Geomechanics and Engineering

  • 제26권5호
  • /
  • Pages.477-487
  • /
  • 2021
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of heat treatment and bedding orientation on the tensile properties of bedded sandstone

  • Shi, Xinshuai (College of Energy and Mining Engineering, Shandong University of Science and Technology) ;
  • Jiang, Yujing (College of Energy and Mining Engineering, Shandong University of Science and Technology) ;
  • Jing, Hongwen (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology) ;
  • Zhang, Yuanchao (Graduate School of Engineering, Nagasaki University) ;
  • Gao, Yuan (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology) ;
  • Zhao, Zhenlong (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology) ;
  • Yin, Qian (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology)
  • 투고 : 2020.06.02
  • 심사 : 2021.09.07
  • 발행 : 2021.09.10
⟨ 이전 논문 다음 논문 ⟩

초록

The effect of heat treatment and the bedding orientation on the tensile properties, the central strain and failure patterns of bedded sandstone specimens were studied under Brazilian test conditions. The laboratory test results show that the tensile strength decreases with increasing bedding orientation at different temperatures, which indicates the bedded sandstone possesses prominent anisotropy in tensile strength. The anisotropy coefficient first increases and then decreases with the increasing temperature. For all temperatures, both V-strain and S-strain present a decreasing trend with increasing bedding orientation. However, for all bedding orientations, the S-strain first increases and then decreases, but V-strain continues to increase with increasing temperature. Furthermore, the failure patterns of the failed specimens are generally classified into three categories: central across the bedding planes (CF), fracture along the bedding planes (LA) and the mixed fracture patterns of the two. Finally, the evolution of the internal structure of the disk specimens after different heat treatments was investigated by SEM tests. The specimen profile looks smoother and denser at 400℃ and 600℃, but at 800℃ and 1000℃, the internal structure of the specimen is sharply deteriorated by thermal reactions.

키워드

과제정보

This work is financially supported by National Natural Science Foundation of China (No52074259, 51734009). We also would like to express our sincere gratitude to the editor and reviewers for their valuable comments which have greatly improved this paper.

