Jonny Sjöberg. An Itasca International Company 1/12/18

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1 Jonny Sjöberg An Itasca International Company Changping, Y., J. Sjöberg, Johansson, D. & Petropoulos, N. "A numerical study of the impact of short delays on rock fragmentation", Int. J. Rock Mech. Min. Sci., 100, pp , Vatcher, J., J. Sjöberg, M. Bošković and T. Wettainen. "Numerical modelling and seismicity at the Kiirunavaara mine, Sweden", in: Proceedings 3rd Nordic Rock Mechanics Symposium, NRMS 2017 (Helsinki, October 11 12, 2017), pp ISBN , ISSN , Changping, Y., J. Sjöberg and D. Johansson. "Numerical modelling for blast-induced fragmentation in sublevel caving mines". Tunnelling and Underground Space Technology, 68, September 2017, pp Umar, S.B., J. Sjöberg and T. Savilahti. " Modelling of caving and deformation mechanisms of the hangingwall of the Printzsköld oreboby at Malmberget mine", The Journal of the Southern African Institute of Mining and Metallurgy, Volume 117, April 2017, pp , URL: Sjöberg, J., F. Perman, D. Lope Álvarez, B-M. Stöckel, K. Mäkitaavola, E. Storvall and T. Lavoie. "Deep sublevel cave mining and surface influence", in: Deep Mining 2017: Eighth International Conference on Deep and High Stress Mining (Perth, March 28 30), Wesseloo, J. (ed.), pp Perth: Australian Centre for Geomechanics, Perth, ISBN , Vatcher, J., S. McKinnon and J. Sjöberg. "Geomechanical characteristics inferred from mine-scale rock mass behaviour", in: Deep Mining 2017: Eighth International Conference on Deep and High Stress Mining (Perth, March 28 30), Wesseloo, J. (ed.), pp Perth: Australian Centre for Geomechanics, Perth, ISBN , Lope Álvarez, D., J. Sjöberg, R. Bertilsson, M. Eriksson and D. Mas Ivars. "Tunneldrivning i heterogena förhållanden", in: Bergmekanikdag 2017 Föredrag (Stockholm, March 13, 2017), pp , Stockholm: Stiftelsen Bergteknisk Forskning BeFo (in Swedish), Lope Álvarez, D., J. Sjöberg, M. Eriksson, R. Bertilsson and D. Mas Ivars. "Tunnelling and reinforcement in heterogeneous ground A case study", in: Proceedings Eight International Symposium on Ground Support in Mining and Underground Construction (Luleå, Sweden, September 12 14, 2016), Paper No. 193, Mäkitaavola, K., B-M Stöckel, J. Sjöberg, S. Hobbs, J. Ekman, M. Henschel and A. Wickramanyake. "Application of InSAR for Monitoring Deformations at the Kiirunavaara Mine", in: Proceedings ISMS 2016, 3rd International Symposium on Mine Safety, Science and Engineering (Montreal, Canada, Aug 13 19, 2016), Paper No. 73, pp , Perman, F., T. Wettainen, T., C. Gonzalo and J. Sjöberg. "Three-dimensional modeling and stress calibration for a complex mining geometry", in Proceedings RS2016, 7th International Symposium on In-Situ Rock Stress (Tampere, Finland, May 10-12, 2016), pp , ISBN , Vatcher, J., S. D. McKinnon and J. Sjöberg. "Developing 3-D mine-scale geomechanical models in complex geological environments, as applied to the Kiirunavaara Mine", Engineering Geology, 203, pp , /12/18

2 Page 2 of 8 Sjöberg, J., A. Bolin, A. Sánchez Juncal, T. Wettainen, D. Mas Ivars and F. Perman. "Input to ore pass design a numerical modelling study", in Proceedings of International Seminar on Design Methods in Underground Mining (17 19 Nov, 2015, Perth, Australia), Potvin, Y,. (eds.), pp Perth: Australian Centre for Geomechanics, Sjöberg, J. and T. Savilahti. "Caving in the Fabian Orebody from Mining Stope to Cave Crater in Malmberget", in Proceedings 8 th Asian Rock Mechanics Symposium. Rock Mechanics for Global Issues Natural Disasters, Environment and Energy (14 16 October, 2014, Sapporo, Japan), Shimizu, N., Kaneko, K. Kodama, J. (eds.), pp Tokyo: Japanese Committee for Rock Mechanics, Vatcher, J., S. D. McKinnon and J. Sjöberg. "Mine-scale numerical modelling, seismicity and stresses at Kiirunavaara Mine, Sweden", in Proceedings of the Seventh International