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  • 1. Arvanitidis, Ioannis
    et al.
    Nyberg, Ulf
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Diameterns inverkan på detonationsegenskaperna hos emulsionssprängämne E682 i cylinderprovet2004Report (Other academic)
    Abstract [en]

    Cylinder expansions tests with 4 different diameters ranging from 40 to 100 mm have been conducted on the generic emulsion explosive E682, both pure and with 20 % ANFO content. The work capacity is expressed in terms of the Gurney energy EG, which equals the sum of the kinetic energy of the copper tube and the radial kinetic energy of the gases. The purpose was to study the effect of charge diameter on the explosive's work capacity expressed as the Gurney energy and to supplement earlier work done by Nie (2001). The radial expansion has been measured as well as the velocity of detonation in 11 copper tubes. The effect of ANFO granules were tested by making a mixture of E682 with 20% ANFO. The ANFO used in the present study is Anolit from Dyno Nobel, which basically is the same product as the Prillit A used by Nie. The average density of pure E682 was 1130 kg/m3 and that of E682 with 20% ANFO 1200 kg/m3. The results from the new batch of E682 show similarities with the old batch regarding VOD as function of inverse charge diameter but the trend of the Gurney energy is different from the first experiments carried out by Nie. This could be due to previous tolerance variations in the tube dimensions. The Gurney energy seems to be independent of the charge diameter between 40-100 mm in the new experiments. The measured Gurney energy for pure E682 was 1.77 ± 0.06 MJ/kg and that of E682 with 20% ANFO 1.71 ± 0.07 MJ/kg which is somewhat lower. The use of 20% ANFO in E682 results in the same volume based Gurney energy as for pure E682 however. The overall average is 2.02 ± 0.02 MJ/dm3. The energy utilisation ratio is 0.58 ± 0.03 for pure E682 and 0.53 ± 0.03 for E682 with 20% ANFO. This is slightly lower than for the Titan 6000 series gassed bulk emulsion but higher than for pure ANFO. The detonation pressure decreases with the charge diameter however and this indicates that a smaller hole diameter in rock blasting leads to a lower detonation pressure without loosing work energy when keeping the powder factor constant.

  • 2.
    Carlsson, Torgny
    et al.
    KTH Produktionsteknik.
    Ouchterlony, Finn
    Time-­resolved holographic in­terferometry1992Report (Other academic)
  • 3.
    Chen, Jun Fang
    et al.
    Luleå Tekniska Högskola.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Stephansson, Ove
    Luleå Tekniska Högskola.
    A compre­hensive fracture mechanics model of rock: experimental set up and preliminary results1992Report (Other academic)
  • 4.
    Esen, Sedat
    et al.
    Luleå tekniska universitet.
    Nyberg, Ulf
    Arai, Hiroyuki
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Determination of the energetic characteristics of commercial explosives using the cylinder expansion test technique2005Report (Other academic)
  • 5.
    Hagimori, Kenji
    et al.
    Okimura Corporation.
    Terada, Michinao
    Okimura Corporation.
    Ouchterlony, Finn
    Furukawa, Kohei
    Yamaguchi University.
    Nakagawa, Koji
    Yamaguchi University.
    Using slot drilling to reduce vibrations and damage from tunnel blasting in urban areas1993In: Rock Fragmentation by Blasting: Fragblast-4 / [ed] Hans-Peter Rossmanith, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1993, p. 97-104Conference paper (Refereed)
  • 6.
    Hirose, Sohichi
    et al.
    Okayma University.
    Ouchterlony, Finn
    Dynamic fracture of star cracks1993In: Proceedings of the Boundary Element Technology Conference: BTEC-93, JASCOME , 1993, p. 37-40Conference paper (Refereed)
  • 7.
    Hirose, Sohichi
    et al.
    Okayma University.
    Taniguchi, Takeo
    Okayma University.
    Ouchterlony, Finn
    Nakagawa, Koji
    Yamaguchi University.
    The effect of anisotropy on the KI calibration of ISRM standard fracture toughness specimens1995In: Proceedings: 8. International Congress on Rock Mechanics : Tokyo, Japan, 1995 = Comptes-rendus / 8. Congrès International de Mécanique des Roches = Berichte / 8. Internationaler Kongress über Felsmechanik / International Society for Rock Mechanics / [ed] Toshio Fujii, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1995, Vol. 2, p. 165-168Conference paper (Refereed)
  • 8.
    Johansson, Daniel
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Fragmentation in small-scale confined blasting2011In: International Journal of Mining and Mineral Engineering, ISSN 1754-890X, E-ISSN 1754-8918, Vol. 3, no 1, p. 72-94Article in journal (Refereed)
    Abstract [en]

