Abstract
This study investigated the shear performance and failure mechanism of a complicated jointed rock mass by simulating the compression and shear of a layered jointed rock mass through the global insertion of a zero-thickness cohesive element. The feasibility of the model was confirmed through the comparison between the results of the indoor shear test and numerical simulation. Then, we studied the macro- and mesoscopic mechanical properties of jointed rock mass from the aspects of deformation and failure characteristics and shear strength variation. The major findings of this study are as follows. First, the stress concentration and shear failure of double-joint layered rock mass occur initially in the interlayer. The double-joint rock mass in the shear process suffers from not only the slip failure of the joint plane but also the brittle failure of the interlayer, which complicates the stress state of double-joint rock mass. Second, the peak shear strength of double-joint rock mass is positively correlated with the normal load, while the change in the shear performance of the multijoint rock mass shows little relation with the roughness of the joint plane. Therefore, more attention should be given to the interlayer material strength during actual construction. During construction around a layered jointed rock mass, the confining pressure should be observed first, especially in areas with high ground stress, and the layered jointed rock mass should be reinforced in time. This study provides theoretical guidance and a scientific basis for tunnel excavation and support optimization in complex layered jointed rock masses.
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References
Bahaaddini M, Hagan PC, Mitra R, Khosravi MH (2016) Experimental and numerical study of asperity degradation in the direct shear test. Eng Geol 204:41–52. https://doi.org/10.1016/j.enggeo.2016.01.018
Ban LR, Qi CZ, Lu CS (2018) A direction-dependent shear strength criterion for rock joints with two new roughness parameters. Arab J Geosci 11(16):1–10. https://doi.org/10.1007/s12517-018-3818-6
Barton N (2013) Shear strength criteria for rock, rock joints, rockfill and rock masses: problems and some solutions. J Rock Mech Geotech Eng 04:249–261. https://doi.org/10.1016/j.jrmge.2013.05.008
Barton NR (1974) A review of the shear strength of field discontinuities in rock. In Proc. Rock Mechanics Meeting, Oslo, Nov. 1973 .FJELLSPRENGNING STEKNIKK-BERGMECHANIKK, TAPIR, OSLO. Int J Rock Mech Min Sci Geomech Abstr 12:55–56. https://doi.org/10.1016/0148-9062(75)90034-0
Carrier B, Granet S (2012) Numerical modeling of hydraulic fracture problem in permeable medium using cohesive zone model. Eng Fract Mech 79(2012):312–328. https://doi.org/10.1016/j.engfracmech.2011.11.012
Chen M, Li M, Wu Y, Kang B (2020) Simulation of hydraulic fracturing using different mesh types based on zero thickness cohesive element. Processes 96:94–108. https://doi.org/10.3390/pr8020189
Chiu CC, Weng MC, Shiu WJ (2021) Simulating flow in rock joints using a particulate interface model of a discrete element method. Bull Eng Geol Env 80(3):2789–2804. https://doi.org/10.1007/S10064-020-02072-7
Fereshtenejad S, Song JJ (2021) Applicability of powder-based 3D printing technology in shear behavior analysis of rock mass containing non-persistent joints. J Struct Geol 143:104251. https://doi.org/10.1016/J.JSG.2020.104251
Huang M, Hong CJ, Du SG, Luo ZY (2020) Experimental technology for the shear strength of the series-scale rock joint model. Rock Mech Rock Eng 53(12):5677–5695. https://doi.org/10.1007/s00603-020-02241-w
Kumar R, Verma AK (2016) Anisotropic shear behavior of rock joint replicas. Int J Rock Mech Min Sci 90:62–73. https://doi.org/10.1016/j.ijrmms.2016.10.005
Lê HK, Huang WC, Liao MC, Weng MC (2018) Spatial characteristics of rock joint profile roughness and mechanical behavior of a randomly generated rock joint. Eng Geol 245:97–105. https://doi.org/10.1016/j.enggeo.2018.06.017
Li L, Hagan PC, Saydam S, Hebblewhite B, Li Y (2016) Parametric study of rockbolt shear behaviour by double shear test. Rock Mech Rock Eng 49(12):4787–4797. https://doi.org/10.1007/s00603-016-1063-4
Li YC, Wu W, Tang CA, Liu B (2019) Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions. Int J Rock Mech Min Sci 120:108–118. https://doi.org/10.1016/j.ijrmms.2019.06.001
Liu HY, Su TM (2016) A dynamic damage constitutive model for a rock mass with non-persistent joints under uniaxial compression. Mech Res Commun 77:12–20. https://doi.org/10.1016/j.mechrescom.2016.08.006
Liu QS, Gan L, Wu ZJ, Zhou Y (2018) Analysis of spatial distribution of cracks caused by hydraulic fracturing based on zero-thickness cohesive elements. J China Coal Soc 43(S2):393–402. https://doi.org/10.13225/j.cnki.jccs.2018.1122 (in Chinese)
Liu QS, Tian YC, Liu DF, Jiang YL (2017a) Updates to JRC-JCS model for estimating the peak shear strength of rock joints based on quantified surface description. Eng Geol 228:282–300. https://doi.org/10.1016/j.enggeo.2017.08.020
