Abstract
The interface crack is the typical defect in fracture mechanics, and it often exists inside the layered composite rocks (LCRs). How does it respond to the stress circumstances with a large anisotropy? Is of paramount importance in the stability evaluation of underground engineering. This issue is addressed in this study where the true triaxial tests with the loading rate of 0.05 mm/min are conducted on the two-layered sandstone-granite composite structures containing the interface cracks. Sandstone and granite have a strength of 92.1 and 135.4 MPa, respectively. Results show that the interface crack significantly weakens the LCR strength under true triaxial stress. The interface crack tips, as typical stress concentrator, are revealed as the main sources of fracture initiation and propagation, and the interface crack tips are also found as an essential joint for the fracture containment within the weaker layer. The fracture cluster is formed ahead of the interface crack tip where tensile fracture co-exists with shear fracture. Moreover, the macro-failure initiation mode exhibits the interface crack tip fracture in the quasi-3D failure manner. Main failure planes of LCRs appear sub-orthogonally to σ3 and display the mode of σ3-transverse-symmetric fracturing. Finally, the coupling mechanisms among the interface crack, the stress anisotropy and the mechanical contrast between the layers are revealed.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
References
Abharian S, Sarfarazi V, Marji MF, Rasekh H (2022) Experimental and numerical evaluation of the effects of interaction between multiple small holes and a single notch on the mechanical behavior of artificial gypsum specimens. Theor Appl Fract Mech 121:103462
Ambre S (2011) Influence of the loading conditions on the mechanical response of granular materials as constrained from experimental tests on synthetic rock analogue material. Int J Rock Mech Min Sci 48(1):103–115
Amini MS, Sarfarazi V, Moheb Hoori M, Jahanmiri S, Wang X (2023) Effects of un-parallel notches on the granite fracture properties and acoustic emission phenomena under biaxial test: PFC computation and experimental verification. Mech Adv Mate Struct. https://doi.org/10.1080/15376494.2023.2207179
Bai T, Pollard DD, Gao H (2000) Explanation for fracture spacing in layered materials. Nature 403:753–756
Boersma QD, Douma L, Bertotti G, Barnhoorn A (2020) Mechanical controls on horizontal stresses and fracture behaviour in layered rocks: a numerical sensitivity analysis. J Struct Geol 130:103907
Chen SJ, Yin DW, Jiang N, Wang F, Zhao ZH (2019) Mechanical properties of oil shale-coal composite samples. Int J Rock Mech Min Sci 123:104120
Chen T, Yao QL, Wei F, Chong Z, Li J (2017) Effects of water intrusion and loading rate on mechanical properties of and crack propagation in coal–rock combinations. J Cent South Univ 24:423–431
Douma L, Regelink JA, Bertotti G, Boersma QD, Barnhoorn A (2019) The mechanical contrast between layers controls fracture containment in layered rocks. J Struct Geol 127:103856
Feng XT, Haimson B, Li X, Chang C, Ma X, Zhang X, Ingraham M, Suzuki K (2019) ISRM suggested method: determining deformation and failure characteristics of rocks subjected to true triaxial compression. Rock Mech Rock Eng 52:2011–2020
Fu J, Haeri H, Sarfarazi V, Asgari K, Ebneabbasi P, Marji MF, Guo M (2021) Extended finite element method simulation and experimental test on failure behavior of defects under uniaxial compression. Mech Adv Mate Struct 29(27):6966–6981
Fu J, Haeri H, Sarfarazi V, Naderi AA, Marji MF, Xu L (2023) Influence of arch shaped notch angle, length and opening on the failure mechanism of rock like material and acoustic emission properties: experimental test and numerical simulation. Theor Appl Fract Mech 125:103879
Guo L, Latham JP, Xiang J (2017) A numerical study of fracture spacing and through-going fracture formation in layered rocks. Int J Solids Struct 110–111:44–57
Huang B, Liu J (2013) The effect of loading rate on the behavior of samples composed of coal and rock. Int J Rock Mech Min Sci 61:23–30
Kettermann M, Urai JL (2015) Changes in structural style of normal faults due to failure mode transition: First results from excavated scale models. J Struct Geol 74:105–116
Li JG, Yu ZQ, Zhou ZY, Wang YC, Li JW (2021a) Mechanical analysis and failure modes prediction of composite rock under uniaxial compression. Sci Rep 11:22826
Li L, Hu J, Li S, Qin C, Liu H, Chen D, Wang J (2021b) Development of a novel triaxial rock testing method based on biaxial test apparatus and its application. Rock Mech Rock Eng 54:1597–1607
Li S, Zhu W, Niu L, Guan K, Xu T (2021c) Experimental study on creep of double-rock samples disturbed by dynamic impact. Int J Rock Mech Min Sci 146:104895
Li WF, Bai JB, Cheng JY, Peng S, Liu HL (2015b) Determination of coal–rock interface strength by laboratory direct shear tests under constant normal load. Int J Rock Mech Min Sci 77:60–67
Lin Q, Cao P, Wen G, Meng J, Cao R, Zhao Z (2021) Crack coalescence in rock-like specimens with two dissimilar layers and pre-existing double parallel joints under uniaxial compression. Int J Rock Mech Min Sci 139:104621
