CRC Press.

Hatzor, Yossef H. 2016. Seismic vulnerability of historic monuments: a rock mechanics perspective. In: Rock Mechanics and Rock Engineering: From the Past to the Future – Ulusay et al., (Eds.). Proceedings of EUROCK 2016.Taylor and Francis Group, London, pp. 75 – 84. 

Gordin Y., Hatzor Y.H. and Vinegar H.J., 2016. Ultrasonic velocity and anisotropy of organic-rich chalks. In: Proceedings of the 50th U.S. Rock Mechanics Symposium, June 26 – 29, Huston, Texas. 

Shitrit O., Hatzor Y.H., Feinstein S., Vinegar H.J., 2016. Influence of Laboratory-Induced Maturation on Rock-Physics of Organic-Rich Chalks In: Proceedings of the 50th U.S. Rock Mechanics Symposium, June 26 – 29, Huston, Texas. Selected as one of the “best papers” by the conference scientific committee.

He, Ben-Guo, Yossef H. Hatzor, and Xia-Ting Feng, 2016. Energy considerations of strain rock bursts in jointed rock masses. In: Proceedings of the 1st International Symposium on Reducing Risks in Site Investigation, Modelling and Construction for Rock Engineering (GEOSAFE2016). Xi’an, China 25-27 May, 2016.

Hatzor, Y. H. 2015. Lessons from old underground openings in rocks: The wisdom of ancient engineers. Proceedings the International Symposium on Scientific Problems and Long-term Preservation of Large-scale. Longyou County, Zhejiang Province, China, 23–26 October, 2015. In: Z. Yang and C. Tanimoto (Eds.) Ancient Underground Engineering of Ancient Underground Opening and Preservation. Taylor & Francis Group, London, ISBN 978-1-138-02899-9, pp. 323 – 326.

He, B. G., Y. H. Hatzor, and X. T. Feng, 2015. Rock bursts simulation with DDA: preliminary results. Proceedings of the 12th International Conference on Analysis of Discontinuous Deformation. (eds. C. A. Tang and Y. Y. Young). 16 – 19 October, Wuhan, China, pp. 15-23.
Zelig, Ravit, Yossef H. Hatzor, and Xia-Ting Feng, 2015. Rock burst simulations with 2D-DDA. In: Proceedings of the 49th U.S. Rock Mechanics Symposium. June 28 – July 1 2015. San Francisco. ​

Shitrit, O., Y. O. Rosenberg, Y. H. Hatzor, I. Reznik, S. Nguyen, S. Feinstein, and H. J. Vinegar, 2015. Constitutive model for mechanical properties of highly porous organic-rich chalks from central Israel. In: Innovations in applied and theoretical rock mechanics. Proceedings of the 13th ISRM Congress. May 10 – 13, Montreal, Canada.

Hatzor, Y. H., Tal, Y., Yagoda-Biran, G. and X. T. Feng, 2015. The significance of modeling the excavation sequence in numerical analysis of underground opening. In: Innovations in applied and theoretical rock mechanics. Proceedings of the 13th ISRM Congress. May 10 – 13, Montreal, Canada.

Bakun-Mazor, D. and Hatzor, Y. H., 2015. Measuring thermally induced rock block displacement inside a controlled climate laboratory. In: Innovations in applied and theoretical rock mechanics. In: Proceedings of the 13th ISRM Congress. May 10 – 13, Montreal, Canada.

Hatzor, Y. H. and D. Bakun Mazor, 2013. Thermally vs. seismically induced block displacements in jointed rock slopes. Proceedings of the International Conference on Vajont - 1963-2013 - Thoughts and analyses after 50 years since the catastrophic landslide Padua, Italy - 8-10 October 2013. Published by: Italian Journal of Engineering Geology and Environment - Book Series (6): 41 – 49.  DOI: 10.4408/IJEGE.2013-06.B-03.

Hatzor, Y. H., Bao. H. and G. Yagoda Biran, 2013. Site Response Analysis with Two-Dimensional DDA. Proceedings of the 11th International Conference on Analysis of Discontinuous Deformation. (eds. G. Chen, Y. Ohnishi, L. Zheng, and T. Sasaki). 27-29 August, Fukuoka, Japan. CRC Press. p.43-50.

