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Geotechnical and Geological Engineering

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16.01.2020 | Original Paper

A Simple Time-Dependent Chart of Extension Fracture Initiation within Brittle Homogenous and Heterogeneous Rock Pillars in Hard Rock Mining

verfasst von: Fhatuwani Sengani

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 3/2020

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Abstract

A simple empirical time-dependent chart of extension fracture initiation is described. The chart was developed using simple borehole periscope observations within the rib pillars, focusing on monitoring the initiations of extension fracture. Nevertheless, the periscope was conducted time to time for the duration of a month, within brittle homogenous and heterogeneous rock pillars (rib pillar). The chart is suitable for predicting extension fracture initiations and extends of fracturing as time progress, predicting the allowable time to install an effective support system and be able to estimate the stability of the rib pillars within a brittle homogenous and heterogeneous rib pillars in a high stress environment. Two practical application and examples of the chart are described. These are firstly, an alternative way of estimating the rib pillar strength and secondly, predicting the maximum allowable time for an effective support installation along the rib pillar.

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Adams GR, Jager AJ (1980) Petroscopic observations of rock fracturing ahead of stope faces in deep-level gold mines. J S Afr Inst Min Metall 80:204–209

Andersson JC, Martin CD, Stille H (2009) The Aspo pillar stability experiment: part II—rock mass response to coupled excavation induced and thermal-induced stresses. Int J Rock Mech Min Sci 46:879–895

Andrews P, Sengani F (2017) Ameliorating the strainburst risk in a mechanised deep level gold mine: the South Deep experience. In: Strainburst in mining seminar 10th October 2017 Sudbury Canada

Andriev GE (1995) Brittle failure of rock materials. A. A. Balkema, Rotterdam

Ashby MF, Hallam D (1986) The failure of brittle solids containing small cracks under compressive stress. Acta Metall 34:497–510

Barton CC (1983) Systematic jointing in the Cardium Sandstone along the Bow River, Alberta, Canada. Ph.D. Thesis, Yale University, pp 200–301

Bates RL, Jackson JA (1980) Glossary of geology, 2nd edn. American Geological Institute, Falls Church

Borg IY, Maxwell JC (1956) Interpretation of fabrics of experimentally deformed sands. Am J Sci 254:71–81

Brace WF (1960) An extension of the Griffith theory of fracture to rocks. J Geophys Res 65:3477–3480

Brace WF (1964) Brittle fracture of rocks. In: Judd WR (ed) State of stress in the earth’s crust. American Elsevier, New York, pp 111–180

Brace WF, Byerlee JD (1968) Recent experimental studies of brittle fracture of rocks. In: Fairhurst CL (eds) Proceedings of the 8th symposium on rock mechanics. Failure and Breakaye of Rock, pp 58–8 l

Brace WF, Paulding B, Scholz C (1966) Dilatancy in the fracture of crystalline rocks. J Geophys Res 71:3939–3953

Brady BHG, Brown ET (2004) Rock mechanics for underground mining, 3rd edn. Kluwer, Dordrecht, p 628

Cai M, Kaiser PK (2018) Rockburst support. In: Rockburst phenomenon and support characteristics. MIRARCO—Mining Innovation, Laurentian University, Sudbury, Ontario, Canada

Cai M, Kaiser PK, Martin CD (1998) A tensile model for the interpretation of microseismic events near underground openings. Pure appl Geophys 153:67–92

Cho N, Martin CD, Sego DS (2007) A clumped particle model for rock. Int J Rock Mech Min Sci 44:997–1010

Clausing DP (1959) Comparison of Griffith’s theory with Mohr’s failure criteria. Colo Sch Mines 54:255–296

Clotte DR, Clotte PAG, Cooke NGW, Jager AJ, White AJA (1972–1973) The nature of the fractures zone in gold mines as revealed by diamond core drilling. In: Association of mine managers, papers, and discussions. Johannesburg

De Kock WP (1964) The geology and economic significance of West Wits line. In: Haughton SH (ed) Geology of some ore deposits in Southern Africa. Geological Society of South Africa, Johannesburg

Depatment of Mineral Resources (DMR) (2018) Annual incidents report. Pretoria, South Africa

Dyer JR (1983) Jointing in sandstones, Arches National Park, Utah. Ph.D. Dissertation, Stanford University, Stanford, p 202