참고문헌

  1. ASTM D3967-08, (2008), Standard test method for splitting tensile strength on intact rock core specimens, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  2. Becattini, V., Motmans, T., Zappone, A., Madonna, C., Haselbacher, A. and Steinfeld, A. (2017), "Experimental investigation of the thermal and mechanical stability of rocks for high-temperature thermal-energy storage", Appl. Energy, 203, 373-389. https://doi.org/10.1016/j.apenergy.2017.06.025.
  3. Chen, G., Li, T., Wang, W., Guo, F. and Yin, H. (2017), "Characterization of the brittleness of hard rock at different temperatures using uniaxial compression tests", Geomech. Eng., 13(1), 63-77. https://doi.org/10.12989/gae.2017.13.1.063.
  4. Cheng, Z.B., Li, L.H. and Zhang, Y.N. (2019), "Laboratory investigation of the mechanical properties of coal-rock combined body", B. Eng. Geol. Environ., 79(4), 1947-1958. https://doi.org/10.1007/s10064-019-01613-z.
  5. Chong, Z.H., Li, X., Hou, P., Wu, Y., Zhang, J., Chen, T. and Liang, S. (2017), "Numerical investigation of bedding plane parameters of transversely isotropic shale", Rock Mech. Rock Eng., 50(5), 1-22. https://doi.org/10.1007/s00603-016-1159-x.
  6. Debecker, B. and Vervoort, A. (2009), "Experimental observation of fracture patterns in layered slate", Int. J. Fract., 159, 51-62. https://doi.org/10.1007/s10704-009-9382-z.
  7. Gholami, R. and Rasouli, V. (2014), "Mechanical and elastic properties of transversely isotropic slate", Rock Mech. Rock Eng., 47(5), 1763-1773. https://doi.org/10.1007/s00603-013-0488-2.
  8. Keneti, A. and Wong, R. (2010), "Investigation of anisotropic behavior of Montney shale under indirect tensile strength test", Proceedings of the Canadian Unconventional Resources and International Petroleum Conference, Alberta, Canada, October.
  9. Khanlari, G., Rafiei, B. and Abdilor, Y. (2015), "An experimental investigation of the Brazilian tensile strength and failure patterns of laminated sandstones", Rock Mech. Rock Eng., 48(2), 843-852. https://doi.org/10.1007/s00603-014-0576-y.
  10. Komurlu, E., Kesimal, A. and Demir, S. (2016), "Experimental and numerical analyses on determination of indirect (splitting) tensile strength of cemented paste backfill materials under different loading apparatus", Geomech. Eng., 10(6), 775-791. http://doi.org/10.12989/gae.2016.10.6.775.
  11. Liu, X.S., Fan, D.Y., Tan, Y.L., Ning, J.G., Song, S.L., Wang, H.L. and Li, X.B. (2021), "New detecting method on the connecting fractured zone above the coal face and a case study", Rock Mech. Rock Eng., 1-13. https://doi.org/10.1007/s00603-021-02487-y.
  12. Lu, C., Sun, Q., Zhang, W.Q., Geng, J.S., Qi, Y.M. and Lu, L.L. (2017), "The effect of high temperature on tensile strength of sandstone", Appl. Therm. Eng., 111(25), 573-579. https://doi.org/10.1016/j.applthermaleng.2016.09.151.
  13. Mokhtari, M., Bui, B.T., Tutuncu, A.N. (2014), "Tensile failure of shales: impacts of layering and natural fractures", Proceedings of the SPE Western North American and Rocky Mountain Joint Meeting, Denver, U.S.A., April.
  14. Nasseri, M., Rao, K. and Ramamurthy, T. (2003), "Anisotropic strength and deformational behavior of Himalayan schists", Int. J. Rock Mech. Min. Sci., 40(1), 3-23. https://doi.org/10.1016/S1365-1609(02)00103-X.
  15. Nezhad, M.M., Zhu, H.H., Woody Ju, J. and Chen, Q. (2016), "A simplified multiscale damage model for the transversely isotropic shale rocks under tensile loading", Int. J. Damage Mech., 25(5), 705-726. https://doi.org/10.1177/1056789516639531.
  16. Roy, D.G. and Singh, T. (2016), "Effect of heat treatment and layer orientation on the tensile strength of a crystalline rock under Brazilian test condition", Rock Mech. Rock Eng., 49(5), 1663-1677. https://doi.org/10.1007/s00603-015-0891-y.
  17. Sirdesai, N., Singh, T., Ranjith, P. and Singh, R. (2017), "Effect of varied durations of thermal treatment on the tensile strength of red sandstone", Rock Mech. Rock Eng., 50(1), 205-213. https://doi.org/10.1007/s00603-016-1047-4.
  18. Tavallali, A. and Vervoort, A. (2010), "Effect of layer orientation on the failure of layered sandstone under Brazilian test conditions", Int. J. Rock Mech. Min. Sci., 47(2), 313-322. https://doi.org/10.1016/j.ijrmms.2010.01.001.
  19. Tomac, I. and Sauter, M. (2018), "A review on challenges in the assessment of geomechanical rock performance for deep geothermal reservoir development", Renew. Sust. Energy Rev., 82, 3972-3980. https://doi.org/10.1016/j.rser.2017.10.076.
  20. Wang, X., Yuan, W., Yan, Y. and Zhang, X. (2020), "Scale effect of mechanical properties of jointed rock mass: A numerical study based on particle flow code", Geomech. Eng., 21(3), 259-268. https://doi.org/10.12989/gae.2020.21.3.259.
  21. Wang, J., Qiu, P.Q., Yang, S. and Shang, H.F. (2019), "Microseismic monitoring and its precursory parameter of hard roof collapse in longwall faces: A case study", Geomech. Eng., 17(4), 375-383. https://doi.org/10.12989/gae.2019.17.4.375.
  22. Xue, Y.C., Sun, W.B. and Wu, Q. (2020), "The influence of magmatic rock thickness on fracture and instability law of mining surrounding rock", Geomech. Eng., 20(6), 547-556. https://doi.org/10.12989/gae.2020.20.6.000.
  23. Yang, S.Q., Yin, P.F. and Huang, Y.H. (2019), "Experiment and discrete element modelling on strength, deformation and failure behaviour of shale under Brazilian compression", Rock Mech. Rock Eng., 52(11), 4339-4359. https://doi.org/10.1007/s00603-019-01847-z.
  24. Yin, T.B., Li, X.B., Cao, W.Z. and Xia, K.W. (2015), "Effects of thermal treatment on tensile strength of Laurentian granite using Brazilian test", Rock Mech. Rock Eng., 48(6), 2213-2223. https://doi.org/10.1007/s00603-015-0712-3.
  25. Zhou, Z.L., Cai, X., Ma, D., Chen, L., Wang, S.F. and Tan, L.H. (2018), "Dynamic tensile properties of sandstone subjected to wetting and drying cycles", Constr. Build. Mater., 182, 215-232. https://doi.org/10.1016/j.conbuildmat.2018.06.056.

피인용 문헌

  1. Physical modeling investigation on deformation characteristic and roof instability mechanism of deep rectangular roadway in layered rock mass vol.15, pp.1, 2021, https://doi.org/10.1007/s12517-021-09319-x