Numerical analysis of progressive fracture and associated behaviour of mine pillars by use of a local degradation model

Institution of Mining and Metallurgy. Transactions. Section A: Mining Technology

Volumn 111, Issue JAN/APR, 2002, Pages

  Fang, Z ^a   Harrison, J P ^b  

^a Royal School of Mines ^*

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; CRACK PROPAGATION; FRACTURE; FRICTION; MATHEMATICAL MODELS; NUMERICAL ANALYSIS; PROBABILITY; STRAIN; STRENGTH OF MATERIALS; STRESS ANALYSIS; STRUCTURAL LOADS; STRUCTURAL MEMBERS;

INTERFACE FRICTION; LOAD-CARRYING CAPABILITY; MACROSCOPIC MECHANICAL BEHAVIOUR; MINE PILLARS; STRAIN ANALYSIS; UNDERGROUND MINING;

MINES;

EID: 0036067620     PISSN: 14749009     EISSN: None     Source Type: Journal    
DOI: 10.1179/mnt.2002.111.1.59     Document Type: Article

References (37)

1. Salamon M. D. G. and Munro A. M. A study of the strength of coal pillars. script J signl S. Afr. Inst. Min. Metall., 68, 1967, 55-67.
2. Madden B. J., Canbulat I. and York G. Current South African coal pillar research. Jl S. Afr. Inst. Min. Metall., 98, no 1, 1998, 7-10.
3. Salamon M. D. G. Strength of coal pillars from back-calculation. In Amadei B. et al. eds Rock mechanics for industry: Proc. 37th U.S. rock mechanics symposium, Vail, Colorado, 1999, 29-36.
4. Obert L. and Duvall W. Rock mechanics and the design of structure in rock (New York, Chichester: Wiley, 1967), 650 p.
5. Bieniawski Z. T. In-situ strength and deformation characteristics of coal. Engng Geol., 2, 1968, 325-40.
6. Bieniawski Z. T. and Van Heerden W. L. The significance of in-situ tests on large rock specimens. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 12, 1975, 101-13.
7. Hedley D. G. F. and Grant F. Stope-and-pillar design for the Elliot Lake uranium mines. Bull. Can. Inst. Min. Metall., 65, 1972, 37-44.
8. Hedley D. G. F., Roxburgh J. W. and Muppalaneni S. N. A case history of rock bursts at Elliot Lake. In Szwilski A. B. and Brawner C. O. eds Proc. 2nd International conference on stability in underground mining (New York: Society of Mining Engineers of AIME, 1984), 210-34.
9. Von Kimmelmann M. R., Hyde B. and Madgwick R. J. The use of computer applications at BCL Limited in planning pillar extraction and design of mining layouts. In Brown E. T. and Hudson J. A. eds Design and performance of underground excavations (London: British Geotechnical Society, 1984), 53-63.
10. Krauland N. and Soder P. E. Determining pillar strength from pillar failure observations. Engng Min. J., 8, 1987, 34-40.
11. Sjoberg J. Failure modes and pillar behaviour in the Zinkgruvan mine. In Tillerson J. A. and Wawersic W. R. eds Proc. 33rd U.S. rock mechanics symposium (Rotterdam: Balkema, 1992), 491-500.
12. Lunder P. J. and Pakalnis R. C. Determination of the strength of hard-rock mine pillars. CIM Bull., 90, no. 1013, 1997, 51-5.
13. Holland C. T. Design of pillars for overburden supports, part II. Min. Congr. J., 48, no. 4, 1962, 66-71.
14. Ozbay M. U., Ryder J. A. and Jager A. J. The design of pillar systems as practised in shallow hard-rock tabular mines in South Africa. Jl S. Afr. Inst. Min. Metall., 95, no. 1, 1995, 7-18.
15. Martin C. D. and Maybee W. G. The strength of hard rock pillars. Int. J. Rock Mech. Min. Sci., 37, 2000, 1239-46.