Earon R, Olofsson B (2018) Hydraulic heterogeneity and its impact on kinematic porosity in Swedish coastal terrains. Eng Geol 245:61–71

Erdogan F, Sih GC (1963) On the crack extension in plates under plane loading and transverse shear. J Basic Eng 85:519–525

Fairhurst C (1964) On the validity of the “Brazilian” test for brittle materials. Int J Rock Mech Min Sci Geomech Abstr 1(4):535–546

Fairhurst C (1972 and Updated in 2004) Fundamental considerations relating to the strength of rock. In: Colloquium on rock fracture. Bochum, Germany: Ruhr Universitat, http://www.itascacg.com

Gallagher JJ, Friedman M, Handin J, Sowers GM (1974) Experimental studies relating to microfracture in sandstone. Tectonophysics 21:203–247

Germanovich JN, Dyskin AV (1988) A model of brittle failure for material with cracks in uniaxial loading. Mech Solids 23:111–123

Griffith AA (1921) The phenomena of rupture and flow in solids. Philos Trans R Soc Lond (Ser A) 221:163–198

Griffith AA (1924) Theory of rupture. In: Proceedings of the 1st international congress of applied mechanics. Tech. Boekhandel en Drukkerij J Walter Jr, Delft, pp 55–63

Hallbauer DK, Wagner H, Cook NGW (1973) Some observations concerning the microscopic and mechanical behaviour of quartzite specimens in stiff, triaxial compression tests. Int J Rock Mech Min Sci Geomech Abstr 10:713–726

Hamm SY, Kim M, Cheong JY, Kim JY, Son M, Kim TW (2007) Relationship between hydraulic conductivity and fracture properties estimated from packer tests and borehole data in a fractured granite. Eng Geol 92:73–87

Handin J, Heard HC, Magouirk JN (1967) Effects of the intermediate principal stress on the failure of limestone, dolomite and glass at different temperatures and strain rates. J Geophys Res 72:611–640

Hedley DGF, Grant F (1972) Stope and pillar design at the Elliot Lake uranium mines. CIM Bull 65(723):37–44

Hoek E (1964) Rock fracture around mine excavations. In: CSIR rock mechanics special report no. 38. International Conference on Strata Control and Rock Mechanics, New York

Hoek E (1965) Rock fracture under static stress conditions. In: Councilfor Scientific and Industrial Research Report MEG. Pretoria, South Africa, p 383

Hoek E, Brown ET (1980) Underground excavations in rock. IMM, London, p 527

Hoek E, Martin CD (2014) Fracture initiation and propagation in intact rocke—a review. J Rock Mech Geotech Eng 6:287–300

Huang N, Jiang Y, Liu R, Li B (2017) Estimation of permeability of 3-D discrete fracture networks: an alternative possibility based on trace map analysis. Eng Geol 226:12–19

Hudyma M (1988) Development of empirical rib pillar failure criterion for open stopemining. MASc Thesis, Department of Mining and Mineral Processing, University of British Columbia, Vancouver

Inglis CE (1913) Stresses in a plate due to the presence of cracks and sharp corners. Institution of Naval Architects, London, pp 219–230

Jaeger JC, Cook NGW, Zimmerman RW (2007) Fundamentals of rock mechanics. Blackwell, Victoria

Kemeny JM, Cook NGW (1987) Crack models for the failure of rock under compression. In: Desai CS, Krempl E, Kiousis PD, Kundu T (eds) Proceedings of the 2nd international conference constitutive laws for engineering materials, theory and applications, vol 1. Elsevier Science Publishing Co., London, pp 879–887

King RG, Jager AJ, Roberts MKCR (1989) Rock mechanics aspects of stoping without back area support. COMRO Res. Rep, Johannesburg

Krauland N (1970) The behaviour of a prototype and a model mine tunnel. In: South African tunnelling conference. The Technology and Potential of Tunnelling, Johannesburg

Krauland N, Soder PE (1987) Determining pillar strength from pillar failure observations. Eng Min J 8:34–40

Kuijpers J (2000) Fracturing around highly stressed excavations in brittle rock. J South Afr Inst Min Metall 100:325–331

Kwásniewski M, Takahashi M (2010) Strain-based failure criteria for rocks: state of the art and recent advances. In: Rock mechanics in civil and environmental engineering—Proceedings of the European rock mechanics symposium. EUROCK, pp 45–56

