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Experimental Techniques for Dynamic Mechanical Characteristics of Rock Materials

암석의 동역학적 특성 규명을 위한 실험기법의 분석

  • 오세욱 (전북대학교 토목/환경/자원에너지공학부(자원에너지공학 전공)) ;
  • 조상호 (전북대학교 토목/환경/자원에너지공학부(자원에너지공학 전공))
  • Received : 2020.09.17
  • Accepted : 2020.09.23
  • Published : 2020.09.30

Abstract

Rock dynamics is a relatively new discipline to study the mechanical behaviors of rock materials (or rock masses) under dynamic loading conditions. Many rock mechanics and rock engineering issues are concerned with the dynamic phenomena such as mining development, civil engineering, earthquake, military science, and various disasters. The significance of rock dynamic researches has been increased in these days. This paper introduces conventional experimental techniques for rock dynamic experimental methods and the particular characteristics of rock dynamic behaviors with several remarkable recent studies.

암석동역학은 동적하중조건하에서의 암반이나 암석의 역학적 거동에 대해 연구하는 학문으로, 자원개발이나 토목, 지진을 비롯한 재난재해, 국방과학 등 다양한 분야에 걸쳐 그 필요성이 증대되고 있다. 본 보고에서는 암석재료에 대한 동적 실험기법들과 동적 하중상태에서 암석이 보이는 역학적 거동 특성에 대한 최근의 연구결과들을 소개하고자 한다.