    Design of sub-level blasting rounds and optimisation has become more important now when the sizes of the blasting rings get larger. Sufficient fragmentation is one of the key factors, and in confined blasting as in sub-level caving, this influences the mobilisation of the blasted ring. Model scale tests have been made to understand the mechanisms of rock breakage and therefore fragmentation under relatively confined conditions. By using the acoustic impedance between the blasted material and the confining debris, a relationship for fragmentation has been found depending on material, specific charge (powder factor) and physical properties of the debris. The results can be comparable with confined blasting in large scale.

  • 9.
    Johansson, Daniel
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Shock wave interactions in rock blasting: the use of short delays to improve fragmentation in model-scale2013In: Rock Mechanics and Rock Engineering, ISSN 0723-2632, E-ISSN 1434-453X, Vol. 46, no 1, p. 1-18Article in journal (Refereed)
    Abstract [en]

    A series of detailed small-scale tests have been made to investigate the use of short delays to promote better fragmentation caused by shock wave interactions. The block design had a size of 650/660 × 205 × 300 mm (L × W × H) and two rows with five Ø 10-mm blastholes in each row. The spacing (S) and burden (B) were 110 and 70 mm, respectively, giving an S/B ratio of 1.6. The results showed no distinct differences or high improvements of the fragmentation when the delays were in the time range of interactions compared with no shock wave interactions. The decrease of x 50 (mean size) was around 20 % at a delay time ~1.1 ms/m burden compared with longer delays like 2 ms/m. A statistical analysis of the results has been made to evaluate the minimum at short delays and it is not significant

  • 10. Johansson, Daniel
    et al.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Edin, J.
    Luleå tekniska universitet.
    Martinsson, L.
    Luleå tekniska universitet.
    Nyberg, Ulf
    Blasting against confinement, fragmentation and compaction in model scale2008In: MassMin 2008: Proceedings of the 5th International Conference and Exhibition on Mass Mining, Lulea, Sweden 9-11 June 2008 / [ed] Håkan Schunnesson; Erling Nordlund, Luleå: Luleå tekniska universitet, 2008, p. 681-690Conference paper (Refereed)
  • 11.
    Johansson, Daniel
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Ouchterlony, Finn
    Nyberg, Ulf
    Blasting against aggregate confinement: fragmentation and swelling in model scale2007In: Fourth EFEE World Conference on Explosives and Blasting: [Vienna Conference Proceedings 2007] / [ed] Peter Moser, European Federation of Explosives Engineers , 2007, p. 13-26Conference paper (Refereed)
    Abstract [en]

    Sub-level caving (SLC) is classified as a mass mining method and there is increasing interest in its application world wide and under a very wide range of geotechnical environments. In terms of flow, the caved rock or debris at the interface first acts as a wave trap, which may reduce the fragmentation. Model scale tests are being made to understand the mechanisms of rock breakage and therefore fragmentation under relatively confined conditions. To minimize geometrical and geological effects, tests were conducted mainly on cylinders of magnetic mortar of size Ø140×280 mm and PETN cord with different strengths was used as explosive in a center hole, giving a specific charge between 0,2 and 2,6 kg/m3. The size distributions of the blasted material and the aggregate as well as the swelling of the cylinders have been measured. For the latter, a freezing-slicing method was developed. The results show that the confinement results in fragmentation being coarser when compared to that from free cylinders, and that the properties of the debris have a strong influence on the fragmentation and the swelling.