Lawn BR, Wilshaw TR (1975) Fracture of brittle solids. Cambridge University Press, Cambridge, p 204

Lee CH, Deng BW, Chang JL (1995) A continuum approach for estimating permeability in naturally fractured rocks. Eng Geol 39:71–85. https://doi.org/10.1016/0013-7952(94)00064-9 CrossRef

Li D, Wong LNY (2013) The Brazilian disc test for rock mechanics applications. Rock Mech Rock Eng 46:269–287

Lim SS, Martin CD (2010) Core disking and its relationship with stress magnitude for Lac Du Bonnet granite. Int J Rock Mech Min Sci 47:254–264

Louchnikov V (2011) Simple calibration of the extension strain criterion for its use in numerical modelling. In: Potvin Y (ed) Strategic vs tactical approaches in mining. Australian Centre for Geomechanics, Perth, pp 85–96

Lunder P (1994) Hard rock pillar strength estimation: an applied empirical approach. MASc Thesis, University of British Columbia, Vancouver, British Columbia, Canada, p 166

Lunder P, Pakalnis R (1997) Determination of the strength of hard rock mine pillars. CIM Bull 90(1013):51–55

Martin CD, Chandler NA (1994) The progressive fracture of Lac du Bonnet granite. Int J Rock Mech Min Sci Geomech Abstr 31:643–659

Martin CD, Read RS, Martino JB (1997) Observations of brittle failure around a circular test tunnel. Int J Rock Mech Min Sci 34:1065–1073

McCarthy T (2006) The Witwatersrand Supergroup. In: The geology of South Africa. Geological Society of South Africa/Council for Geoscience, Johannesburg, pp 155–186

McClintock FA, Walsh J (1962) Friction on Griffith cracks in rocks under pressure. In: Proceedings of the 4th US national congress on applied mechanics. Berkeley, pp 1015–1021

Murrell SAF (1958) The strength of coal under triaxial compression. In: Mechanical properties of non-metallic Brittle Materials. Butterworth Scientific Publications, pp 123–145

Murrell SAF (1963) Criterion for brittle fracture of rocks and concrete under triaxial stress and the effect of pore pressure on the criterion. Pergamon Press, Oxford

Murrell SAF (1965) The effect of triaxial stress systems on the strength of rocks at atmospheric temperatures. Geophys J 10:231–281

National Research Council (1996) Rock fractures and fluid flow: contemporary understanding and applications. The National Academies Press, Washington, DC

Ndlovu X (2006) Three dimensional analyses of stress and strain distributions around bord and pillar geometries. M.Sc. Eng Dissertation, University of the Witwatersrand

Ndlovu X, Stacey TR (2007) Observations and analyses of roof guttering in a coal mine. J S Afr Inst Min Metall 107:477–492

Nelson RA (1985) Geologic analysis of naturally fractured reservoirs. Gulf Publishing, Houston, p 320

Nicksiar M, Martin CD (2012) Evaluation of methods for determining crack initiation in compression tests on low-porosity rocks. Rock Mech Rock Eng 45:607–617

Orowan E (1949) Fracture and strength of solids. Rep Prog Phys Phys Soc 12:182–232

Pan JB, Lee CC, Lee CH, Yeh HF, Lin HI (2010) Application of fracture network model with crack permeability tensor on flow and transport in fractured rock. Eng Geol 116:166–177

Pang SS, Goldsmith W (1990) Investigation of crack formation during loading of brittle rock. Rock Mech Rock Eng 23:53–63

Paterson MS, Wong TF (2005) Experimental rock deformationethe brittlefield, 2nd edn. Springer, New York

Peng SS, Johnson AM (1972) Crack growth and faulting in cylindrical specimens of Chelmsford granite. Int J Rock Mech Min Sci Geomech Abstr 9:37–86

Pollard DD, Aydin A (1988) Progress in understanding jointing over the past century. Geol Soc Am Bull 100:1181–1204

Pretorius DA (1964) The geology of the Central Rand goldfields. In: Haughton SH (ed) The geology of some ore deposits in Southern Africa, vol 1. Geological Society of South Africa, Johannesburg, pp 63–108

Pretorius DA (1986) The Witwatersrand Basin: surface and subsurface geology and structure (map). In: Anhaeusser CR, Maske S (eds) Mineral deposits of Southern Africa, vol 1. Geological Society of South Africa, Johannesburg