Conference on Deep and High Stress Mining (16 18 Sept, 2014, Sudbury, Ontario, Canada), Hudyma, M., Potvin, Y,. (eds.), pp Perth: Australian Centre for Geomechanics, Lindfors, U., J. Sjöberg, P. Vedin, R. Swindell, L. Rosengren, M. Holmberg and B. Stille, "Design of Rock Mass Excavations New Guidelines from the Swedish Transport Administration", in Proceedings 48th US Rock Mechanics / Geomechanics Symposium (Minneapolis, June 1 4, 2014), American Rock Mechanics Association (CD-ROM), Paper ARMA , Lindfors, U., P. Vedin, L. Rosengren, M. Holmberg, M., R. Swindell, B. Stille and J. Sjöberg, "Dimensionering av bergkonstruktioner nya råd från Trafikverket" (in Swedish), in Bergmekanikdag 2014 Föredrag (Stockholm, March 10, 2014), pp , Stockholm: Stiftelsen Bergteknisk Forskning BeFo (in Swedish), Vatcher, J., S. D., McKinnon, J. Sjöberg, and C. Dahnér, C. "Modelling methodology: Structural geology and rock mass behaviour at Kiirunavaara Mine". In Rock Engineering and Rock Mechanics: Structures in and on Rock Masses, Proceedings Eurock 2014 (Vigo, May27 29, 2014), eds. Alejano, L., Peruch, Á., Olalla, C. & Jiménez, R., pp , London: Taylor & Francis Group, Umar, S. B., J. Sjöberg, and E. Nordlund, "Rock Mass Characterization and Conceptual Modeling of the Printzsköld Orebody of the Malmberget Mine, Sweden". Journal of Earth Sciences and Geotechnical Engineering, Vol. 3, No. 4, 2013, ISSN: (print), (online) Sciencepress Ltd, Sjöberg, J. "Numerical analysis, slope design and in situ stress". Keynote lecture. In Proceedings Slope Stability 2013 (Brisbane, September 25 27, 2013), pp , Perth: Australian Centre for Geomechanics, Stöckel, B-M., K. Mäkitaavola, and J. Sjöberg, "Hangingwall and footwall stability issues in sublevel caving", in Proceedings Slope Stability 2013 (Brisbane, September 25 27, 2013), pp , Perth: Australian Centre for Geomechanics, Perman, F., J. Sjöberg & T. Wettainen. "Numerical Modeling of Mining-Induced Seismicity Review and Case Study Example from the Malmberget Mine", in Proceedings of the 6th International Symposium on In-situ Rock Stress (Sendai, August 20 22, 2013), pp ISBN , 2013

3 Page 3 of 8 Umar, S. B., J. Sjöberg, and E. Nordlund, "Rock Mass Characterization and Conceptual Modeling of the Printzsköld Orebody of the Malmberget Mine", in Proc 47th US Rock Mechanics Symposium (San Fransisco, June 23 26, 2013). American Rock Mechanics Association (CD-ROM), Paper ARMA , Johansson, D., E. Novikov, N. Petropoulus, U. Nyberg and J. Sjöberg. "Det är väl på tiden att vi minskar tiden, eller? effekten av korta fördröjningar i Aitik" (in Swedish), in Föredrag vid BK-dagen (Stockholm, March 12, 2013), Stockholm: Bergsprängningskommittén, Sjöberg, J. and T. Savilahti. Uppblockning i Fabian från brytningsrum till rasgrop i Malmberget, (in Swedish), in Bergmekanikdag 2013 Föredrag (Stockholm, March 2013), pp Stockholm: BeFo, Yi, C., D. Johansson, D., U. Nyberg and J. Sjöberg. Numerical Simulation for the Influence of Delay time on the Rock Fragmentation, Rock Fragmentation by Blasting (FRAGBLAST), pp London: Taylor & Francis Group, ISBN , Sjöberg, J., F. Perman, C. Quinteiro, L. Malmgren, C. Dahnér-Lindkvist and M. Boskovic. Numerical Analysis of Alternative Mining Sequences to Minimise the Potential for Fault Slip Rock Bursting, Mining Technology, 121(4), , Edelbro, C., J Sjöberg, L. Malmgren and C. Dahnér-Lindqvist. Prediction and Follow-Up of Failure and Fallouts in Footwall Drifts in the Kiirunavaara Mine, Canadian Geotechnical Journal, 49(5), , doi: /t , Schill, M. and J. Sjöberg. Finite Element Simulations of Blasting and Fragmentation with Precise Initiation, Submitted to 12th International LS-DYNA Users Conference (Dearborn, June 3 5, 2012), Sjöberg, J., F. Perman, C. Quinteiro, L. Malmgren, C. Dahnér-Lindkvist and M. Boskovic. Numerical Analysis of Alternative Mining Sequences to Minimize