Liu XG, Zhu WC, Zhou JR, Guan K (2017b) Direct shear tests and numerical simulation of double rough joints. Chin J Rock Mech Eng 36(S2):3831–3840. https://doi.org/10.13722/j.cnki.jrme.2017.0500 (in Chinese)
Meng FZ, Wong LNY, Zhou H, Zhang LM (2020) Asperity degradation characteristics of soft rock-like fractures under shearing based on acoustic emission monitoring. Eng Geol 266:105392. https://doi.org/10.1016/j.enggeo.2019.105392
Mohd-Nordin MM, Song KI, Kim D, Chang I (2016) Evolution of joint roughness degradation from cyclic loading and its effect on the elastic wave velocity. Rock Mech Rock Eng 49(8):3363–3370. https://doi.org/10.1007/s00603-015-0879-7
Nguyen VP, Lian H (2017) Modelling hydraulic fractures in porous media using flow cohesive interface elements. Eng Geol 225(2017):68–82. https://doi.org/10.1016/j.enggeo.2017.04.010
Saadat M, Taheri A (2020) A cohesive grain based model to simulate shear behaviour of rock joints with asperity damage in polycrystalline rock. Comput Geotech 117:103254. https://doi.org/10.1016/j.compgeo.2019.103254
Singh HK, Basu A (2016) Shear behaviors of ‘real’ natural un-matching joints of granite with equivalent joint roughness coefficients. Eng Geol 211:120–134. https://doi.org/10.1016/j.enggeo.2016.07.004
Singh HK, Basu A (2018) Evaluation of existing criteria in estimating shear strength of natural rock discontinuities. Eng Geol 232:171–181. https://doi.org/10.1016/j.enggeo.2017.11.023
Wang G, Zhang SB, Lian L (2019) Macro and micro study on shear failure mechanism of joint surface based on zero thickness cohesive element. Chin J Geotech Eng 41:2224–2232. https://doi.org/10.11779/CJGE201912007 (in Chinese)
Wang PT, Ren FH, Cai MF (2018) Mechanical analysis and size effect of rough discrete fractures network model under direct shear tests based on particle flow code. J China Coal Soc 43:976–983. https://doi.org/10.13225/j.cnki.jccs.2017.1061
Wang SH, Yin H, Zhang Z, Wei W (2021) A new prediction model for peak shear strength of rock joints considering the 3D morphology parameters. J Northeast Univ 42:1609–1617. https://doi.org/10.12068/j.issn.1005-3026.2021.11.013 (in Chinese)
Wu Z, Xu X, Liu Q, Yang Y (2018a) A zero-thickness cohesive element-based numerical manifold method for rock mechanical behavior with micro-Voronoi grains. Eng Anal Boundary Elem 96:94–108. https://doi.org/10.1016/j.enganabound.2018.08.005
Wu ZJ, Zhang PL, Liu QS, Li WF, Jiang WZ (2018b) Dynamic failure analysis of reinforced concrete slab based on cohesive element under explosive load. Eng Mech 35(08):79–90. https://doi.org/10.6052/j.issn.1000-4750.2017.04.0270 (in Chinese)
Xia CC, Tang ZC, Xiao WM, Song YL (2014) New peak shear strength criterion of rock joints based on quantified surface description. Rock Mech Rock Eng 47(2):387–440. https://doi.org/10.1007/s00603-013-0395-6
Xia CC, Yu QF, Qian X, Gui Y, Zhuang XQ (2020) Experimental study of shear-seepage behaviour of rock joints under constant normal stiffness. Rock Soil Mech 41:58–77. https://doi.org/10.16285/j.rsm.2018.2275 (in Chinese)
Xie D, Waas AM (2006) Discrete cohesive zone model for mixed-mode fracture using finite element analysis. Eng Fract Mech 73(13):1783–1796. https://doi.org/10.1016/j.engfracmech.2006.03.006
Xun JY, Zhang ZQ, Li N (2018) Particle flow simulation of staggered joint rock by direct shear tests. Hydro-Sci Eng 4:9–17. https://doi.org/10.16198/j.cnki.1009-640X.2018.04.002 (in Chinese)
Yang C, Tang J, Huang D, Wang L, Sun Q, Hu Z (2021) New crack initiation model for open-flawed rock masses under compression–shear stress. Theor Appl Fract Mech 116:103114. https://doi.org/10.1016/J.TAFMEC.2021.103114
Zhang QZ, Wu CZ, Fei XC, Liu DQ (2019) Time-dependent behavior of rock joints considering asperity degradation. J Struct Geol 121(1):43–50. https://doi.org/10.1016/j.jsg.2019.01.004
Zhao YL, Zhang LY, Wang WJ, Cheng GM (2020) Experimental study on shear behavior and a revised shear strength model for infilled rock joints. Int J Geomech 20(9):04020141. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001781
Zhao ZH, Peng H, Wu W, Chen YF (2018) Characteristics of shear-induced asperity degradation of rock fractures and implications for solute retardation. Int J Rock Mech Min Sci 105:53–61. https://doi.org/10.1016/j.ijrmms.2018.03.012
Funding
This work was supported by the National Natural Science Foundation of China (No. 51909150), the Postdoctoral Research Foundation of China (No. 2022M711962), the National Natural Science Foundation of China (No. 52009076), and the Young Elite Scientists Sponsorship Program by CAST (No. 2021QNRC001).
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Jiang, F., Wang, G., He, P. et al. Mechanical failure analysis during direct shear of double-joint rock mass. Bull Eng Geol Environ 81, 410 (2022). https://doi.org/10.1007/s10064-022-02930-6
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DOI: https://doi.org/10.1007/s10064-022-02930-6