  • 12. Johansson, Daniel
    et al.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Nyberg, Ulf
    Modellförsök med sprängning mot rasmassor: inverkan på styckefall och svällning2007In: Bergsprängningskommittén : diskussionsmöte BK 2007: protokoll från Bergsprängningskommitténs diskussionsmöte i Stockholm den 13 mars 2007, 2007, p. 105-120Conference paper (Other academic)
  • 13.
    Johansson, Daniel
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Villegas, Tomas
    Ouchterlony, Finn
    Dynamic blast compaction of some granular materials: small-scale tests and numerical modelling of a mining-related problem2010In: International Journal of Mining and Mineral Engineering, ISSN 1754-890X, E-ISSN 1754-8918, Vol. 2, no 2, p. 79-100Article in journal (Refereed)
    Abstract [en]

    Sub-Level Caving (SLC) is an important mass mining method, involving blasting of ore against granular material in the form of caving debris. The debris compaction due to blasting influences the caving process. Blasting tests were made on cylinders of magnetic mortar placed inside plastic cylinders and confined by packed granular material. By introducing the acoustic impedance between the mortar and the confining granular material, the compaction is found to depend on material, specific charge and physical properties of the debris with statistical analysis. The tests have shown to be a good input for numerical modelling of blast compaction.

  • 14. Lundborg, N.
    et al.
    Ouchterlony, Finn
    Fracture of rock1975In: Tryckluft, ISSN 0041-3739, no 1, p. 28-34Article in journal (Other (popular science, discussion, etc.))
  • 15. Lundqvist, B.
    et al.
    Ouchterlony, Finn
    The measurement of stress waves in percussive drilling: some new ideas1969In: Proceedings, Conference on Applied Physics and Biophysics, 1969Conference paper (Refereed)
  • 16.
    Marklund, P-I
    et al.
    Boliden Mineral AB.
    Sjöberg, Jonny
    Vattenfall Power Consultant.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Nilsson, N.
    Nitro Consult.
    Improved blasting and bench slope design at the Aitik mine2007In: Slope Stability 2007: Proceedings of the International Symposium on Rock Slope Stability in Open Pit Mining and Civil Engineering / [ed] Yves Portvin, Broadway, Nedlands, W.A: Australian Centre for Geomechanics, 2007Conference paper (Refereed)
  • 17.
    Minamide, Hideo
    et al.
    Sato Kogyo Co.
    Kanoh, Yoneji
    Sato Kogyo Co.
    Ouchterlony, Finn
    Nakagawa, Koji
    Sato Kogyo Co.
    Site blasting test on parallel hole cut1993In: Proceedings of the 25th Symposium on Rock Mechanics, Tokyo: JSCE , 1993, p. 391-395Conference paper (Other academic)
  • 18. Nie, Shulin
    et al.
    Ouchterlony, Finn
    Deng, Junhua
    Expansionsarbete av ett emulsionssprängämne i borrhål: mätning och simulering2000Report (Other academic)
    Abstract [sv]

    Att kunna styra sprängning och uppnå önskat resultat fordrar kunskaper om ett sprängämnes detonationsförlopp i borrhålet, dvs kunskaper om hur sprängämnets energi omsätts och överförs till berget. Dock är de kunskaperna inte lätt tillgängliga. T ex saknas det både mätrutiner och beräkningsmodeller för sprängämnens expansionsarbete i borrhål. Forskningen som beskrivs i rapporten omfattar både mätning och simulering. Ett forskningssprängämne har tillverkats och använts vid sprängning i granitblock och i en kalkstenspall. Förutom mätning av detonationshastighet, har LHM tekniken, som utvecklats på SveBeFo, använts för mätning av trycktidförloppet i spränghålet. Detta trycktidförlopp har sedan simulerats och jämförts med mätningarna. Som underlag för simuleringarna har sprängämnets egenskaper mätts och en brinnmodell för sprängämnet tagits fram. Försöken och simuleringarna har gett goda resultat. Rapporten beskriver tillverkning av sprängämnet och mätning av dess egenskaper, framtagning av sprängämnets brinnmodell, utveckling av mätuppställning för tillämpning av LHM tekniken i fältförsök, sprängningsförsök i granitblock och i kalkstenspall, simulering av fältförsöken samt resultaten från alla arbetsmomenten.