the Potential for Fault Slip Rock Bursting, in Deep Mining 2012 (Perth, March 28 30, 2012), pp Y. Potvin (ed). Perth: Australian Centre for Geomechanics. ISBN , 2012 Sjöberg, J., M. Schill, D. Hilding, Y. Changping, U. Nyberg and D. Johanson. Computer Simulations of Blasting with Precise Initiation, Rock Engineering and Technology for Sustainable Underground Construction (Proceedings, Eurock 2012 ISRM International Symposium, Stockholm, May 28 30, 2012). Stockholm: BeFo Stöckel, B-M., J. Sjöberg, K. Mäkitaavola and T. Savilahti. Mining-Induced Ground Deformations in Kiruna and Malmberget, Rock Engineering and Technology for Sustainable Underground Construction (Proceedings, Eurock 2012 ISRM International Symposium, Stockholm, May 28 30, 2012). Stockholm: BeFo Perman, F., J. Sjöberg and C. Dahnér. Detailed Three-Dimensional Stress Analysis of Complex Orebody Geometry Model Setup and Results for the Malmberget Mine, in Continuum and Distinct Element Modeling in Geomechanics 2011 (Proceedings, 2nd International FLAC/DEM Symposium, Melbourne, February 2011), Paper No , pp D. Sainsbury et al., Eds. Minneapolis: Itasca International Inc., Sjöberg, J., D. M. Stöckel, K. Mäkitaavola and T. Savilahti. Bergmekanisk omgivningspåverkan i stor skala gruvinducerade markdeformationer i Kiruna och Malmberget (in Swedish), in Proceedings, Bergmekanikdag 2011 Föredrag (Stockholm, March 2011), pp Stockholm: BeFo, 2011.

4 Page 4 of 8 Sjöberg, J., C. Dahnér, L. Malmgren and F. Perman. Forensic Analysis of a Rock Burst Event at the Kiirunavaara Mine Results and Implications for the Future, in Continuum and Distinct Element Modeling in Geomechanics 2011 (Proceedings, 2nd International FLAC/DEM Symposium, Melbourne, February 2011). Paper No , pp D. Sainsbury et al., Eds. Minneapolis: Itasca International Inc., Wettainen, T., J. Sjöberg and C. Dahnér. Analys och prognostisering av uppblockning i Printzsköld (in Swedish), in Proceedings, Bergmekanikdag 2011 Föredrag (Stockholm, March 2011), pp Stockholm: BeFo, Wickramanayake, A., Hobbs, S., Henschel, M., Sjöberg, J., T. Lindgren and P. Fernando. SAR Interferometry with Seasonally Changing Snow Cover, in Advances in the Science and Applications of SAR Interferometry from ESA and 3rd Party Missions (Proceedings, Fringe 2011 Worskhop, Frascati, Rome, September 2011), European Space Agency, Sjöberg, J., and F. Perman. Tredimensionell spänningsanalys av block 19 i Kiirunavaara gruva (in Swedish), in Proceedings, Bergmekanikdag 2010 Föredrag (Stockholm, March 2010), pp Stockholm: BeFo, Bertilsson, R., J. Sjöberg and L. Malmgren. Tredimensionella analyser av kritiska anläggningar på ny huvudnivå i Kiirunavaara (in Swedish), in Proceedings, Bergmekanikdag 2009 Föredrag (Stockholm, March 2009), pp Stockholm: SveBeFo, Sjöberg, J. Three-Dimensional Unit Stress Tensor Modeling of Complex Orebody Geometry, in CD Proceedings, 42nd US Rock Mechanics Symposium and 2nd US-Canada Rock Mechanics Symposium (San Francisco, June-July 2008), Paper No. ARMA D. Yale et al., Eds. Red Hook, New York: Curran Associates, Sjöberg, J., and D. Ask. Ny utrustning för hydrauliska spänningsmätningar och spänningskalibrering med tredimensionell numerisk modellanalys (in Swedish), in Proceedings, Föredrag vid Fjellsprengningsteknik, Bergmekanikk 2008 (Oslo, Nov 2008). Sjöberg, J., R. Bertilsson and R. Christiansson. Overcoring in Deep Surface Boreholes Recent Experiences and Lessons for the Future, in CD Proceedings, 42nd US Rock Mechanics Symposium and 2nd US-Canada Rock Mechanics Symposium (San Francisco, June-July 2008), Paper No. ARMA D. Yale et al., Eds. Red Hook, New York: Curran Associates, Sjöberg, J., and L. Malmgren. Application of Global-Local Modeling to Mining Rock Mechanics Problems, in Continuum and Distinct Element Numerical Modeling in Geo-Engineering (Proceedings, 1st International FLAC/DEM