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Effects of water on rock fracture properties: Studies of mode I fracture toughness, crack propagation velocity, and consumed energy in calcite-cemented sandstone

  • Maruvanchery, Varun (Underground Construction and Tunneling Engineering, Colorado School of Mines) ;
  • Kim, Eunhye (Underground Construction and Tunneling Engineering, Colorado School of Mines)
  • 투고 : 2018.04.13
  • 심사 : 2018.12.10
  • 발행 : 2019.01.20

초록

Water-induced strength reduction is one of the most critical causes for rock deformation and failure. Understanding the effects of water on the strength, toughness and deformability of rocks are of a great importance in rock fracture mechanics and design of structures in rock. However, only a few studies have been conducted to understand the effects of water on fracture properties such as fracture toughness, crack propagation velocity, consumed energy, and microstructural damage. Thus, in this study, we focused on the understanding of how microscale damages induced by water saturation affect mesoscale mechanical and fracture properties compared with oven dried specimens along three notch orientations-divider, arrester, and short transverse. The mechanical properties of calcite-cemented sandstone were examined using standard uniaxial compressive strength (UCS) and Brazilian tensile strength (BTS) tests. In addition, fracture properties such as fracture toughness, consumed energy and crack propagation velocity were examined with cracked chevron notched Brazilian disk (CCNBD) tests. Digital Image Correlation (DIC), a non-contact optical measurement technique, was used for both strain and crack propagation velocity measurements along the bedding plane orientations. Finally, environmental scanning electron microscope (ESEM) was employed to investigate the microstructural damages produced in calcite-cemented sandstone specimens before and after CCNBD tests. As results, both mechanical and fracture properties reduced significantly when specimens were saturated. The effects of water on fracture properties (fracture toughness and consumed energy) were predominant in divider specimens when compared with arrester and short transverse specimens. Whereas crack propagation velocity was faster in short transverse and slower in arrester, and intermediate in divider specimens. Based on ESEM data, water in the calcite-cemented sandstone induced microstructural damages (microcracks and voids) and increased the strength disparity between cement/matrix and rock forming mineral grains, which in turn reduced the crack propagation resistance of the rock, leading to lower both consumed energy and fracture toughness ($K_{IC}$).

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참고문헌

  1. Anderson, T.L. (2017), Fracture Mechanics: Fundamentals and Applications, CRC press.
  2. ASTM D3967-16 (2016), Standard Test Method for Splitting Tensile Strength of Intact Rock Core Specimens, West Conshohocken, Pennsylvania, U.S.A.
  3. ASTM D4543-08 (2008), Standard Practices for Preparing Rock Core as Cylindrical Test Specimens and Verifying Conformance to Dimensional and Shape Tolerances, West Conshohocken, Pennsylvania, U.S.A.
  4. Behrens, H. and Muller, G. (1995), "An infrared spectroscopic study of hydrogen feldspar (HAlSi3O8)", Mineralog. Mag., 59(1), 15-24. https://doi.org/10.1180/minmag.1995.59.394.02
  5. Chang, S.H., Lee, C.I. and Jeon, S. (2002), "Measurement of rock fracture toughness under modes I and II and mixed-mode conditions by using disc-type specimens", Eng. Geol., 66(1-2), 79-97. https://doi.org/10.1016/S0013-7952(02)00033-9
  6. Costanzo, P., Giese, R. and Lipsicas, M. (1984), "Static and dynamic structure of water in hydrated kaolinites; I, The static structure", Clay. Clay Miner., 32(5), 419-128. https://doi.org/10.1346/CCMN.1984.0320511
  7. Detournay, E. (2016), "Mechanics of hydraulic fractures", Ann. Rev. Fluid Mech., 48(1), 311-339. https://doi.org/10.1146/annurev-fluid-010814-014736
  8. Dott Jr, R.H. (1964), "Wacke, Graywacke and matrix-what approach to immature sandstone classification?", J. Sediment. Res., 34(3), 625-632.