Bakun-Mazor, D. and Y. H. Hatzor, 2013. Thermally vs. seismically induced block displacements in rock slopes. Proceedings of the 11th International Conference on Analysis of Discontinuous Deformation. (eds. G. Chen, Y. Ohnishi, L. Zheng, and T. Sasaki). 27-29 August, Fukuoka, Japan. CRC Press. p.177-184.

Yagoda-Biran G. and Hatzor Y.H., 2013. Response spectra of slender columns as obtained with 2D-DDA and geophysical site response tests. In Proceedings of the 42ndUS Rock Mechanics Symposium, San Francisco, June 2013.

Yagoda-Biran G. and Hatzor Y.H., 2013. A new failure mode chart for toppling and sliding with consideration of earthquake inertia force. In Proceedings of the 42nd US Rock Mechanics Symposium, San Francisco, June 2013.

Hatzor Y. H. and Bao H. 2012. Accuracy of Wave Propagation Modeling with 2D-DDA. Proceedings of the 1st Workshop in DDA. ISRM DDA Commission. 14 October 2012, COEX Seoul Korea. p. 18 – 30.

Tal, Y. and Hatzor, Y. H. 2011. Surface settlement due to deep mining with the Numerical Manifold Method. In: The 12th congress of the international society for rock mechanics  (eds. Q. Qian and J. Zhao). October 16-21, 2011. Beijing, China.

Hatzor Y.H., and Yagoda-Biran, G., 2011. Constraining paleoseismic PGA using numerical analysis of structural failures in historic masonry structures: review of recent results. In: Advances in Rock Dynamics and Applications. Ed: Yingxin Zhou,  Jian Zhao. Chap. 16, p. 423-455. CRC Press.

Wainshtein, I. and Hatzor, Y. H., 2011. Large-scale two-dimensional laboratory load tests of rock-socketed piles in synthetic rock-masses. In: Proceedings CD of the 45th US Rock Mechanics Symposium, San Francisco, 26-29 June, 2011, CD ROM paper 11-293.

Bakun-Mazor, D., Hatzor, Y.H. Glaser, S.D., and Santamarina, J.C., 2011. Climatic effects on key-block motion: evidence from the rock slopes of Masada world heritage site. In: Proceedings CD of the 45th US Rock Mechanics Symposium, San Francisco, 26-29 June, 2011, CD ROM paper 11-487.

Hatzor, Y. H., I. Wainshtein, and D. Bakun Mazor, 2011. Stability of shallow karstic caverns in blocky rock masses. In: Proceedings CD of the 45th US Rock Mechanics Symposium, San Francisco, 26-29 June, 2011, CD ROM paper 11-465.

Hatzor, Y. H. Modelling dynamic deformation in natural rock slopes and underground openings with the numerical DDA method. In: Proceedings of the 6th Asian Rock Mechanics Symposium (eds. K. G. Sharma, T. Ramamurthy, V. K. Kanjlia, A.C. Gupta). 23 – 27 October, 2010, New Delhi, India. p. 73 – 83.

Bakun-Mazor D., Hatzor Y. H., Glaser S. D. 3D DDA vs. analytical solutions for dynamic sliding of a tetrahedral wedge In: Proceedings of the 9th International Conference on Analysis of Discontinuous Deformation (eds. MA G., Zhou Y.) Nanyang Technological University, Singapore: Research Publishing Services; 2009. p. 193-200.

Hatzor Y. H. Modelling dynamic deformation in natural rock slopes and underground openings with DDA. In: Proceedings of the 9th International Conference on Analysis of Discontinuous Deformation (eds. MA G., Zhou Y.) Nanyang Technological University, Singapore: Research Publishing Services; 2009. p. 13-26

Biran, O., Y. H. Hatzor, and A. Ziv. 2009. Micro-scale roughness effects on the friction coefficient of granite surfaces under varying levels of normal stress. In: Shear physics at the meso-scale in earthquake and landslide mechanics. Proceedings of Batsheva Seminar. (eds. Y. Hatzor, J. Sulem, and I. Vardoulakis). January 25 – 30, Ein Gedi, Israel. CRC Press/Balkema (in press).