Symposium, Minneapolis, August 2008), Paper No R. Hart et al., Eds. Minneapolis: Itasca Consulting Group, Inc., Sjöberg, J., and L. Malmgren. New Haulage Level at Kiirunavaara Rock Mechanics Challenges and Analyses, in MASSMIN 2008 (Proceedings, 5th International Conference on Mass Mining, Luleå, Sweden, June 2008), pp H. Schunnesson and E. Nordlund, Eds. Luleå: Division of Mining & Geotechnical Engineering, Luleå University of Technology, Sjöberg, J., and P. I. Marklund. Rock Mechanics Work at the Aitik Open Pit, in MASSMIN 2008 (Proceedings, 5th International Conference on Mass Mining, Luleå, Sweden, June 2008), pp H. Schunnesson and E. Nordlund, Eds. Luleå: Division of Mining & Geotechnical Engineering, Luleå University of Technology, 2008.

5 Page 5 of 8 Edelbro, C., J. Sjöberg and E. Nordlund. A Quantitative Comparison of Strength Criteria for Hard Rock Masses, Tunn. Undergr. Sp. Tech., 22(1), (2007). Johansson, E., J. A. Hudson, M. Hakala, J. Sjöberg, S. Riikonen and P. Syrjänen. Rock Mechanics Research for Radioactive Waste Disposal in Finland, in The Second Half Century of Rock Mechanics (Proceedings, 11th Congress of the International Society for Rock Mechanics, Lisbon, July 2007), Vol. 1, pp L. Ribeiro e Sousa et al, Eds. London: Taylor & Francis Group, Lundman, P., O. Olofsson, U. Lindfors and J. Sjöberg. Bergmekanik i Banverkets perspektiv projekteringsanvisningar, Eurocode och BV Tunnel (in Swedish), in Proceedings, Bergmekanikdag 2007 Föredrag (Stockholm, March 2007), pp Stockholm: SveBeFo, Marklund, P. I., J. Sjöberg, F. Ouctherlony and N. Nilsson. Improved Blasting and Bench Face Slope Design at the Aitik Mine, in Slope Stability 2007 (Proceedings, 2007 International Symposium: Rock Slope Stability in Open Pit Mining and Civil Engineering, Perth, September 2007), pp Y. Potvin, Ed. Perth: Australian Centre for Geomechanics, Mörén, L., and J. Sjöberg. Rock Erosion in Spillway Channels A Case Study of the Ligga Spillway in The Second Half Century of Rock Mechanics (Proceedings, 11th Congress of the International Society for Rock Mechanics, Lisbon, July 2007), Vol. 1, pp L. Ribeiro e Sousa et al., Eds. London: Taylor & Francis Group, Perman, F., J. Sjöberg, O. Olofsson and L. Rosengren. Numerical Analysis of Shotcrete Reinforcement, in The Second Half Century of Rock Mechanics (Proceedings, 11th Congress of the International Society for Rock Mechanics, Lisbon, July 2007), Vol.2, pp L. Ribeiro e Sousa et al., Eds. London: Taylor & Francis Group, Sjöberg, J., and L. Malmgren. Ny huvudnivå i Kiirunavaara bergmekaniska utmaningar och analyser (in Swedish), in Proceedings, Bergmekanikdag 2007 Föredrag (Stockholm, March 2007), pp Stockholm: SveBeFo, Hakala, M., J. Sjöberg, J. A. Hudson, R. Christiansson, E. Johansson and S. Riikonen. Quality Control and Interpretation of Overcoring In-situ Stress Measurement Data, in Proceedings, International Symposium on In-Situ Rock Stress (Trondheim, June 2006), pp London: Taylor & Francis, Mörén, L., P. E. Söder and J. Sjöberg. Bergerosion i utskovskanaler (in Swedish), in Proceedings, Bergmekanikdag 2006 Föredrag (Stockholm, March 2006), pp Stockholm: SveBeFo, Sjöberg, J., U. Lindfors and P. Lundman. Design Guidelines for Railroad Tunnels in Sweden The Banverket Perspective, in Proceedings, North American Tunneling 2006 Conference (Chicago, June 2006), pp London: Taylor & Francis, Sjöberg, J., U. Lindfors, F. Perman, D. Ask and R. Christiansson. Reliable Stress Assessment Using Measurements, Observations, and Analysis, in Proceedings, International Symposium on In-Situ Rock Stress (Trondheim, June 2006), pp London: Taylor & Francis, Sjöberg, J., F. Perman, M. Leander and D. Saiang. Three-dimensional Analysis of Tunnel Intersections for a Train Tunnel under Stockholm, in Proceedings, North American Tunneling 2006 Conference (Chicago, June 2006), pp London: Taylor & Francis, 2006.

