Geomechanics and Engineering

  • 제29권6호
  • /
  • Pages.627-643
  • /
  • 2022
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mechanical behavior of sandstones under water-rock interactions

  • Zhou, Kunyou (Key Laboratory of Deep Coal Resource Mining, Ministry of Education, China University of Mining and Technology) ;
  • Dou, Linming (Key Laboratory of Deep Coal Resource Mining, Ministry of Education, China University of Mining and Technology) ;
  • Gong, Siyuan (School of Mines, China University of Mining and Technology) ;
  • Chai, Yanjiang (School of Mines, China University of Mining and Technology) ;
  • Li, Jiazhuo (School of Mines, China University of Mining and Technology) ;
  • Ma, Xiaotao (School of Mines, China University of Mining and Technology) ;
  • Song, Shikang (Shaanxi Zhengtong Coal Industry Co., Ltd.)
  • 투고 : 2021.08.30
  • 심사 : 2022.05.03
  • 발행 : 2022.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

Water-rock interactions have a significant influence on the mechanical behavior of rocks. In this study, uniaxial compression and tension tests on different water-treated sandstone samples were conducted. Acoustic emission (AE) monitoring and micro-pore structure detection were carried out. Water-rock interactions and their effects on rock mechanical behavior were discussed. The results indicate that water content significantly weakens rock mechanical strength. The sensitivity of the mechanical parameters to water treatment, from high to low, are Poisson ratio (𝜇), uniaxial tensile strength (UTS), uniaxial compressive strength (UCS), elastic modulus (E), and peak strain (𝜀). After water treatment, AE activities and the shear crack percentage are reduced, the angles between macro fractures and loading direction are minimized, the dynamic phenomenon during loading is weakened, and the failure mode changes from a mixed tensile-shear type to a tensile one. Due to the softening, lubrication, and water wedge effects in water-rock interactions, water content increases pore size, promotes crack development, and weakens micro-pore structures. Further damage of rocks in fractured and caved zones due to the water-rock interactions leads to an extra load on the adjoining coal and rock masses, which will increase the risk of dynamic disasters.

키워드

과제정보

This work was supported by National Natural Science Foundation of China [grant number 51874292; 51934007; 52004004] and Postgraduate Research & Practice Innovation Program of Jiangsu Province [grant number KYCX21_2341].

