Browse > Article
http://dx.doi.org/10.12989/gae.2021.24.2.179

Failure characteristics and mechanical mechanism of study on red sandstone with combined defects  

Chen, Bing (State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology)
Xia, Zhiguo (State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology)
Xu, Yadong (State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology)
Liu, Shuai (College of Earth Resource Sciences and Engineering, North China University of Water Resources and Electric Power)
Liu, Xingzong (College of Civil Engineering, Lu Dong University)
Publication Information
Geomechanics and Engineering / v.24, no.2, 2021 , pp. 179-191 More about this Journal
Abstract
In this study, the strength and failure mechanism of red sandstones with combined defects were investigated by uniaxial compression tests on red sandstones with different crack angles using two-dimensional particle flow code numerical software, and their mechanical parameters and failure process were studied and analyzed. The results showed that the mechanical characteristics such as peak strength, peak strain, and elastic modulus of the samples with prefabricated combined defects were significantly inferior than those of the intact samples. With increasing crack angle from 15° to 60°, the weakening area of cracks increased, elastic modulus, peak strength, and peak strain gradually reduced, the total number of cracks increased, and more strain energy was released. In addition, the samples underwent initial brittle failure to plastic failure stage, and the failure form was more significant, leading to peeling phenomenon. However, with increasing crack angle from 75° to 90°, the crack-hole combination shared the stress concentration at the tip of the crack-crack combination, resulted in a gradual increase in elastic modulus, peak strain and peak strength, but a decrease in the number of total cracks, the release of strain energy reduced, the plastic failure state weakened, and the spalling phenomenon slowed down. On this basis, the samples with 30° and 45° crack-crack combination were selected for further experimental investigation. Through comparative analysis between the experimental and simulation results, the failure strength and final failure mode with cracks propagation of samples were found to be relatively similar.
Keywords
numerical test; crack-crack combination; cracks-hole combination; acoustic emission count; crack propagation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Gratchev, I., Dong, H.K. and Chong, K.Y. (2016), "Strength of rock-like specimens with preexisting cracks of different length and width", Rock Mech. Rock. Eng., 49(11), 4491-4496. https://doi.org/10.1007/s00603-016-1013-1.   DOI
2 Haeri, H., Khaloo, A. and Marji, M.F. (2015), "Fracture analyses of different pre-holed concrete specimens under compression", Acta Mechanica Sinica, 31(6), 855-870. https://doi.org/10.1007/s10409-015-0436-3.   DOI
3 Jessu, K.V. and Spearing, A.J.S. (2019), "Direct strain evaluation method for laboratory-based pillar performance", J. Rock Mech. Geotech. Eng., 11(4), 860-866. https://doi.org/10.1016/j.jrmge.2018.12.017.   DOI
4 Katcoff, C.Z. and Graham-Brady, L.L. (2014), "Modeling dynamic brittle behavior of materials with circular flaws or pores", Int. J. Solids Struct., 51(3-4), 754-766. https://doi.org/10.1016/j.ijsolstr.2013.11.004.   DOI
5 Lee, H.W. and Jeon, S. (2011), "An experimental and numerical study of fracture coalescence in pre-cracked specimens under uniaxial compression", Int. J. Solids Struct., 48(6), 979-999. https://doi.org/10.1016/j.ijsolstr.2010.12.001.   DOI
6 Li, H.Q. and Wong, L.N.Y. (2013), "Numerical study on coalescence of pre-existing flaw pairs in rock-like material", Rock Mech. Rock Eng., 47(6),2087-2105. https://doi.org/10.1007/s00603-013-0504-6.   DOI
7 Lisjak, A. and Grasselli, G. (2014), "A review of discrete modeling techniques for fracturing processes in discontinuous rock masses", J. Rock Mech. Geotech. Eng., 6(4), 301-314. https://doi.org/10.1016/j.jrmge.2013.12.007.   DOI
8 Liu, T., Lin, B.Q. and Yang, W. (2017), "Mechanical behavior and failure mechanism of pre-cracked specimen under uniaxial compression", Tectonophysics, 712-713, 330-343. https://doi.org/10.1016/j.tecto.2017.06.004.   DOI
9 Lv, Y.W., Sun, C.P. and Shen, B.T. (2019), "Experimental study on damage evolution and crack propagation characteristics of sandstone under combined stress state", J. Shandong U. Sci. Techno. (Nature Science), 39(1), 37-45.