6 Page 6 of 8 Jacobsson, L., C. Dahnér, F. Perman and J. Sjöberg. Uppföljning och analys av ny layout för skivrasbrytning i Kiruna (in Swedish), in Proceedings, Bergmekanikdag 2005 Föredrag (Stockholm, March 2005), pp Stockholm: SveBeFo, Brandshaug, T., L. Rosengren, J. Sjöberg and P. Lundman. Jämförelse av strategier för analys av bergförstärkning med numeriska modeller (in Swedish), in Bergmekanikdag 2004 (Proceedings, Presentations from Rock Mechanics Day, March, 2004), pp Stockholm: SveBeFo, Lundman, P., J. Sjöberg and U. Lindfors. Banverkets syn på bergmekanisk dimensionering med exempel från framtida projetkeringshandbok (in Swedish), in Proceedings, Bergmekanikdag 2004 Föredrag (Stockholm, March 2004), pp Stockholm: SveBeFo, Sjöberg, J., R. Christiansson and J. A. Hudson. ISRM Suggested Method for Rock Stress Estimation: Part 2 Overcoring Methods, Int. J. Rock Mech. Min. Sci., 40(7-8), (2003). Sjöberg, J., and H. Klasson. Stress Measurements in Deep Boreholes Using the Borre (SSPB) Probe, Int. J. Rock. Mech. Min. Sci., 40(7-8), (October 2003). Sjöberg, J., and H. Klasson. Stress Measurements in Deep Boreholes Using the Borre (SSPB) Probe, in Rock Stress (Proceedings, 3rd International Symposium on Rock Stress, RS Kumamoto '03, Kumamoto, November 2003), pp Lisse: Swets & Zeitlinger, Sjöberg, J., U. Lindfors and A. Landström. Stabilitet av berganfang vid Vargfors valvdamm (in Swedish), in Proceedings, Bergmekanikdag 2003 Föredrag (Stockholm, March 2003), pp Stockholm: SveBeFo, Sjöberg, J., P. Lundman, E. Nordlund and C. Quinteiro. Stability Analysis of Ore Passes in the Kiirunavaara Mine, in Technology Roadmap for Rock Mechanics (Proceedings, 10th Congress of the ISRM, Johannesburg, September 2003), Vol. 2, pp Johannesburg: SAIMM, Sjöberg, J., P. Lundman, E. Nordlund and C. Quinteiro. Stabilitetsanalys av bergschakt i Kiirunavaara (in Swedish), in Proceedings, Bergmekanikdag 2002 Föredrag (Stockholm, March 2002), pp Stockholm: SveBeFo, Sjöberg, J. A Slope Height Versus Slope Angle Database, in Slope Stability in Surface Mining (SME, Littleton, Colorado, 2001), Ch. 5, pp W. A. Hustrulid et al., Eds. Littleton: Society for Mining, Metallurgy, and Exploration, Inc., Sjöberg, J. Failure Mechanisms for High Slopes in Hard Rock, in Slope Stability in Surface Mining (SME, Littleton, Colorado, 2001), Ch. 7, pp W. A. Hustrulid et al., Eds. Littleton: Society for Mining, Metallurgy, and Exploration, Inc., Sjöberg, J., and U. Norström. Slope Stability at Aitik, in Slope Stability in Surface Mining (SME, Littleton, Colorado, 2001), Ch. 22, pp W. A. Hustrulid et al., Eds. Littleton: Society for Mining, Metallurgy, and Exploration, Inc., Sjöberg, J., J. C. Sharp and D. J. Malorey. Slope Stability at Aznalcóllar, in Slope Stability in Surface Mining (SME, Littleton, Colorado, 2001), Ch. 21, pp W. A. Hustrulid et al., Eds. Littleton: Society for Mining, Metallurgy, and Exploration, Inc., Norström, U., and J. Sjöberg. Släntövervakning i dagbrott (in Swedish), in Proceedings, Föredrag vid MätKart 2000 (Kiruna, May 2000), SKMF.