참고문헌

  1. Aggelis, D.G. (2011), "Classification of cracking mode in concrete by acoustic emission parameters", Mech. Res. Commun., 38(3), 153-157. https://doi.org/10.1016/j.mechrescom.2011.03.007.
  2. Davydov, V.V., Myazin, N.S., Dudkin, V.I. and Velichko, E.N. (2018), "Investigation of condensed media in weak fields by the method of nuclear magnetic resonance", Russian Phys. J., 61(1), 162-168. https://doi.org/10.1007/s11182-018-1380-z.
  3. Gardner, W. (1921), "Note on the dynamics of capillary flow", Phys. Rev., 18(3), 206-209. https://doi.org/10.1103/PhysRev.18.206.
  4. Gaucher, E.C., Defossez, P.D.C., Bizi, M., Bonijoly, D., Disnar, J.R., Defarge, F.L., Garnier, C., Finqueneisel, G., Zimny, T., Grgic, D., Pokryszka, Z., Lafortune, S. and Gilbert, S.V. (2011), "Coal laboratory characterisation for CO2 geological storage", Energy Procedia, 4(1), 3147-3154. https://doi.org/10.1016/j.egypro.2011.02.229.
  5. Hadizadeh, J., Sehhati, R. and Tullis, T. (2010), "Porosity and particle shape changes leading to shear localization in small-displacement faults", J. Struct. Geol., 32(11), 1712-1720. https://doi.org/10.1016/j.jsg.2010.09.010.
  6. Hashiba, K. and Fukui, K. (2015), "Effect of water on the deformation and failure of rock in uniaxial tension", Rock Mech. Rock Eng., 48(5), 1751-1761. https://doi.org/10.1007/s00603-014-0674-x.
  7. He, M.M., Zhang, Z.Q., Zhu, J.W. and Li, N. (2021), "Correlation between the constant mi of Hoek-Brown criterion and porosity of intact rock", Rock Mech. Rock Eng., 55(2), 923-936. https://doi.org/10.1007/s00603-021-02718-2.
  8. Hodot, B.B. (1966), Coal and gas outburst, China Industrial Press, Beijing, China.
  9. Janssen, C., Wirth, R., Reinicke, A., Rybacki, E., Naumann, R., Wenk, H.R. and Dresen, G. (2011), "Nanoscale porosity in SAFOD core samples (San Andreas Fault)", Earth Planetary Sci. Lett., 301(1-2), 179-189. https://doi.org/10.1016/j.epsl.2010.10.040.
  10. Kharghani, M., Goshtasbi, K., Nikkah, M. and Ahangari, K. (2021), "Investigation of the Kaiser effect in anisotropic rocks with different angles by acoustic emission method", Appl. Acoust., 175(4), 107831. https://doi.org/10.1016/j.apacoust.2020.107831.
  11. 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. https://doi.org/10.12989/gae.2018.14.2.151.
  12. Kuznetcov, N., Fedotova, I. and Pak, A. (2018), "Study of physical-mechanical properties of hard rocks under water-saturated conditions", Proceedings of the International European Rock Mechanics Symposium (EUROCK), Saint Petersburg, RUSSIA, May.
  13. Li, Y., Yang, J.H., Pan, Z.J. and Tong, W.S. (2020), "Nanoscale pore structure and mechanical property analysis of coal: An insight combining AFM and SEM images", Fuel, 260, 116352. https://doi.org/10.1016/j.fuel.2019.116352.
  14. Li, Z.L., He, X.Q., Dou, L.M., Song, D.Z., Wang, G.F. and Xu, X.L. (2019), "Investigating the mechanism and prevention of coal mine dynamic disasters by using dynamic cyclic loading tests", Saf. Sci., 115, 215-228. https://doi.org/10.1016/j.ssci.2019.02.011.
  15. Liu, H.L., Zhu, W.C., Yu, Y.J., Xu, T., Li, R.F. and Liu, X.G. (2020), "Effect of water imbibition on uniaxial compression strength of sandstone", Int. J. Rock Mech. Min. Sci., 127:104200. https://doi.org/10.1016/j.ijrmms.2019.104200.
  16. Masoumi, H., Horne, J. and Timms, W. (2017), "Establishing empirical relationships for the effects of water content on the mechanical behavior of gosford sandstone", Rock Mech. Rock Eng., 50, 2235-2242. https://doi.org/10.1007/s00603-017-1243-x.
  17. Ohno, K. and Ohtsu, M. (2010), "Crack classification in concrete based on acoustic emission", Constr. Build. Mater., 24(12), 2339-2346. https://doi.org/10.1016/j.conbuildmat.2010.05.004.
  18. Pimienta, L., Fortin, J. and Gueguen, Y. (2014), "Investigation of elastic weakening in limestone and sandstone samples from moisture adsorption", Geophys. J. Int., 199(1), 335-347. https://doi.org/10.1093/gji/ggu257.
  19. Ranjith, P.G., Zhao, J., Ju, M.H., De Silva, R.V.S., Rathnaweera, T.D. and Bandara, A.K.M.S. (2017), "Opportunities and challenges in deep mining: A brief review", Eng., 3(4), 546-551. https://doi.org/10.1016/J.ENG.2017.04.024.
  20. Raynaud, S, Fabre, D, Mazerolle, F., Geraud, Y. and Latiere, H.J. (1989), "Analysis of the internal structure of rocks and characterization of mechanical deformation by a non-destructive method: X-ray tomodensitometry", Tectonophysics, 159(1-2), 149-159. https://doi.org/10.1016/0040-1951(89)90176-5.
  21. Seunghwan, K., Rim Heuidae, D. and Seongmin Y. (2017), "A Study on the impermeable effect by grouting in the subsea tunnel", J. Korean Geo-Environ. Soc., 18(6), 5-19. https://doi.org/10.14481/jkges.2017.18.6.5.
  22. Shapiro, A.M., Evans, C.E. and Hayes, E.C. (2017), "Porosity and pore size distribution in a sedimentary rock: Implications for the distribution of chlorinated solvents", J. Contaminant Hydrology, 203, 70-84. https://doi.org/10.1016/j.jconhyd.2017.06.006.
  23. Song, H.H., Zhao, Y.X., Jiang, Y.D. and Du, W.S. (2020), "Experimental investigation on the tensile strength of coal: consideration of the specimen size and water content", Energies, 13(24), 6585. https://doi.org/10.3390/en13246585.