  9. Dyke, C.G. and Dobereiner, L. (1991), "Evaluating the strength and deformability of sandstones", Quart. J. Eng. Geol. Hydrogeol., 24, 123-134. https://doi.org/10.1144/GSL.QJEG.1991.024.01.13
  10. Eggleton, R. and Buseck, P. (1980), "High resolution electron microscopy of feldspar weathering", Clay. Clay Miner., 28(3), 173-178. https://doi.org/10.1346/CCMN.1980.0280302
  11. Erguler, Z. and Ulusay, R. (2009), "Water-induced variations in mechanical properties of clay-bearing rocks", Int. J. Rock Mech. Min. Sci., 46(2), 355-370. https://doi.org/10.1016/j.ijrmms.2008.07.002
  12. Feng, X.T., Ding, W.X. and Zhang, D.X. (2009), "Multi-crack interaction in limestone subject to stress and flow of chemical solutions", Int. J. Rock Mech. Min. Sci., 46(1), 159-171. https://doi.org/10.1016/j.ijrmms.2008.08.001
  13. Feng, X.T., Li, S.J. and Chen, S.L. (2004), "Effect of water chemical corrosion on strength and cracking characteristics of rocks-a review", Key Eng. Mater., 261-263, 1355-1360. https://doi.org/10.4028/www.scientific.net/KEM.261-263.1355
  14. Fowell, R.J. (1995), "Suggested method for determining mode I fracture toughness using Cracked Chevron Notched Brazilian Disc (CCNBD) specimens", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 32(1), 57-64. https://doi.org/10.1016/0148-9062(94)00015-U
  15. Fowell, R.J. and Xu, C. (1994), "The use of the cracked Brazilian disc geometry for rock fracture investigations", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 31(6), 571-579. https://doi.org/10.1016/0148-9062(94)90001-9
  16. Fyfe, W.S., Price, N.J. and Thompson, A.B. (1978), Fluids in the Earth's crust. Developments in Geochemistry 1, Elsevier, 3-4.
  17. Gao, G., Huang, S., Xia, K. and Li, Z. (2015), "Application of digital image correlation (DIC) in dynamic notched semicircular bend (NSCB) tests", Exp. Mech., 55(1), 95-104. https://doi.org/10.1007/s11340-014-9863-5
  18. Gonzales, G.L., Gonzalez, J.A., Castro, J.T. and Freire, J.L. (2017), "A J-integral approach using digital image correlation for evaluating stress intensity factors in fatigue cracks with closure effects", Theor. Appl. Fract. Mech., 90, 14-21. https://doi.org/10.1016/j.tafmec.2017.02.008
  19. Gupta, M., Alderliesten, R.C. and Benedictus, R. (2015), "A review of T-stress and its effects in fracture mechanics", Eng. Fract. Mech., 134, 218-241. https://doi.org/10.1016/j.engfracmech.2014.10.013
  20. Hadizadeh, J. and Law, R.D. (1991), "Water-weakening of sandstone and quartzite deformed at various stress and strain rates", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 28(5), 431-439. https://doi.org/10.1016/0148-9062(91)90081-V
  21. Hawkins, A.B. and Mcconnell, B.J. (1992), "Sensitivity of sandstone strength and deformability to changes in moisture content", Quart. J. Eng. Geol., 25(2), 115-130. https://doi.org/10.1144/GSL.QJEG.1992.025.02.05
  22. Karakul, H. and Ulusay, R. (2013), "Empirical correlations for predicting strength properties of rocks from p-wave velocity under different degrees of saturation", Rock Mech. Rock Eng., 46(5), 981-999. https://doi.org/10.1007/s00603-012-0353-8
  23. Kim, E. and Changani, H. (2016), "Effect of water saturation and loading rate on the mechanical properties of Red and Buff Sandstones", Int. J. Rock Mech. Min. Sci., 88, 23-28. https://doi.org/10.1016/j.ijrmms.2016.07.005
  24. Kim, E. and De Oliveira, D.B.M. (2015), "The effects of water saturation on dynamic mechanical properties in red and buff sandstones having different porosities studied with Split Hopkinson Pressure Bar (SHPB)", Appl. Mech. Mater., 752, 784-789. https://doi.org/10.4028/www.scientific.net/AMM.752-753.784
  25. Kim, E., Garcia, A. and Changani, H. (2018), "Fragmentation and energy absorption characteristics of Red, Berea and Buff sandstones based on different loading rates and water contents", Geomech. Eng., 4(2), 151-159.