Hatzor, Y. H. 2008. Dynamic numerical analysis of stone displacements in ancient masonry structures using DDA: a new method to estimate historic ground motions.  In: Proceedings of the 12 MIR Conference on Geotechnical Engineering in Seismic Conditions (eds. G. Barla and M. Barla) December 2 – 3, Turin, Italy. Patron editore – Bologna,  pp. 179 - 206.

Wainshtein, I., Hatzor, Y. H. and Doktofsky, M. 2008. Does shaft resistance of piles in rock scale with RQD? In: Proceedings CD of San Francisco 2008, the 42nd US Rock Mechanics Symposium and 2nd  U.S.-Canada Rock Mechanics Symposium, San Francisco, June 29-July 2.

Bakun-Mazor, D., Hatzor, Y. H. and Dershowitz, W. S. 2008. Numerical simulation of mechanical layering in sedimentary rock masses: a new hybrid geoDFN-DDA approach. In: Proceedings CD of San Francisco 2008, the 42nd US Rock Mechanics Symposium and 2nd U.S.-Canada Rock Mechanics Symposium, San Francisco, June 29-July 2.

Hatzor, Y. H., Kamai, R., Yagoda-Biran, G. 2008. A new method to estimate paleoseismic PGA using dynamic numerical back-analysis of keystone displacements in historic masonry structures. In: Proceedings CD of San Francisco 2008, the 42nd US Rock Mechanics Symposium and 2nd  U.S.-Canada Rock Mechanics Symposium, San Francisco, June 29-July 2.

Yagoda, G. and Hatzor, Y. H. 2007. Seismic risk estimation from overturning analysis of Hellenistic columns using DDA. In: Proceedings of ICADD-8, the 8th International Conference on the Analysis of Discontinuous Deformation (eds. Y. Ju, X. Fang, H. Bian). August 14-19, Beijing, China, pp. 123-128.

​Hatzor, Y. H. 2007. Validation and Application of discontinuous deformation analysis (DDA). In: Proceedings of the 1st  Sri Lankan Geotechnical Society International Conference on Soil and Rock Engineering, (ed. P.H.S.W. Kulatilake), August 7-11, Colombo, Sri Lanka.

Tsesarsky, M. and Hatzor, Y. H. 2007. Kinematics of overhanging cliffs. In: Proceedings of 11th  Congress of the International Society of Rock Mechanics, (eds. Ribeiro e Sousa, L., Ollala, C. and Grossman, N. F.), July 9 – 13, Lisbon, Portugal, Vol. 1, pp. 609-613.

Kamai R. and Hatzor, Y. H. 2006. Dynamic back analysis of structural failures in archeological sites to obtain paleo-seismic parameters using DDA. In: Proceedings of the 4th Asian Rock Mechanics Symposium, (eds. C. F. Leung and Y. X. Zhou), November 8 – 10, Singapore.

Hatzor, Y. H., Tsesarsky, M. And Eimermacher, R. C. 2006. Structural stability of historic underground openings in rocks: two case studies from Israel.  In:   “Fracture and Failure of Natural Building Stones  - Applications in the Restoration of Ancient Monuments”, (ed. S. K. Kourkoulis), Springer, Dordrecht, The Netherlands, Chapter 4.3, pp. 215-237.

Kamai, R. and Hatzor, Y.H. 2005. Dynamic back analysis of structural failures in archeological sites to obtain paleo-seismic parameters using DDA. Stability Analyses using Discontinuous Methods: Proceedings of the 7th International Conference on Analysis of Discontinuous Deformation (ed. M. MacLaughlin and N. Sitar), Honolulu, Hawaii, pp. 121-136. 


Hatzor, Y. H., Tsesarsky, M. And Eimermacher, R. C. 2006. Structural stability of historic underground openings in rocks: two case studies from Israel. In: “Fracture and Failure of Natural Building Stones - Applications in the Restoration of Ancient Monuments”, (ed. S. K. Kourkoulis), Springer, Dordrecht, The Netherlands, Chapter 4.3, pp. 215-237, 2006.