Reeves DM, Parashar R, Pohll G, Carroll R, Badger T, Willoughby K (2013) The use of discrete fracture network simulations in the design of horizontal hillslope drainage networks in fractured rock. Eng Geol 163:132–143

Ren XW, Santamarina JC (2018) The hydraulic conductivity of sediments: a pore size perspective. Eng Geol 233:48–54

Ren F, Ma G, Fu G, Zhang K (2015) Investigation of the permeability anisotropy of 2D fractured rock masses. Eng Geol 196:171–182

Ren F, Ma G, Fan L, Wang Y, Zhu H (2017) Equivalent discrete fracture networks for modelling fluid flow in highly fractured rock mass. Eng Geol 229:21–30

Rummel F (1971) Uniaxial compression tests on right angular rock specimens with central holes Rock Fracture. In: Proceedings of the international symposium on rock mechanics, vol 2. Nancy, pp 90–101

Ryder JA, Jager AJ (2002) A textbook on rock mechanics for hard rock mines. In: SIMRAC, Safety in Mines Research Advisory Committee, South Africa

Salamon MDG (1970) Stability, instability and the design of mine workings. Int J Rock Mech Min Sci 7:613–631

Scholz CH (1968) Microfracturing and the inelastic deformation of rock in compression. J Geophys Res 73:1417–1432

Segall P, Pollard DD (1983a) Joint formation in granitic rock of the Sierra Nevada. Geol Soc Am Bull 94:563–575

Segall P, Pollard DD (1983b) Nucleation and growth of strike-slip faults in granite. J Geophys Res 88:555–568

Sengani F (2018a) Trials of the Garford hybrid dynamic bolt reinforcement system at a deep level gold mine in South Africa. J South Afr Inst Min Metall 118:289–296

Sengani F (2018b) The performance of bolt-reinforced and shotcreted in-stope pillar in rockburst-prone areas. Int J Min Geo-Eng 52:105–117

Sengani F, Amponsah-Dacosta F (2018) The application of the face-perpendicular preconditioning technique for de-stressing seismically active geological structures. Min Technol 12:241–255

Sengani F, Kataka MO (2017) A comparison of the effectiveness of the roof-bolter and standard drill rig for the installation of long anchors in hard-rock mines. In: Proceedings of 3rd young professional’s conference, Innovation Hub, Pretoria, 9–10 March 2017. Southern African Institute of Mining and Metallurgy, Johannesburg

Sengani F, Zvarivadza T (2017) Review of pre-conditioning practice in mechanized deep to ultra-deep level gold mining. In: 26th International symposium on mine planning and equipment selection. Lulea University, Sweden, pp 29–31

Sengani F, Zvarivadza T (2018a) Borehole periscope observations of rock fracturing ahead of the preconditioned mining faces in a deep level gold mine. In: 1st International conference on advances in rock mechanics. International Society for Rock Mechanics and Rock Engineering, TuniRock

Sengani F, Zvarivadza T (2018b) Yielding support systems in deep to ultra-deep level gold mining. In: 1st International conference on advances in rock mechanics. International Society for Rock Mechanics and Rock Engineering, TuniRock

Sengani F, Zvarivadza T (2018c) The use of face perpendicular preconditioning technique to destress a dyke located 60 m ahead of mining faces. In: Geomechanics and geodynamics of rock masses, volume 1: proceedings of the 2018 European rock mechanics symposium. CRC Press, p 417

Sjöberg J (1992) Failure modes and pillar behaviour in the Zinkgruvan mine. In: Tillerson JR, Wawersik WR (eds) Proceedings of the 33rd US Rock mechanics symposium, 3–5 June. A. A. Balkema, Santa Fe, New Mexico, Rotterdam, pp 491–500

Stacey TR (1981) A simple extension strain criterion for fracture of brittle rock. In: International journal of rock mechanics and mining sciences, 18

Stacey TR (1982) Contribution to the mechanism of core discing. J S Afr Inst Min Metall 82:269–274

Stacey TR (1989) Boring in massive rocks—rock fracture problems. In: Proceedings of the seminar on mechanised underground excavation. South African National Council on Tunnelling, pp 87–90

Stacey TR, Harte ND (1989) Deep level raise boring—prediction of rock problems. In: Maury V, Fourmaintraux D, Balkema AA (eds) Proceedings of the international symposium rock at great depth, vol 2. pp 583–588