  • 19.
    Nyberg, Ulf
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Arvanitidis, Ioannis
    Olsson, Mats
    Ouchterlony, Finn
    Large size cylinder expansion tests on ANFO and gassed bulk emulsion explosives2003In: Explosives and blasting technique: proceedings of the EFEE Second World Conference on Explosives and Blasting Technique / [ed] R. Holmberg, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 2003, p. 181-191Conference paper (Refereed)
  • 20.
    Nyberg, Ulf
    et al.
    SveBeFo.
    Arvanitidis, Ioannis
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Olsson, Mats
    Cylinder expansion tests on reference explosives from production2002Report (Other academic)
  • 21. Nyberg, Ulf
    et al.
    Esen, Sedat
    Luleå tekniska universitet.
    Bergman, Peter
    Boliden Mineral AB.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Uppföljning av styckefallet i salva 4141-2 i Aitikgruvan2006Report (Other academic)
  • 22.
    Nyberg, Ulf
    et al.
    SveBeFo.
    Fjellborg, Stig
    Olsson, Mats
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering.
    Ouchterlony, Finn
    Bedömning av sprängskador i ortkontur: vibrationsmätningar, skadeprognoser och sprickkartering i magnetitmalm och gråberg2000Report (Other academic)
  • 23.
    Nyberg, Ulf
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Olsson, Mats
    Ouchterlony, Finn
    Bestämning av Gurney- och detonationsenergin för emulsionssprängämnen med hjälp av cylinderförsök2009Report (Other academic)
    Abstract [en]

    Nine cylinder tests for emulsion explosives in expanding Ø100/110 mm copper tubes are reported. The explosive recipe for pure emulsion respectively for blend of ANFO/AN-prills was formulated specifically for Swebrec:s test program. The primary goal was to verify earlier determinations of the explosive energy. In addition, recordings from streak camera and data from contact pins was evaluated for copper tubes 350 mm long and Ø60/72 mm filled with FOX12/TNT. The latter was cooperation between FOI- Swedish Defence Research Agency and Swebrec- Swedish Blasting Research Centre.The Gurney energy was calculated when the expansion velocity was almost constant i.e. at a volume of the explosives gases 7-8 times the original explosive volume. Expansion data for each explosive were fitted to the JWL- equation with help of a Matlab routine and the estimated JWL-parameters were used to calculate the detonation energy.Our conclusions, based on the measured data with Ø100/110 mm tubes are that there is no significant difference in the Gurney energy for the three explosives. The detonation energy increases somewhat with addition of AN/AN-prills, but the difference is small compared to the data scatter. This was basically the same results as for the earlier tests with similar emulsion explosives.The aim of the separate technique study with FOX12/TNT was to verify the contact pin data against streak camera data for two tests. The comparison shows that contact pin radial velocity data for the two shots agree well and that the streak recordings agree fairly well. The comparison of the two techniques shows that streak recordings give a 3-7 % lower radial velocity after approximately 30 μs. The two techniques can be a complement to each other.

  • 24. Olsson, Mats
    et al.
    Bergqvist, Ingvar
    Ouchterlony, Finn
    SveBeFo.
    Stötvågens och gasens inverkan på sprickbildning vid skonsam sprängning2002Report (Other academic)
  • 25. Olsson, Mats
    et al.
    Moser, Peter
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Grasedieck, A.
    Comparison of the blast fragmentation from lab-scale and full-scale tests at Bråarp2003In: Explosives and blasting technique: proceedings of the EFEE Second World Conference on Explosives and Blasting Technique / [ed] R. Holmberg, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 2003, p. 449-458Conference paper (Refereed)
  • 26. Olsson, Mats
    et al.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Ny skadezonformel för skonsam sprängning2003Report (Other academic)
    Abstract [en]

    Since many years a table is used in Sweden for the judgement of blast damage caused during blasting. Commonly used explosives for such work are listed in order of their equivalent linear charge concentration in terms of kg Dynamex per metre. The table suffers from many shortcomings and is only verified for very few explosives under specific circumstances. A clear definition of damage is lacking. Furthermore it does not take in consideration the influence of blasthole pattern, scatter in initiation and coupling ratio but has been a practical tool to design smooth blasting. So there is a strong demand of a new table. Since a couple of years there has been an intensive research of how cracks are caused by blasting at SveBeFo. A large number of holes have been blasted and the cracks in the remaining rock have been examined. Coupling ratio, spacing, water in the holes, scatter in the initiation and the influence of different explosives on crack lengths are some of the examined factors. With the knowledge of the effects of these factors a new formula has been proposed. The new formula emanates from our measured crack lengths in granite. Compensation factors for decoupling, spacing, initiation, water in holes and the rock are included in the formula. One important factor included in the formula is the variation of the detonation velocity due to decoupling in wet or dry holes. The formula and how it affects planning of smooth blasting has to be tested in different field conditions. Plans for such tests are currently under discussion.

