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| Damage evolution of Biotite quartz schist caused by mineral directional arrangement under cyclic loading and unloading |
| BAO Han1，PEI Runsheng1，LAN Hengxing2，YAN Changgen1，XU Jiangbo1，ZHAI Yong1，3，XU Xunhui1 |
(1. School of Highway，Chang¢an University，Xi¢an，Shaanxi 710064，China；2. Institute of Geographic Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China；3. Jiangxi Communications Investment Group Project Construction Management Company，Nanchang，Jiangxi 330000，China)
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Abstract The biotite quartz schist is a typical anisotropic rock caused by mineral arrangement. In order to study its damage evolution law and anisotropic characteristics，the equal plastic strain cyclic loading and unloading tests with acoustic-force joint measurement were carried out on the samples with schistosity angles of 0°，45° and 90°. The results show that，with increasing the plastic strain，the variation trends of the initiation strength ，the damage strength and the peak strength of three kinds of samples are similar，and the plastic strains corresponding to stable and are same. For the 45°samples with strong control effects by schistosity，the confining pressure has little influence on the evolution of the strength characteristic value ratio，and the damage can fastly reach a stable state with growing the plastic strain. During the evolution of the shear strength parameters，the variation rate of the shear strength parameters of the group samples with a schistosity angle of 45° is the largest based on the critical plastic strain of the cohesive and the friction angle，followed by 0° and 90°， showing that the cohesion rapidly losses while the friction angle rapidly increases when the effect of schistosity control is strong. The corresponding plastic strain of the integrity coefficient evolving to a stable state is the same as that of . However，the different schistosity angles have different effects on acoustic transmission，resulting in the differential evolution of the integrity coefficient under different confining pressures，especially for the samples with a schistosity angle of 90°. This study explores the special mechanical behaviors of the damage evolution of anisotropic rock caused by the directional arrangement of minerals according to the analysis of quantitative indexes.
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[1] 张晓平，王思敬，韩庚友，等. 岩石单轴压缩条件下裂纹扩展试验研究——以片状岩石为例[J]. 岩石力学与工程学报，2011，30(9)：1 772–1 781.(ZHANG Xiaoping，WANG Sijing，HAN Gengyou，et al. Crack propagation study of rock based on uniaxial compressive test：a case study of schistose rock[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(9)：1 772–1 781.(in Chinese))
[2] GUO S，QI S，ZHAN Z，et al. Plastic-strain-dependent strength model to simulate the cracking process of brittle rocks with an existing non-persistent joint[J]. Engineering Geology，2017，231：114–125.
[3] BRACE W F，PAULDING B W，SCHOLZ C. Dilatancy in the fracture of crystalline rocks[J]. Journal of Geophysical Research，1966，71(16)：3 939–3 953.
[4] BIENIAWSKI Z T. Mechanisms of brittle fracture of rock：Part I：Theory of the fracture process；Part II：Experimental studies；Part III：fracture under tension and under long term loading[J]. International Journal of Rock Mechanics and Mining Science，1967，4(4)：395–430.
[5] HALLBAUER D K，WAGNER H，COOK N. Some observations concerning the microscopic and mechanical behaviour of quartzite specimens in stiff，triaxial compression tests[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1973，10(6)：713–726.
[6] 李鹏飞，赵星光，蔡美峰，等. 压缩条件下岩石启裂应力的识别方法探讨——以新疆天湖花岗闪长岩为例[J]. 岩土力学，2015，36(8)：2 323–2 331.(LI Pengfei，ZHAO Xingguang，CAI Meifeng，et al. Discussion on approaches to identifying cracking initiation stress of rocks under compression condition：a case study of Tianhu granodiorite in Xinjiang Autonomous Region[J]. Rock and Soil Mechanics，2015，36(8)：2 323–2 331.(in Chinese))
[7] 李存宝，谢和平，谢凌志. 页岩起裂应力和裂纹损伤应力的试验及理论[J]. 煤炭学报，2017，42(4)：969–976.(LI Cunbao，XIE Heping，XIE Lingzhi. Experimental and theoretical study on the shale crack initiation stress and crack damage stress[J]. Journal of China Coal Society，2017，42(4)：969–976.(in Chinese))
[8] MARTIN C D. The strength of massive lac du bonnet granite around underground openings[Ph. D. Thesis][D]. Manitoba，Canada：University of Manitoba，1993.
[9] 栗 青，常兆荣，高 阳，等. 隐晶质玄武岩的应变演化规律与强度破坏特征[J]. 沈阳工业大学学报，2021，https：//kns.cnki.net/kcms/detail/ 21.1189.T.20210318.0851.002.html.(LI Qing，CHANG Zhaorong，GAO Yang，et al. Strain evolution rule and strength failure characteristics of aphanitic basalt[J]. Journal of Shenyang University of Technology，2021，https://kns.cnki.net/kcms/detail/21.1189.T.20210318.0851.002.html. (in Chinese))
[10] BASU A，MISHRA D A. A method for estimating crack-initiation stress of rock materials by porosity[J]. Journal of the Geological Society of India，2014，84(4)：397–405.
[11] ZHAO X G，CAI M F，WANG J，et al. Objective determination of crack initiation stress of brittle rocks under compression using AE measurement[J]. Rock Mechanics and Rock Engineering，2015，48(6)：2 473–2 484.
[12] RUI K，FENG X T，ZHANG X，et al. Study on crack initiation and damage stress in sandstone under true triaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences，2018，106(6)：117–123.