  26. Kim, E., Stine, M.A., De Oliveira, D.B.M. and Changani, H. (2017), "Correlations between the physical and mechanical properties of sandstones with changes of water content and loading rates", Int. J. Rock Mech. Min. Sci., 100, 255-262. https://doi.org/10.1016/j.ijrmms.2017.11.005
  27. Knauss, W.G. (2015), "A review of fracture in viscoelastic materials", Int. J. Fract., 196(1-2), 99-146. https://doi.org/10.1007/s10704-015-0058-6
  28. La Rosa, G., Clienti, C., Marino Cugno Garrano, A. and Lo Savio, F. (2017), "A novel procedure for tracking the measuring point in thermoelastic curves using D.I.C.", Eng. Fract. Mech., 183, 53-65. https://doi.org/10.1016/j.engfracmech.2017.06.011
  29. Labuz, J.F., Shah, S.P. and Dowding, C.H. (1985), "Experimental analysis of crack propagation in granite", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 22(2), 85-98. https://doi.org/10.1016/0148-9062(85)92330-7
  30. Le, J.L., Manning, J. and Labuz, J.F. (2014), "Scaling of fatigue crack growth in rock", Int. J. Rock Mech. Min. Sci., 72, 71-79. https://doi.org/10.1016/j.ijrmms.2014.08.015
  31. Lim, I.L., Johnston, I.W., Choi, S.K. and Boland, J.N. (1994), "Fracture testing of a soft rock with semi-circular specimens under three-point bending. Part 1-mode I", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 31(3), 185-197. https://doi.org/10.1016/0148-9062(94)90463-4
  32. Lin, M.L., Jeng, F.S., Tsai, L.S. and Huang, T.H. (2005), "Wetting weakening of tertiary sandstones-microscopic mechanism", Environ. Geol., 48(2), 265-275. https://doi.org/10.1007/s00254-005-1318-y
  33. Lin, Q. and Labuz, J.F. (2013), "Fracture of sandstone characterized by digital image correlation", Int. J. Rock Mech. Min. Sci., 60, 235-245. https://doi.org/10.1016/j.ijrmms.2012.12.043
  34. Lippmann, F. (1976), "Corrensite, a swelling clay mineral, and its influence on floor heave in tunnels in the Keuper formation", Bull. Int. Assoc. Eng. Geol., 14(1), 65-68. https://doi.org/10.1007/BF02634730
  35. Liu, M. and Chen, C. (2015), "A micromechanical analysis of the fracture properties of saturated porous media", Int. J. Solids Struct., 63, 32-38. https://doi.org/10.1016/j.ijsolstr.2015.02.031
  36. Mann, R. and Fatt, I. (1960), "Effect of pore fluids on the elastic properties of sandstone", Geophysics, 25(2), 433-444. https://doi.org/10.1190/1.1438713
  37. Mooney, R., Keenan, A. and Wood, L. (1952), "Adsorption of water vapor by montmorillonite. II. Effect of exchangeable ions and lattice swelling as measured by X-ray diffraction", J. Am. Chem. Soc., 74(6), 1371-1374. https://doi.org/10.1021/ja01126a002
  38. Nara, Y., Meredith, P.G., Yoneda, T. and Kaneko, K. (2011), "Influence of macro-fractures and micro-fractures on permeability and elastic wave velocities in basalt at elevated pressure", Tectonophysics, 503(1-2), 52-59. https://doi.org/10.1016/j.tecto.2010.09.027
  39. Nasseri, M.H.B. and Mohanty, B. (2008), "Fracture toughness anisotropy in granitic rocks", Int. J. Rock Mech. Min. Sci., 45(2), 167-193. https://doi.org/10.1016/j.ijrmms.2007.04.005
  40. Nguyen, T.L., Hall, S.A., Vacher, P. and Viggiani, G. (2011), "Fracture mechanisms in soft rock: Identification and quantification of evolving displacement discontinuities by extended digital image correlation", Tectonophysics, 503(1-2), 117-128. https://doi.org/10.1016/j.tecto.2010.09.024
  41. Picard, M.D. (1971), "Classification of fine-grained sedimentary rocks", J. Sediment. Res., 41(1), 179-195.
  42. Plumb, R.A. (1994), Influence of Composition and Texture on the Failure Properties of Clastic Rocks, in Rock Mechanics in Petroleum Engineering, Society of Petroleum Engineers, Delft, The Netherlands.