  • 27. Olsson, Mats
    et al.
    Svahn, Victoria
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Bergqvist, Ingvar
    Fragmentering i bergtäkter2003Report (Other academic)
  • 28. Olsson, Mats
    et al.
    Svärd, Johan
    Orica.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Sprängskador från strängemulsion: fältförsök och förslag till skadezonstabell som innehåller samtidig upptändning2008Report (Other (popular science, discussion, etc.))
  • 29.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    A common form for fragment size distributions from blasting and a derivation of a generalized Kuznetsov's x50-equation2009In: Rock Fragmentation by Blasting: Proceedings of the 9th International Symposium on Rock Fragmentation by Blasting - Fragblast 9, Sept. 2009, Granada Spain / [ed] José A. Sanchidrián Blanco, Boca raton, Fla.: CRC Press, 2009, p. 199-208Conference paper (Refereed)
    Abstract [en]

    A common form for fragment size distributions from blasting is derived from dimensional analysis. When gravity is neglected and the fragment shape is constant, one dimensionless parameter, Π s, remains. If the size distribution uses the quantities x/x max and x 50/x max the dependence on Π s becomes implicit. The Swebrec function has this preferred form. Π s depends essentially on specific charge, explosive energy, burden and rock strength and in a way, which reminds of the x 50-prediction equation of the Kuz-Ram model. A generalization of the x 50-equation is derived, which depends on whether the blasting is 2D or 3D, on the type of loading and on the material model. Test blast results are used to make the appropriate choice. One consequence is that the q-dependence of the x 50-equation changes with the way in which the blasting is done. Another is that the dependence of the Kuz-Ram uniformity index n on geometry only is questionable