Tsesarsky, M. Hatzor, Y. H., Leviathan, Saltzman, U., Sokolowsky, M. 2005. Structural control on the stability of overhanging, discontinuous rock slopes. 40th U.S. Symposium on Rock Mechanics (USRMS): Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions. Anchorage, Alaska, June 25-29, 2005. CD-ROM paper ARMA/USRMS 05-771. 


Hatzor, Y. H. 2003. Fully dynamic stability analysis of jointed rock slopes. In: ISRM 2003 – Technology roadmap for rock mechanics, Proceedings of the 10th ISRM Congress. South African Institute of Mining and Metallurgy. pp. 503-514.


Tsesarsky, M. and Hatzor, Y. H. 2003. Deformation and kinematics of vertically jointed rock layers in underground openings. In: Development and Application of Discontinuous Modelling for Rock Engineering: ICADD – 6, Proceedings of  the 6th International Conference on Analysis of Discontinuous Deformation (ed. M. Lu),  Balkema Publishers, Lisse, 93-101. 


Hatzor, Y. H., Arzi, A. A. and Tsesarsky, M. 2002. Realistic Dynamic Analysis of Jointed Rock Slopes using DDA. Stability of Rock Structures: Proceedings of  the 5th International Conference on Analysis of Discontinuous Deformation (ed. Y. H. Hatzor),  Balkema Publishers, Lisse, pp. 47 – 56.

Tsesarsky, M., Hatzor, Y. H. and Sitar, N. 2002. Dynamic block displacement prediction – validation of DDA using analytical solutions and shaking table experiments. Stability of Rock Structures: Proceedings of the 5th International Conference on Analysis of Discontinuous Deformation (ed. Y. H. Hatzor), Balkema Publishers, Lisse, pp. 195 – 203. 

Tsesarsky. M. and Y. H. Hatzor, 2000. Stability of large span, shallow openings in soft and discontinuous chalk. Proceedings of EUROCK 20000 Symposium (ed. DGGT). VGE, Essen, pp. 427 – 432.

Hatzor, Y. H., 1999. Natural rock-slope stability issues at Masada national monument: A case study. In: Proceedings of the 9th ISRM Congress (eds. G. Vouille and P. Berest). Balkema, Lisse, Vol. 3, pp. 1621 – 1628. 

Hatzor, Y. H., 1999. Dynamic rock slope stability analysis at Masada national monument using Block Theory and DDA. Rock Mechanics for Industry, Proceedings of the 37th U.S. Rock Mechanics Symposium (eds. B. Amadei, R. Kranz, G. A. Scott, P. H. Smeallie). Balkema, Rotterdam, pp. 63-70. HTML Version

Hatzor, Y, H., 1999. The Vousoir beam reaction curve. ICADD-3, Proceedings of the 3rd  Intl. Con. On Analysis of Discontinuous Deformation (ed. B. Amadei) ARMA, Alexandria, pp. 117-126.

Hatzor, Y., 1995. Application of block theory to rock slope stability studies. In: Proceedings of the 35th US Rock Mechanics Symposium (eds. J. J. K. Daemen and R. A. Schultz), Balkema, Rotterdam, pp.71-77. 

Goodman, R. E., M. Karaca and Y. Hatzor, 1993. Rock structure in relation to concrete dams on granite. In: Proceedings of Geotechnical Practice in Dam Rehabilitation. Geotechnical Special Publication n. 35, ASCE, New York, NY, pp. 56-68.

Hatzor, Y., and R. E. Goodman, 1993. Determination of the design block for tunnel supports in highly jointed rock. In: Comprehensive Rock Engineering (ed. J. A. Hudson), Vol. 2: Analysis and design methods (ed. C. Fairhurst), Pergamon Press, Oxford, pp. 263-292.

Hatzor, Y., and R. E. Goodman 1992. Application of block theory and the critical key block concept to tunneling: two case histories. ​In Proceedings of ISRM conference on fractured and jointed rock masses (eds. L. R. Myer, N. G. W. Cook, R. E. Goodman, and C.- Tsang). Balkema: Rotterdam, 663-670.

​Goodman R. E. and Y. Hatzor, 1990. The influence of geological structure on the engineering of underground openings in discontinuous rock masses. In: Proceedings of 6th international IAEG congress (ed. D. G. Price), Balkema, Rotterdam, Vol. 4, pp. 2431-2446. ​