10 Liu, W., Zhang J.P., Liu, L.M., Zhang F.T. and Mao, H.K. (2019), "Experimental study on freezing thermal parameters and uniaxial compression of weathered rock and soil in Yuandatan coal mine", J. Shandong U. Sci. Technol. Nat. Sci., 38(5), 31-38.
11 Saadati, M., Forquin, P. Weddfelt, K. and Larsson, P.L. (2016), "On the tensile strength of granite at high strain rates considering the Iinfluence from preexisting cracks", Adv. Mater. Sci. Eng. https://doi.org/10.1155/2016/6279571.   DOI
12 Ma, Q., Tan, Y., Liu, X., Gu, Q. and Li, X. (2020), "Effect of coal thicknesses on energy evolution characteristics of roof rock coal-floor rock sandwich composite structure and its damage constitutive model", Compos. Part B Eng., 198, 108086. https://doi.org/10.1016/j.compositesb.2020.108086.   DOI
13 Mondal, S., Olsen-Kettle, L. and Gross, L. (2019), "Simulating damage evolution and fracture propagation in sandstone containing a preexisting 3-D surface flaw under uniaxial compression", Int. J. Numer. Anal. Met., 43(7), 1448-1466. https://doi.org/10.1002/nag.2908.   DOI
14 Morgan, S.P. and Einstein, H.H. (2017), "Cracking processes affected by bedding planes in opalinus shale with flaw pairs", Eng. Fract. Mech., 176, 213-234. https://doi.org/10.1016/j.engfracmech.2017.03.003.   DOI
15 Sarfarazi, V., Haeri, H. and Shemirani, A.B. (2018), "Simulation of fracture mechanism of pre-holed concrete model under Brazilian test using PFC3D", Smart Struct. Syst., 22(6), 675-687. https://doi.org/10.12989/sss.2018.22.6.675.   DOI
16 Asadizadeh, M., Moosavi, M. and Hossaini, M.F. (2018), "Investigation of mechanical behaviour of non-persistent jointed blocks under uniaxial compression", Geomech. Eng., 14(1), 29-42. https://doi.org/10.12989/gae.2018.14.1.029.   DOI
17 Afolagboye, L.O., He, J.M. and Wang, S.J. (2017), "Experimental study on cracking behaviour of moulded gypsum containing two non-parallel overlapping flaws under uniaxial compression", Acta Mech. Sinica, 33(2), 394-405. https://doi.org/10.1007/s10409-016-0624-9.   DOI
18 Aharonov, E. and Karcz, Z. (2019), "How stylolite tips crack rocks", J. Struct. Geol., 118, 299-307. https://doi.org/10.1016/j.jsg.2018.11.002.   DOI
19 Shi, H., Song, L., Zhang H. Q., Xue, K.K., Yuan, G.T., Wang Z.S. and Wang, G.Z. (2019), "Numerical study on mechanical and failure properties of sandstone based on the power-law distribution of pre-crack length", Geomech. Eng., 19(5), 421-434. https://doi.org/10.12989/gae.2019.19.5.421.   DOI
20 Vahab, S., Hadi, H. and Alireza, B.S. (2018), "Simulation of fracture mechanism of pre-holed concrete model under Brazilian test using PFC3D", Smart Struct. Syst., 22(6), 675-687. https://doi.org/10.12989/sss.2018.22.6.675.   DOI
21 Bastola, S. and Cai, M. (2019), "Investigation of mechanical properties and crack propagation in pre-cracked marbles using lattice-spring-based synthetic rock mass (LS-SRM) modeling approach", Comput. Geotech., 110, 28-43. https://doi.org/10.1016/j.compgeo.2019.02.009.   DOI
22 Xu J., Haque A., Gong W., Gamage R.P. and Xu F. (2020), "Experimental study on the bearing mechanisms of rock-socketed piles in soft rock based on micro X-ray CT analysis", Rock Mech. Rock Eng., 53, 3395-3416. https://doi.org/10.1007/s00603-020-02121-3.   DOI
23 Wong, R.H. and Lin, P. (2015), "Numerical study of stress distribution and crack coalescence mechanisms of a solid containing multiple holes", Int. J. Rock Mech. Min. Sci., 79, 41-54. https://doi.org/10.1016/j.ijrmms.2015.08.003.   DOI
24 Wong, R.H.C., Lin, P. and Tang, C.A. (2006), "Experimental and numerical study on splitting failure of brittle solids containing single pore under uniaxial compression", Mech. Mater., 38(1), 142-159. https://doi.org/10.1016/j.mechmat.2005.05.017.   DOI
25 Xia, Z.G., Chen, S.J., Liu, X.Z. and Sun, R. (2020), "Strength characteristics and fracture evolution of rock with different shapes inclusions based on particle flow code", Geomech. Eng., 22(5), 461-473. https://doi.org/10.12989/gae.2020.22.5.461.   DOI
26 Xu, Z.H., Wang, W.Y., Lin, P. and Xiong, Y. (2015), "A parameter calibration method for PFC simulation: Development and a case study of limestone", Geomech. Eng., 22(1), 97-108. https://doi.org/10.12989/gae.2020.22.1.097.   DOI
27 Xue, D.J. (2020), "Determination of uniaxial compressive strength of intact rock", J. Shandong U. Sci. Technol. Nat. Sci., 39(4), 28-36.