  • 30. Ouchterlony, Finn
    A core bend specimen with chevron edge notch for fracture toughness measurements1986In: Rock mechanics : key to energy production: proceedings of the 27th U.S. Symposium on Rock Mechanics held in Tuscaloosa, Alabama 1986 / [ed] Howard L. Hartman, Littleton, Colo: Society for Mining, Metalurgy and Exploration, 1986, p. 177-184Conference paper (Refereed)
  • 31. Ouchterlony, Finn
    A distributed damage approach to combined bending and axial loading of rock beams1983In: Mechanical Behaviour of Materials IV: Proceedings of the Fourth International Conferende on Mech Behaviour of Materials, ICM 4 / [ed] Janne Carlsson; Nils-Gunnar Ohlson, Oxford: Elsevier, 1983, Vol. 2, p. 934‑949-Conference paper (Refereed)
  • 32. Ouchterlony, Finn
    A presentation of the ISRM suggested methods for determining the fracture toughness of rock material1987In: Proceedings: 6. International Congress on Rock Mechanics : Montréal, Canada, 1987 = Comptes-rendus / 6. Congrès International de Mécanique des Roches = Berichte / 6. Internationaler Kongress über Felsmechanik / International Society for Rock Mechanics / [ed] Gerhard Herget; S Vongpaisal, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1987, Vol. 2, p. 1181-1186Conference paper (Refereed)
  • 33. Ouchterlony, Finn
    A simple r‑curve approach to fracture toughness testing of rock1982In: Issues in rock mechanics: proceedings / twenty-third Symposium on Rock Mechanics, the University of California, Berkeley, California, August 25-27, 1982 / [ed] Richard E. Goodman; Francois E. Heutze, New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical and Petroleum Engineers , 1982, p. 515‑522-Conference paper (Refereed)
  • 34. Ouchterlony, Finn
    Analysis of cracks related to rock fragmentation1983In: Rock fracture mechanics, Wien: Encyclopedia of Global Archaeology/Springer Verlag, 1983, p. 31-67Chapter in book (Other academic)
  • 35.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Bend it like Beckham or a wide range yet simple fragment size distribution for blasted and crushed rock2003Report (Other academic)
  • 36. Ouchterlony, Finn
    Borrhålsavvikelse vid sprängning av slänter: erfarenheter från inmätningar i Södertälje2002Report (Other academic)
  • 37. Ouchterlony, Finn
    Borrhålsavvikelser vid sprängning av slänter: Erfarenheter från inmätningar i Södertälje2000In: Diskussionsmöte BK 2000, Bergsprängningskommittén , 2000, p. 193-216Conference paper (Other academic)
  • 38. Ouchterlony, Finn
    Development of blasting techniques creates new possibilities1994In: Proceedings, Blasting Seminars at Lanzarote Jan 10-17 and at Gällivare April 26-28, 1994, Nitro Nobel , 1994, Vol. Paper 3Conference paper (Other academic)
  • 39. Ouchterlony, Finn
    Drill hole deviations in a road cut perimeter: experiences from measurements at Södertälje2002In: Rock Fragmentation by Blasting: the Seventh International Symposium on Rock Fragmentation by Blasting - FRAGBLAST-7 / [ed] Wang Xuguang, Bejing: Metallurgical Industry Press , 2002, p. 341-354Conference paper (Refereed)
  • 40. Ouchterlony, Finn
    Evaluation formulas for the fracture toughness testing of rock with standard core specimens1986In: Proceedings of the 1986 SEM Spring Conference on Experimental MechanicsMechanics: June 8 - 13, New Orleans, Bethel, Conn.: Society for Experimental Mechanics , 1986, p. 115-124Conference paper (Refereed)
  • 41. Ouchterlony, Finn
    Extension of the compliance and stress intensity formulas for the single edge crack round bar in bending1981In: Fracture mechanics methods for ceramics, rocks, and concrete, Philadelphia, Pa.: American Society for Testing and Materials , 1981, p. 237-256Chapter in book (Other academic)
  • 42.
    Ouchterlony, Finn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Forskningsprogram om fragmentering2006Report (Other academic)
  • 43. Ouchterlony, Finn
    Fracture analysis of cracks related to rock fragmentation1978Doctoral thesis, comprehensive summary (Other academic)
  • 44. Ouchterlony, Finn
    Fracture mechanics and rock fragmentation1976In: Report from LKAB Seminar on Sublevel Stoping: Nov 17‑18, 1976, LKAB , 1976Conference paper (Other academic)
  • 45. Ouchterlony, Finn
    Fracture mechanics applied to rock blasting1974In: Advances in rock mechanics: proceedings of the Third Congress of the International Society for Rock Mechanics, Denver, Colorado, September 1-7, 1974, Washington, DC: National Academy of Sciences , 1974, Vol. 2B, p. 1377-1383Conference paper (Refereed)
  • 46. Ouchterlony, Finn
    Fracture mechanics aspects on the crack growth from a bore hole: paper presented at Rock Mechanics Meeting in Stockholm, Swedish Rock Engineering Research1973In: Bergmekanikdag: föredrag vid Bergmekaniskt diskussionsmöte i Stockholm, Stiftelsen bergteknisk forskning - Befo , 1973, p. 311‑339-Conference paper (Other academic)
  • 47. Ouchterlony, Finn
    Fracture toughness testing of rock1983In: Rock fracture mechanics, Wien: Encyclopedia of Global Archaeology/Springer Verlag, 1983, p. 69-150Chapter in book (Other academic)
  • 48. Ouchterlony, Finn
    Fracture toughness testing of rock cores1980In: Bergmekanikdag: föredrag vid Bergmekaniskt diskussionsmöte i Stockholm, Stiftelsen bergteknisk forskning - Befo , 1980, p. 49-66Conference paper (Other academic)
  • 49. Ouchterlony, Finn
    Fracture toughness testing of rock with core based speci­mens1990In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 35, no 1/2/3, p. 351-366Article in journal (Refereed)
  • 50. Ouchterlony, Finn
    Fracture toughness testing of rock with core based specimens: the development of an ISRM standard1989In: Fracture Toughness and Fracture Energy: Test Methods for Concrete and Rock / [ed] Hirozo Mihashi; Hideaki Takahashi; Folker H Wittman, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1989, p. 231-251Conference paper (Refereed)
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