Liu J, Wu N, Si G, Zhao M (2020) Experimental study on mechanical properties and failure behaviour of the pre-cracked coal-rock combination. Bull Eng Geol Environ 80:2307–2321
Liu XS, Tan YL, Ning JG, Lu YW, Gu Q (2018) Mechanical properties and damage constitutive model of coal in coal-rock combined body. Int J Rock Mech Min Sci 110:140–150
Ma Q, Tan Y, Liu X, Gu Q, 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
Rahjoo M, Eberhardt E (2021) Development of a 3-D confinement-dependent dilation model for brittle rocks; part 1, derivation of a cartesian plastic strain increments ratios approach for non-potential flow rules. Int J Rock Mech Min Sci 145:104668
Schopfer MP, Arslan A, Walsh JJ, Childs C (2011) Reconciliation of contrasting theories for fracture spacing in layered rocks. J Struct Geol 33:551–565
Teufel LW, Clark JA (1984) Hydraulic fracture propagation in layered rock: experimental studies of fracture containment. Soc Pet Eng J 24(01):19–32
Wang T, Jiang Y, Zhan S, Wang C (2014) Frictional sliding tests on combined coal-rock samples. J Rock Mech Geotech Eng 6(3):280–286
Xiong QQ, Hampton JC (2020) Non-local triggering in rock fracture. J Geophys Res Solid Earth 125:e2020JB020403
Yin DW, Chen SJ, Chen B, Liub XQ, Ma HF (2018) Strength and failure characteristics of the rock–coal combined body with single joint in coal. Geomech Eng 15:1113–1124
Yin DW, Chen SJ, Ge Y, Liu R (2021) Mechanical properties of rock–coal bi-material samples with different lithologies under uniaxial loading. J Mater Res Technol 10:322–338
Zhang HW, Elsworth D, Wan ZJ (2018) Failure response of composite rock–coal samples. Geomech Geophys Geo-Energy Geo-Resources 4:175–192
Zhang JZ, Wu WT, Zhou XP (2023a) On the predictability of localization instabilities of quasibrittle materials from accelerating rates of acoustic emission. Eng Fract Mech 289:109455
Zhang JZ, Zhou XP (2017) Time-dependent jamming mechanism for Single-Shield TBM tunneling in squeezing rock. Tunn Undergr Sp Technol 69:209–222
Zhang JZ, Zhou XP (2020) Forecasting catastrophic rupture in brittle rocks using precursory AE time series. J Geophys Res Solid Earth 125(8):e2019JB019276
Zhang JZ, Zhou XP (2020b) AE event rate characteristics of flawed granite: from damage stress to ultimate failure. Geophys J Int 222(2):795–814
Zhang JZ, Zhou XP, Du YH (2023b) Cracking behaviors and acoustic emission characteristics in brittle failure of flawed sandstone: a true triaxial experiment investigation. Rock Mech Rock Eng 56:167–182
Zhang JZ, Zhou XP, Zhou L, Berto F (2019) Progressive failure of brittle rocks with non-isometric flaws: insights from acousto-optic-mechanical (AOM) data. Fatigue Fract Eng Mater Struct 42:1787–1802
Zhang T, Chen QZ, Zhang JZ, Zhou XP (2023c) Infuences of mechanical contrast on failure characteristics of layered composite rocks under true-triaxial stresses. Rock Mech Rock Eng 56:5363–5381
Zhao J, Feng XT, Zhang X, Yang C, Zhou Y (2018) Time-dependent behaviour and modeling of Jinping marble under true triaxial compression. Int J Rock Mech Min Sci 110:218–230
Zhao Z, Wang W, Wang L, Dai C (2015) Compression–shear strength criterion of coal–rock combination model considering interface effect. Tunn Undergr Sp Technol 47:193–199
Zhou XP, Peng SL, Zhang JZ, Qian QH, Lu RC (2018) Predictive acoustical behavior of rockburst phenomena in Gaoligongshan tunnel, Dulong river highway, China. Eng Geol 247:117–128
Zhou XP, Wang LF (2021) Investigating propagation path of interface crack by the field-enriched finite element method. Appl Math Model 99:81–105
Zhou XP, Zhang JZ (2021) Damage progression and acoustic emission in brittle failure of granite and sandstone. Int J Rock Mech Min Sci 143:104789
Zhou XP, Zhang JZ, Berto F (2020) Fracture analysis in brittle sandstone by digital imaging and AE techniques: role of flaw length ratio. J Mater Civ Eng 32:4020085
Zhou XP, Zhang JZ, Yang S, Berto F (2021) Compression-induced crack initiation and growth in flawed rocks: a review. Fatigue Fract Eng Mater Struct 44:1681–1707
Zhou XP, Zhang JZ, Qian QH, Niu Y (2019) Experimental investigation of progressive cracking processes in granite under uniaxial loading using digital imaging and AE techniques. J Struct Geol 126:129–145
Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 52109124), the Open Fund Key Laboratory of Deep Earth Science and Engineering (Sichuan University) (Grant No. DESE202204), the Fujian Provincial Young and Middle-aged Teachers’ Educational Research Project (Grant No. JAT220022), the Fuzhou University Talent Introduction Research Initiation Fund (Grant No. XRC-21073 and XRC-22059).
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Zhang, JZ., Gu, TT., Zhan, RF. et al. Initiation and Propagation of Interface Cracks in Layered Composite Rocks: An Investigation Using True Triaxial Experiments. Geotech Geol Eng 42, 2709–2723 (2024). https://doi.org/10.1007/s10706-023-02700-5
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DOI: https://doi.org/10.1007/s10706-023-02700-5