  43. Schmidt, R.A. (1976), "Fracture-toughness testing of limestone", Exp. Mech., 16(5), 161-167. https://doi.org/10.1007/BF02327993
  44. Schumacher, F.P. and Kim, E. (2013), "Modeling the pipe umbrella roof support system in a Western US underground coal mine", Int. J. Rock Mech. Min. Sci., 60, 114-124. https://doi.org/10.1016/j.ijrmms.2012.12.037
  45. Shakoor, A. and Barefield, E.H. (2009), "Relationship between unconfined compressive strength and degree of saturation for selected sandstones", Environ. Eng. Geosci., 15(1), 29-40. https://doi.org/10.2113/gseegeosci.15.1.29
  46. Song, H., Zhang, H., Kang, Y., Huang, G., Fu, D. and Qu, C. (2013), "Damage evolution study of sandstone by cyclic uniaxial test and digital image correlation", Tectonophysics, 608, 1343-1348. https://doi.org/10.1016/j.tecto.2013.06.007
  47. Sutton, M.A., Orteu, J.J. and Schreier, H.W. (2009), Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts, Theory and Applications, Springer.
  48. Thompson, T.A., Sowder, K.H. and Johnson, M. (2013), Generalized Stratigraphic Column of Indiana Bedrock: Indiana Geological Survey Poster, Indiana Geological Survey: Bloomington, Indiana, U.S.A.
  49. Tracy, J., Waas, A. and Daly, S. (2015), "Experimental assessment of toughness in ceramic matrix composites using the J-integral with digital image correlation part II: Application to ceramic matrix composites", J. Mater. Sci., 50(13), 4659-4671. https://doi.org/10.1007/s10853-015-9017-x
  50. Vasarhelyi, B. and Van, P. (2006), "Influence of water content on the strength of rock", Eng. Geol., 84(1-2), 70-74. https://doi.org/10.1016/j.enggeo.2005.11.011
  51. Verstrynge, E., Adriaens, R., Elsen, J. and Van Balen, K. (2014), "Multi-scale analysis on the influence of moisture on the mechanical behavior of ferruginous sandstone", Construct. Build. Mater., 54(Supplement C), 78-90. https://doi.org/10.1016/j.conbuildmat.2013.12.024
  52. Weaver, C.E. (1989), Clays, Muds, and Shales: Development in Sedimentology, 44, Elsevier.
  53. Xu, W., Johnston, C.T., Parker, P. and Agnew, S.F. (2000), "Infrared study of water sorption on Na-, Li-, Ca-, and Mgexchanged (SWy-1 and SAz-1) montmorillonite", Clay. Clay Miner., 48(1), 120-131. https://doi.org/10.1346/CCMN.2000.0480115
  54. Yoneyama, S., Arikawa, S., Kusayanagi, S. and Hazumi, K. (2014), "Evaluating J-integral from displacement fields measured by digital image correlation", Strain, 50(2), 147-160. https://doi.org/10.1111/str.12074
  55. Zhang, Z.X. (2016), Environmental Effects on Rock Fracture, in Rock Fracture and Blasting, Butterworth-Heinemann, 135-153.
  56. Zhou, X.P. and Yang, H.Q. (2007), "Micromechanical modeling of dynamic compressive responses of mesoscopic heterogenous brittle rock", Theor. Appl. Fract. Mech., 48(1), 1-20. https://doi.org/10.1016/j.tafmec.2007.04.008
  57. Zhou, Z., Cai, X., Ma, D., Cao, W., Chen, L. and Zhou, J. (2018), "Effects of water content on fracture and mechanical behavior of sandstone with a low clay mineral content", Eng. Fract. Mech., 193, 47-65. https://doi.org/10.1016/j.engfracmech.2018.02.028

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