16. Mokgokong P. S. and Peng S. S. Investigation of pillar failure in the Emaswati coal mine, Swaziland. Min. Sci. Tech., 12, 1991, 113-25.
17. Kaiser P. K. and Tang C. A. Numerical simulation of damage accumulation and seismic energy release during brittle rock failure, part II: rib pillar collapse. Int. J. Rock Mech. Min. Sci., 35, no. 2, 1998, 123-34.
18. Fang Z. and Harrison J. P. Development of a local degradation approach to the modelling of brittle fracture in heterogeneous rocks. Int. J. Rock Mech. Min. Sci. (in press).
19. Bieniawski Z. T. Deformation behaviour of fractured rock under multiaxial compression. In Te'eni M. ed. Structure, solid mechanics and engineering design: Proc. Southampton civil engineering materials conference, Part I (Southampton: The University, 1969), 589-98.
20. Brady B. H. G. and Brown E. T. Rock mechanics for underground mining, 2nd edn (London: Chapman and Hall, 1992), 571 p.
21. Fang Z. and Harrison J. P. A mechanical degradation index for rock. Int. J. Rock Mech. Min. Sci., 38, 8, 2001, 1193-99.
22. Sheorey P. R. Empirical rock failure criteria (Rotterdam: Balkema, 1997), 176 p.
23. Hoek E. and Brown E. T. Underground excavations in rock (London: IMM, 1980), 527 p.
24. Hoek E. and Brown E. T. Practical estimates of rock mass strength. Int. J. Rock Mech. Min. Sci. Geoinech. Abstr., 34, no. 8, 1997, 1165-86.
25. Vermeer P. A. and De Borst R. Non-associated plasticity for soils, concrete and rock. Heron, 29, no. 3, 1984, 5-64.
26. Weibull W. A statistical theory of the strength of materials. Ing. Vetenskaps Akad. Handl., 151, 1939, 5-44.
27. Whittaker B. N., Singh R. N. and Sun G. Rock fracture mechanics (Amsterdam: Elsevier, 1992), 570 p.
28. Weibull W. A statistical distribution function of wide applicability. J. Appl. Mech., 18, 1951, 293-7.
29. Itasca. Fast Lagrangian Analysis of Continua, Version 3.3, Minnesota, 1995.
30. Fang Z. A local degradation approach to the numerical analysis of brittle fracture in heterogeneous rocks. Ph.D. thesis, University of London, 2001.
31. Fang Z. and Harrison J. P. Application of a local degradation model to the analysis of brittle fracture of laboratory scale rock specimens under triaxial conditions. Int. J. Rock Mech. Min. Sci. (in press).
32. Carr F., Martin E. and Gardner B. H. How to eliminate roof and floor failures with yield pillars. Coal Min., 22, no. 1, 1982, 44-51.
33. Wagner H. Determination of the complete load-deformation characteristics of coal pillars. In Advances in rock mechanics: Proc. 3rd International congress of ISRM, II-B (Washington D.C.: National Academy of Sciences, U.S. National Committee for Rock Mechanics, 1974), 1076-81.
34. Pine R. J. and Thin I. G. T. Probabilistic risk assessment in mine pillar design. In Bawden W. F. and Archibald J. F. eds Innovative mine design for the 21st century (Rotterdam: Balkema, 1993), 363-73.
35. Medhurst T. P. Highwall mining: practical estimates of coalseam strength and the design of slender pillars. Trans. Instn Min. Metall. (Sect. A: Min. industry), 108, 1999, A161-71.
36. Madden B. J. A re-assessment of coal-pillar design. Jl S. Afr. Inst. Min. Metall., 91, 1991, 27-37.
37. Iannacchione A. T. Analysis of pillar design practices and techniques for U.S. limestone mines. Trans. Instn Min. Metall. (Sect. A: Min. industry), 108, 1999, A152-60.