지질공학 (The Journal of Engineering Geology)

  • 제7권1호
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  • Pages.53-62
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  • 1997
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  • 1226-5268(pISSN)
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  • 2287-7169(eISSN)
대한지질공학회 (The Korean Society of Engineering Geology)
권호 표지

암석 내의 자연균열과 인공균열의 진행특성

Characteristics of Natural and Experimental Fracture Propagation in Rocks

  • 발행 : 1997.04.01
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초록

암석의 파고역학적 특성은 암반 내의 자연균열들의 분포를 예측하거나 혹은 불연속면을 포함하는 암사면이나 지하구조물의 안정성을 해석하기 위한 중요한 자료로 활용될 수 있다. 본 연구에서는 암석의 파괴역학적의 특성의 차이를 측정하여 암종에 따른 제한적인 분포를 나타내는 자연균열에 대한 연구를 수행하였다. 자연균열과 인공균열의 진행특성을 정성적 및 정량적인 기준에 의하여 분석한 결과, 기원이 다른 균열들은 성장특성에 있어서 뚜렷한 차이를 나타냄을 확인할 수 있다. 따라서, 암석 파괴역학적의 이론을 이용하여 암반 내에 분포하는 균열들의 기원이나 공학적 특성을 예측하기 위해서는 먼저 충분한 지질학적인 이론과 근거가 요구됨을 알 수 있다.

Fracture mechanics properties of rock materials can he applied to predict the distribution of natural fractures in rock masses, and also to assess the safety of rock slopes and underground structures. In this study, rock fracture toughness and other fracture rrechanics properties of sorne lithologies showing apparently rock-property-controlled distribution of natural fractures were measured. Propagation behaviors of natural and experirnental fractures were also characterized both qualitatively and quantitatively, in terns of the propagation types and sorne statistical parameters. It was concluded that the application of fracture mechanics theories to the ge6logic materials should be based on the geological background and evidences.

키워드

참고문헌

  1. Ph. D. Dissertation, Department of Civil Engineering, The University of Texas at Austin Evaluation of fracture mechanics properties and microstructural observations of rock fractures Baek, H.
  2. Rock Engineering v.10 no.1 The shear strength of rock joints in theory and practice Barton, N.;Choubey, V.
  3. Philosophical Transactions of the Royal Society of London, Series A v.221 The phenomena of rupture and flow in solids Griffith, A. A.
  4. Transctions Stratigraphy and diagenesis of Sonora Canyon deep-water sandstone Hamlin, H. S.;Clift, S. J.;Dutton, S. P.
  5. Int. J. Rock Mech. Min. Sci. & Geomech. Abstr v.25 no.2 Suggested methods for determining the fracture toughness of rock ISRM Commission on Testing Methods
  6. Engineering Fracture Mechanics v.21 no.5 A fracture toughness criterion for concrete Jenq, Y. S.;Shah, S. P.
  7. Advanced Fracture Mechanics Kanninen, M. F.;Popelar, C. H.
  8. Int. J. Rock Mech. Min. Sci. & Geornech. Abstr. v.22 no.2 Experimental analysis of crack propagation granite Labuz, J. F.;Shah, S. P.;Dowding, C. H.
  9. Geotechnical Testing Journal, GTJODJ v.8 no.3 A scanning device to quantify joint surface roughness Lam, T. S. K.;Johnston, I. W.
  10. Engineering Fracture Mechanics v.35 no.1;2;3 Fracture toughness testing of rock with core based specimens Ouchterlony, F.
  11. Proceedings of the interational school of physics The mechanics of earthquake rupture : Physics of the earth's interior Rice, J. R.
  12. Materials and Structures v.18 no.106 Determlnation of the fracture energy of mortar and concrete by means of three point bend tests on notched beams RILEM Draft Recommendations
  13. Ann. Rev. Earth Planet. Sci. v.8 Fracture mechanics applied to the earth's crust Rudnicki, J. W.
  14. Experimental Mechanics v.16 no.5 Fracture-toughness testing of limestone Schmidt, R. A.
  15. The Physics and Chemistry of Minerals and Rocks Microcracks in Rock Simmons, G.;Richter, D.
  16. Engineering Fracture Mechanics v.13 no.4 Fracture toughness determination of brittle materials using small to extremely small specimens Szendi-Horvath, G.