Stacey TR, Yathavan K (2003) Examples of fracturing at very low stress levels. In: Proc. 10th Int. Cong. Int. Soc. Rock Mech., Sandton, S. Afr. Nat. Inst. For Rock Engng and S. Afr. Inst. Min. Metall., vol 2, pp 1155–1159

Stacey TR, Yu X, Armstrong R, Keyter GJ (2003) New slope stability considerations for deep open pit mines. J S Afr Inst Min Metall 103:373–389

Stacey TR, Ortlepp WD, Ndlovu X (2007) Dynamic rock failures due to ‘‘high’’ stress at shallow depth. In: Proceedings of the 4th international seminar on deep and high stress mining. Australian Centre for Geomechanics, Perth, pp 193–204

Steffanizzi S, Barla G, Kaiser PK (2007) Numerical modelling of strain driven fractures around tunnels in layered rock masses. In: Ribeiro, Olalla, Grossmann (eds) 11th Congress of the International Society for Rock Mechanics. Taylor and Francis Group, London, pp 971–974

Toper AZ (2003) The effect of blasting on the rockmass for designing the most effective preconditioning blasts in deep level gold mines [Ph.D. Thesis]. University of the Witwatersrand, Johannesburg

van Aswegen G, Stander M (2012) Origins of some fractures around tabular stopes in deep South African mines. J S Afr Inst Min Metall 112:729–735

Villaescusa E (2014) Geotechnical design for sublevel open stoping. CRC Press, Boca Raton

Von Kimmelmann MR, Hyde B, Madgwick R J (1984) The use of computer applications at BCL Limited in planning pillar extraction and the design of mining layouts. In: Brown ET, Hudson JA (eds) Proceedings of the ISRM international symposium on design and performance of underground excavations, Cambridge, 3–6 September, pp 53–63

Waldeck HG (1979) The design and support of large underground chambers at depth in the mines of the Gold Fields Group of South Africa. In: Proceedings of the 4th Congress International Society for Rock Mechanics. Montreux, pp 565–571

Watson BP, Pretorius W, Mpunzi P, du Plooy M, Matthysen K, Kuijpers JS (2014) Design and positive financial impact of crush pillars on mechanized deep-level mining at South Deep Gold Mine. J S Afr Inst Min Metall 114:863–865

Wei L, Liu Q, Liu X (2018) An improved crack initiation stress criterion for brittle rocks under confining stress. In: IOP Conference series: earth and environmental science, pp 1–16

Wesseloo J, Stacey TR (2016) A reconsideration of the extension strain criterion for fracture and failure of rock. Rock Mech Rock Eng 49:4667–4679

Xu C, Fidelibus C, Dowd P, Wang Z, Tian Z (2018) An iterative procedure for the simulation of the steady-state fluid flow in rock fracture networks. Eng Geol 242:160–168

Zhang C, Chen Q, Qin X, Hong B, Meng W, Zhang Q (2017) In-situ stress and fracture characterization of a candidate repository for spent nuclear fuel in Gansu, northwestern China. Eng Geol 231:218–229

Zhao G, Johnson AM (1992) Sequence of deformations recorded in joints and faults, Arches National Park, Utah. J Struct Geol 14:225–236

Zhou S, Zhuang X, Rabczuk T (2018) A phase-field modeling approach of fracture propagation in poroelastic media. Eng Geol 240:189–203

Zvarivadza T, Sengani F (2018a) Calibration of yielding pillar performance in deep level gold mines. In: 1st International conference on advances in rock mechanics. International Society for Rock Mechanics and Rock Engineering, TuniRock

Zvarivadza T, Sengani F (2018b) Evaluation of in-stope pillar failure: a case study of deep to ultra-deep level gold mining in South Africa. In: Proceedings of the 3rd international conference on rock dynamics and applications (RocDyn-3), June 26–27. CRC Press, Trondheim, pp 675–680

Zvarivadza T, Sengani F, Adoko AC (2017) In-stope pillar scaling and fracturing in Southern African deep level gold mining. In: 26th International symposium on mine planning and equipment selection. Luleå University, Sweden, pp 379–388

Titel: A Simple Time-Dependent Chart of Extension Fracture Initiation within Brittle Homogenous and Heterogeneous Rock Pillars in Hard Rock Mining
verfasst von: Fhatuwani Sengani
Publikationsdatum: 16.01.2020
Verlag: Springer International Publishing
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 3/2020
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-020-01188-7

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