  24. Sun, Y.J., Zuo, J.P., Karakus, M. and Wang, J.T. (2019), "Investigation of movement and damage of integral overburden during shallow coal seam mining", Int. J. Rock Mech. Min. Sci., 117, 63-75. https://doi.org/10.1016/j.ijrmms.2019.03.019.
  25. Tang, C.J., Yao, Q.L., Xu, Q., Shan, C.H., Xu, J.M., Han, H. and Guo, H.T. (2021), "Mechanical failure modes and fractal characteristics of coal samples under repeated drying-Saturation conditions", Nat. Resour. Res., 2021, 1-18. https://doi.org/10.1007/s11053-021-09905-6.
  26. Vaneghi, R.G., Thoeni, K., Dyskin, A.V., Sharifzadeh, M. and Sarmadivaleh, M. (2020), "Strength and damage response of sandstone and granodiorite under different loading conditions of multistage uniaxial cyclic compression", Int. J. Geomech., 20(9), 04020159. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001801.
  27. 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.
  28. Vishal, V., Ranjith, P.G. and Singh, T.N. (2015), "An experimental investigation on behaviour of coal under fluid saturation, using acoustic emission", J. Nat. Gas Sci. Eng., 22, 428-436. https://doi.org/10.1016/j.jngse.2014.12.020.
  29. Wang, B., Jiang, F.X., Zhu, S.T., Zhang, X.F., Shang, X.G., Gu, S.Y. and Wu, Z. (2020a), "Investigating on the mechanism and prevention of rock burst induced by high intensity mining of drainage area in deep mines", J. China Coal Soc., 45(9), 3054-3064. https://doi.org/10.13225/j.cnki.jccs.2020.0382.
  30. Wang, S., Li, H.M., Wang, W. and Li, D.Y. (2018b), "Experimental study on mechanical behavior and energy dissipation of anthracite coal in natural and forced water-saturation states under triaxial loading", Arabian J. Geosci., 11(21), 1-17. https://doi.org/10.1007/s12517-018-4014-4.
  31. Wang, W., Zhang, S.W., Wang, S., Li, D.Y., Wang, W., Hao, Y.X. and Wang, H. (2021), "Mechanical behavior of limestone in natural and forced saturation states under uniaxial loading: an experimental study", Geomech. Geophys. Geo-Energy Geo-Resources, 7, 65. https://doi.org/10.1007/s40948-021-00261-6.
  32. Wang, X.R., Wang, E.Y., Liu, X.F., Li, X.L., Wang, H. and Li, D.X. (2018a), "Macro-crack propagation process and corresponding AE behaviors of fractured sandstone under different loading rates", Chinese J. Rock Mech. Eng., 37(6), 1446-1458. https://doi.org/10.13722/j.cnki.jrme.2017.1672.
  33. Wang, Z. H., Bi, L.P., Kwon, S., Qiao, L.P. and Li, W. (2020b), "The effects of hydro-mechanical coupling in fractured rock mass on groundwater inflow into underground openings", Tunn. Undergr. Sp. Tech., 103, 103489. https://doi.org/10.1016/j.tust.2020.103489.
  34. Xu, J.Z., Zhai, C., Qin, L. and Liu, S.M. (2018), "Pulse hydraulic fracturing technology and its application in coalbed methane extraction", Int. J. Oil Gas Coal Tech., 19(1), 115-133. https://doi.org/10.1504/IJOGCT.2018.093962.
  35. Yang, J., Hatcherian, J., Hackley, P.C. and Pomerantz, A.E. (2017), "Nanoscale geochemical and geomechanical characterization of organic matter in shale", Nature Commun., 8(1), 2179. https://doi.org/10.1038/s41467-017-02254-0.
  36. Yang, X.H., Ren, T., Tan, L.H. and Remennikov, A. (2021), "Effects of water saturation time on energy dissipation and burst propensity of coal specimens", Geomech. Eng., 24(3), 205-213. https://doi.org/10.12989/gae.2021.24.3.205.
  37. Yao, Q.L., Zheng, C.K., Tang, C.J., Xu, Q., Chong, Z.H. and Li, X.H. (2020), "Experimental investigation of the mechanical failure behavior of coal specimens with water intrusion", Front. Earth Sci., 7, 348. https://doi.org/10.3389/feart.2019.00348.
  38. Yu, J.L., Tahmasebi, A., Han, Y.N., Yin, F.K. and Li, X.C. (2013), "A review on water in low rank coals: the existence, interaction with coal structure and effects on coal utilization", Fuel Process. Tech., 106, 9-20. https://doi.org/10.1016/j.fuproc.2012.09.051.
  39. Yuan, R.F., Li, Y.Q. and Jiao, Z.H. (2015), "Movement of overburden stratum and damage evolution of floor stratum during coal mining above aquifers", Procedia Eng., 102:1857-1866. https://doi.org/10.1016/j.proeng.2015.01.324.
  40. Zhang, T., Yu, L.Y., Su, H.J., Zhang, Q. and Chai, S.B. (2021), "Experimental and numerical investigations on the tensile mechanical behavior of marbles containing dynamic damage", Int. J. Min. Sci. Tech., 32(1), 89-102. https://doi.org/10.1016/j.ijmst.2021.08.002.
  41. Zhang, Y.T., Ding, X.L., Huang, S.L., Wu, Y.J. and He, J. (2020), "Strength degradation of a natural thin-bedded rock mass subjected to water immersion and its impact on tunnel stability", Geomech. Eng., 21(1), 63-71. https://doi.org/10.12989/gae.2020.21.1.063.
  42. Zhou, K.Y., Dou, L.M., Gong, S.Y., Li, J.Z., Zhang, J.K. and Cao, J.R. (2020b), "Study of rock burst risk evolution in front of deep longwall panel based on passive seismic velocity tomography", Geofluids, 2020(1), 1-14. https://doi.org/10.1155/2020/8888413.
  43. Zhou, K.Y., Dou, L.M., Li, X.W., Song, S.K., Cao, J.R., Bai, J.Z. and Ma, X.T. (2022), "Coal burst and mining-induced stress evolution in a deep isolated main entry area - A case study", Eng. Fail. Anal., 137, 106289. https://doi.org/10.1016/j.engfailanal.2022.106289.
  44. Zhou, Z.L., Tan, L.H. and Cai, X. (2020a), "Water infusion on the stability of coal specimen under different static stress conditions", Appl. Sci., 10(6), 2043. https://doi.org/10.3390/app10062043.