28 Zaitsev, Y.B. and Wittmann, F.H. (1981), "Simulation of crack propagation and failure of concrete", Mater. Struct., 83(14), 357-365. https://doi.org/10.1007/BF02478729.   DOI
29 Yang, D.S., Jing, H.W., Li, Y.H. and Wang, S.Y. (2012), "An experimental study of the fracture coalescence behaviour of brittle sandstone specimens containing three fissures", Rock. Mech. Rock. Eng., 45(4), 563-582. https://doi.org/10.1007/s00603-011-0206-x.   DOI
30 Yin, D.W., Chen S.J., Ge Y. and Liu R, (2021), "Mechanical properties of rock-coal bi-material samples with different lithologies under uniaxial loading", J. Mater. Res. Technol., 10, 322-338. https://doi.org/10.1016/j.jmrt.2020.12.010.   DOI
31 Zhao J.H., Chen, J.T., Zhang, X.G., Jiang, N. and Zhang, Y.Z. (2020), "Distribution characteristics of floor pore water pressure based on similarity simulation experiments", B. Eng. Geol. Environ. https://doi.org/10.1007/s10064-020-01835-6.   DOI
32 Zhu, Q.Q, Li, D.Y., Han, Z.Y., Li X.B. and Zhou, Z.L. (2019), "Mechanical properties and fracture evolution of sandstone specimens containing different inclusions under uniaxial compression", Int. J. Rock Mech. Min. Sci., 115, 33-47. https://doi.org/10.1016/j.ijrmms.2019.01.010.   DOI
33 Cho, N, Martin, C.D and Sego, D.C. (2007), "A clumped particle model for rock", Int. J. Rock Mech. Min. Sci., 44(7), 997-1010. https://doi.org/10.1016/j.ijrmms.2007.02.002.   DOI
34 Bratov, V. and Krivtsov, A. (2019), "Analysis of energy required for initiation of inclined crack under uniaxial compression and mixed loading", Eng. Fract. Mech., 216, 106518. https://doi.org/10.1016/j.engfracmech.2019.106518.   DOI
35 Chen, B, Zhang, S.C, Li, Y.Y, Li, Z.K and Zhou, H.J (2020), "Physical simulation study of crack propagation and instability information discrimination of rock-like materials with faults", Arab. J. Geosci., 13(18), 1-14. https://doi.org/10.1007/s12517-020-05966-8.   DOI
36 Chen, S.J., Xia, Z.G. and Yin, D.W. (2020), "Numerical study on strength and failure characteristics of rock samples with different hole defects", B. Eng. Geol. Environ., 1-18. https://doi.org/10.1007/s12517-020-05966-8   DOI
37 Cundall, P.A. and Strack, O.D. (2008), "A discreate numerical model for granular assemblies", Geotechnique, 29(1), 47-65. https://doi.org/10.1680/geot.1980.30.3.331.   DOI
38 Germanou, L., Ho, M.T. and Zhang, Y.H. (2018), "Intrinsic and apparent gas permeability of heterogeneous and anisotropic ultra-tight porous media", J. Nat. Gas Sci. Eng., 60, 271-283. https://doi.org/10.1016/j.jngse.2018.10.003.   DOI
39 Damaskinskaya, E.E., Hilarov, V.L., Panteleev, I.A., Gafurova, D.R. and Frolov, D.I (2018), "Statistical regularities of formation of a main crack in a structurally inhomogeneous material under various deformation conditions", Phys. Solid State, 60(9), 1821-1826. https://doi.org/10.1155/2018/7065029.   DOI
40 Du, M.R, Jing, H.W., Su, H.J. and Zhu T.T. (2016), "Experimental study of strength and failure characteristics of sandstone containing prefabricated elliptical hole", J. China U. Min. Technol., 45(6), 1164-1171. https://doi.org/10.13247/j.cnki.jcumt.000593.   DOI