7 Page 7 of 8 Sjöberg, J. Analysis of the Aznalcollar Pit Slope Failures A Case Study, in Proceedings, FLAC and Numerical Modeling in Geomechanics (Minneapolis, September 1999), pp C. Detournay and R. Hart, Eds. Rotterdam: Balkema, Sjöberg, J. Analysis of Large Scale Rock Slopes. Doctoral Thesis 1999:01, Luleå University of Technology, Sjöberg, J. Analysis of Failure Mechanisms in High Rock Slopes, in Proceedings, 9th ISRM Congress on Rock Mechanics (Paris, France, 1999), Vol. 1, pp Rotterdam: Balkema, Sjöberg, J. Storskaliga bergslänters stabilitet (in Swedish), in Proceedings, Bergmekanikdag 1999 Föredrag (Stockholm, March 1999), pp Stockholm: SveBeFo, Sjöberg, J., E. Nordlund and E. Olofsson. Analysis of Rock Culverts Under Railroads, in Rock Mechanics for Industry (Proceedings, 37th U.S. Rock Mechanics Symposium, Vail, Colorado, June 1999), Vol. 2, pp B. Amadei et al., Eds. Rotterdam: Balkema, Sjöberg, J., B. Leijon and S. D. McKinnon. Empirical Assessment of Failure Behaviour of Stopes and Sill Pillars in Swedish Cut-and-Fill Mines, in Prediction and Performance in Rock Mechanics & Rock Engineering (Proceedings, EUROCK '96, Turin, September 1996), Vol. 2, pp G. Barla, Ed. Rotterdam: Balkema, Sjöberg, J. Design Methods for Stopes and Sill Pillars with Application to the Zinkgruvan Mine, Central Sweden, Rock Mech. Rock Eng., 26, (1993). Sjöberg, J., B. Leijon and K. Tillman. Mellanskivor och rumstak - Dimensioneringsmetodik i Zinkgruvan (in Swedish), in Proceedings, Bergmekanikdagen 1993 Föredrag (Stockholm, March 1993), pp Stockholm: BeFo, Sjöberg, J. Failure Modes and Pillar Behaviour in the Zinkgruvan Mine, in Rock Mechanics (Proceedings, 33rd U.S. Symposium, Santa Fe, June 1992), pp J. R. Tillerson and W. R. Wawersik, Eds. Rotterdam: Balkema, Sjöberg, J. Stability and Design of Stope Roofs and Sill Pillars in Cut-and-Fill and Open Stope Mining. Licentiate Thesis 1992:16L, Luleå University of Technology, Sjöberg, J. Stabilitet hos mellanskivor och rumstak i Zinkgruvan (in Swedish), in Bidrag till G2000 Seminarium om Bergmekanik, Luleå: MITU, Herdocia, A., and J. Sjöberg. Databanker för bergmekaniska konstruktionselement i svenska gruvor (in Swedish), in Proceedings, Bergmekanikdagen 1990 Föredrag och diskussioner (Stockholm, April 1990), pp Stockholm: BeFo, Herdocia, A., J. Sjöberg and A. Nyström. Rock Mechanics Databank for Construction Elements in Mining, in Proceedings, Rock Mechanics Contributions and Challenges, the 31st U.S. Symposium on Rock Mechanics (Golden, Colorado, June 1990), pp Rotterdam: Balkema, Sjöberg, J., and K. Tillman. Stability of Pillars in the Zinkgruvan Mine A Case Study, in Rock Mechanics Contributions and Challenges (Proceedings, 31st U.S. Symposium on Rock Mechanics,Golden, Colorado, June 1990), pp Rotterdam: Balkema, 1990.

8 Page 8 of 8 Rutqvist, J., and J. Sjöberg. Kaptensmalmens hängvägg. En analys av hängväggsproblematiken i Malmberget (in Swedish). Master's Thesis in Rock Mechanics, Examensarbete 1987:153E, Tekniska Högskolan i Luleå, 1987.