Keywords

References

  1. 민경조, 오세욱, 전석원, 조상호, 2017, 변형률 게이지 측정원리를 이용한 충격 하중 센서의 개발 및 암석의 동적 압열 인장 실험에 적용, 대한화약발파공학회지, Vol.35, No.3, pp. 15-20.
  2. Asprone, D., E. Cadoni, A. Prota and G. Manfredi, 2009, Dynamic behavior of a Mediterranean natural stone under tensile loading, Int. J. Rock Mech. Min. Sci., Vol. 46, No. 3, pp. 514-520. https://doi.org/10.1016/j.ijrmms.2008.09.010
  3. Cho S.H., Y. Ogata and K. Kaneko, 2003, Strain-rate dependency of the dynamic tensile strength of rock, Int. J. Rock Mech. Min. Sci., Vol. 40, pp. 763-777. https://doi.org/10.1016/S1365-1609(03)00072-8
  4. Cho, S.H., B. Mohanty, Y. Nakamura, Y. Ogata, H. Kitayama and K. Kaneko, 2007, Fracture Processes of Rocks In Dynamic Tensile-splitting Test, Proc. 1st Canada-U.S. Rock Mechanics Symp., Vancouver, Canada, pp. 639-645.
  5. Cho S.H., H.M. Kang, M.S. Kim, H. Eustache, M. Kataoka, Y. Obara, and K. Xia, 2014, Determination of Dynamic Fracture Toughness of Rocks using Straight Notched Disk Bending (SNDB) specimen, Proc. 8th Asian Rock Mechanics Symp., Sapporo, pp. 302.
  6. Dai F., S. Huang, and K. Xia. 2010, Some fundamental issues in dynamic compression and tension tests of rocks using split Hopkinson pressure bar, Rock Mech. Rock Eng., Vol. 43, pp. 657-666. https://doi.org/10.1007/s00603-010-0091-8
  7. Dai F., K. Xia., H. Zheng and X.Y. Wang, 2011, Determination of dynamic rock Mode-I fracture parameters using cracked chevron notched semi-circular bend specimen, Eng. Frac. Mech., Vol. 78, pp. 2633-2644. https://doi.org/10.1016/j.engfracmech.2011.06.022
  8. Dai F. and K. Xia, 2013, Laboratory measurements of the rate dependence of the fracture toughness anisotropy of Barre granite, Int. J. Rock Mech. Min. Sci., Vol. 60, pp. 57-65. https://doi.org/10.1016/j.ijrmms.2012.12.035
  9. ISRM, 2015, The ISRM suggested methods for rock characterization, testing and monitoring: 2007-2014, Switzerland AG, Springer.
  10. Kipp M.E., D.E. Grady and F.P. Chen, 1980, Strain-rate dependent fracture initiation, Int. J. Frac., Vol. 16, No. 5, pp. 471-478. https://doi.org/10.1007/BF00016585
  11. Kolsky, H., 1949, An investigation of mechanical properties of materials at very high rates of loading, Proc. Physics Society of London, Series B62, pp. 676-700. https://doi.org/10.1088/0370-1301/62/11/302
  12. Kumar A., T.S.M. Lok and P. Zhao, 2004, DESIGN OF AN IMPACT STRIKER FOR A SPLIT HOPKINSON PRESSURE BAR, Journal of The Institution of Engineers, Singapore, Vol. 44 Issue 1, pp. 119-130.
  13. Li X., Z. Zhou, T.S. Lok, L. Hong and T. Yin, 2008. Innovative testing technique of rock subjected to coupled static and dynamic loads, Int. J. Rock Mech. Min. Sci., Vol. 45, No. 5, pp. 739-748. https://doi.org/10.1016/j.ijrmms.2007.08.013
  14. Lindholm U.S., 1971, High strain rate tests, techniques of metals research, measurement of mechanical properties, Wiley Interscience, New York.
  15. Liu, K. and Q. Zhang, 2019, Dynamic Behaviors of Sandstone under True Triaxial Confinements: Triaxial Hopkinson Bar Tests, Proc. 53rd Americal Rock Mechanics/Geomechanics Symp., New York.
  16. Min G.J., S.W. Oh, M.S. Kim, J.J. Yoon, S.H. Cho and L.J. Park, 2016, Determination of the dynamic shear strength of granite under confined pressure, Proc. 2nd International Conference on Rock Dynamics and Applications, Suzhou.
  17. Nasser N., 2000, Mechanical Testing and Evaluation, ASM handbook, ASM International, Vol. 8, pp.427-428.
  18. Oh S.W., G.J. Min, S.W. Park, M.S. Kim, Y. Obara and S.H. Cho, 2019, Anisotropic influence of fracture toughness on loading rate dependency for granitic rocks, Eng. Frac. Mech., 221, 106677. https://doi.org/10.1016/j.engfracmech.2019.106677
  19. Ramesh K.T., 2008, High rates and impact experiments. Springer handbook of experimental solid mechanics. Springer, US, pp 929-960.
  20. Reddish, D. J., L.R. Stace, P. Vanichkobchinda, and D.N. Whittles, 2005, Numerical simulation of the dynamic impact breakage testing of rock, Int. J. Rock Mech. Min. Sci., Vol. 42, No. 2, pp. 167-176. https://doi.org/10.1016/j.ijrmms.2004.06.004
  21. Rinehardt J.S., 1965, Dynamic fracture strength of rocks. Proc. 7th Symposium on Rock Mechanics, Pennsylvania, pp. 205-208.
  22. Whittles, D. N., S. Kingman, I. Lowndes, and K. Jackson, 2006, Laboratory and numerical investigation into the characteristics of rock fragmentation, Minerals Engineering, Vol. 19, No. 14, pp. 1418-1429. https://doi.org/10.1016/j.mineng.2006.02.004
  23. Xia, K., M.H.B. Nasseri, B. Mohanty, F. Lu, R. Chen and S.N. Luo, 2008, Effects of microstructures on dynamic compression of Barre granite, Int. J. Rock Mech. Min. Sci., Vol. 45, No. 6, pp. 879-887. https://doi.org/10.1016/j.ijrmms.2007.09.013
  24. Xia. K, and W. Yao, 2015, Dynamic rock tests using split Hopkinson (Kolsky)bar system - A review, Journal of Rock Mechanics and Geotechnical Engineering, Vol. 7, pp. 27-59. https://doi.org/10.1016/j.jrmge.2014.07.008
  25. Yan, D. and G. Lin, 2006, Dynamic properties of concrete in direct tension, Cement and Concrete Research Vol. 36, No.7, pp. 1371-1378. https://doi.org/10.1016/j.cemconres.2006.03.003
  26. Zhao, J., H.B. Li, M.B. Wu and T.J. Li, 1999, Dynamic uniaxial compression tests on a granite, Int. J. Rock Mech. Min. Sci., Vol. 36, No. 2, pp. 273-277. https://doi.org/10.1016/S0148-9062(99)00008-X
  27. Zhang, Q.B., and J. Zhao, 2013, Effect of loading rate on fracture toughness and failure micromechanisms in marble, Eng. Frac. Mech., 102, pp. 288-309. https://doi.org/10.1016/j.engfracmech.2013.02.009
  28. Zhang, Q.B and J. Zhao, 2014, A Review of Dynamic Experimental Techniques and Mechanical Behaviour of Rock Materials, Rock Mech. Rock Eng., Vol. 47, pp. 1411-1478. https://doi.org/10.1007/s00603-013-0463-y
  29. Zhou Y.X., K. Xia, X.B. Li, H.B. Li, G.W. Ma, J. Zhao, Z. Zhou and F. Dai, 2012, Suggested methods for determining the dynamic strength parameters and Mode I fracture toughness of rock materials, Int. J. Rock Mech. Min. Sci., Vol. 49, pp. 105-112. https://doi.org/10.1016/j.ijrmms.2011.10.004