[13] 郭清露，荣 冠，姚孟迪，等. 大理岩热损伤声发射力学特性试验研究[J]. 岩石力学与工程学报，2015，34(12)：2 388–2 400.(GUO Qinglu，RONG Guan，YAO Mengdi，et al. Experimental study on acoustic emission characteristics and mechanical behaviours of thermally damaged marble[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(12)：2 388–2 400.(in Chinese))
[14] 孟召平，潘结南，刘亮亮，等. 含水量对沉积岩力学性质及其冲击倾向性的影响[J]. 岩石力学与工程学报，2009，28(增1)：2 637–2 643. (MENG Zhaoping，PAN Jienan，LIU Liangliang，et al. Influence of moisture contents on mechanical properties of sedimentary rock and its bursting potential[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 637–2 643.(in Chinese))
[15] WEI L，LIU Q S，LIU X W. An improved crack initiation stress criterion for brittle rocks under confining stress[C]// IOP Conference Series：Earth and Environmental Science. [S. l.]：IOP Publishing，2018，170(2)：022141.
[16] CHENG H，ZHOU X，ZHU J，et al. The effects of crack openings on crack initiation，propagation and coalescence behavior in rock-like materials under uniaxial compression[J]. Rock Mechanics and Rock Engineering，2016，49(9)：1–14.
[17] EBERHARDT E，STEAD D，STIMPSON B. Quantifying progressive pre-peak brittle fracture damage in rock during uniaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences，1999，36(3)：361–380.
[18] 刘 宁，张春生，褚卫江. 锦屏深埋大理岩破裂特征与损伤演化规律[J]. 岩石力学与工程学报，2012，31(8)：1 606–1 613.(LIU Ning，ZHANG Chunsheng，CHU Weijiang. Fracture characteristic and damage evolution law of Jinping deep marble[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1 606–1 613.(in Chinese))
[19] JIE M，WANG Z G. An experimental and numerical investigation on the initiation and interaction of double cracks in rocks under hydromechanical coupling[J]. Advances in Materials Science and Engineering，2020，2020(4)：1–13.
[20] YANG W M，GENG Y，ZHOU Z Q，et al. DEM numerical simulation study on fracture propagation of synchronous fracturing in a double fracture rock mass[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，2020，6(2)：1–19.
[21] ZHANG Z，WANG S，WANG C，et al. A study on rock mass crack propagation and coalescence simulation based on improved numerical manifold method(NMM)[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，2021，7(1)：1–16.
[22] HAJIABDOLMAJID V，KAISER P K，MARTIN C D. Modelling brittle failure of rock[J]. International Journal of Rock Mechanics and Mining Sciences，2002，39(6)：731–741.
[23] 吴 成，张 平. 高地应力硬岩洞室开挖破坏区数值模拟方法探讨[J]. 水文地质工程地质，2012，39(6)：35–42.(WU Cheng，ZHANG Ping. Analysis of numerical simulation methods for excavation failure zone of deep underground opening in hard rocks with high geostress[J]. Hydrogelogy and Engineering Geology，2012，39(6)：35–42.(in Chinese))
[24] 尤明庆，苏承东，徐 涛. 岩石试样的加载卸载过程及杨氏模量[J].岩土工程学报，2001，23(5)：588–592.(YOU Mingqing，SU Chengdong，XU Tao. Loading or unloading process in axial direction and Young' s modulus of rock specimen[J]. Chinese Journal of Geotechnical Engineering，2001，23(5)：588–592.(in Chinese))
[25] 王登科，曾凡超，王建国，等. 显微工业CT的受载煤样裂隙动态演化特征与分形规律研究[J]. 岩石力学与工程学报，2020，39(6)：1 165–1 174.(WANG Dengke，ZENG Fanchao，WANG Jianguo，et al. Dynamic evolution characteristics and fractal law of loaded coal fractures by micro industrial CT[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(6)：1 165–1 174.(in Chinese))
[26] HUANG Y H，YANG S Q，HALL M，et al. The effects of NaCl concentration and confining pressure on mechanical and acoustic behaviors of brine-saturated sandstone[J]. Energies，2018，11(2)：385.
[27] BROWNING J，MEREDITH P G，STUART C E，et al. Acoustic characterization of crack damage evolution in sandstone deformed under conventional and true triaxial loading[J]. Journal of Geophysical Research：Solid Earth，2017，122(6)：4 395–4 412.
[28] 王 宇，李 晓，胡瑞林，等. 岩土超声波测试研究进展及应用综述[J]. 工程地质学报，2015，23(2)：287–300.(WANG Yu，LI Xiao，HU Ruilin，et al. Review of research process and application of ultrasonic testing for rock and soil[J]. Journal of Engineering Geology，2015，23(2)：287–300.(in Chinese))
[29] ZHOU J W，YANG X G，XING H G，et al. Assessment of the excavation-damaged zone in a tall rock slope using acoustic testing method[J]. Geotechnical and Geological Engineering，2014，32(4)：1 149–1 158.
[30] MARTIN C D，CHANDLER N A，The progressive fracture of Lac du Bonnet granite[J]. International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts，1994，31(6)：643–659.
[31] 储超群，吴顺川，张诗淮，等. 层状砂岩力学行为各向异性与破裂特征[J]. 中南大学学报：自然科学版，2020，51(8)：2 232–2 246. (CHU Chaoqun，WU Shunchuan，ZHANG Shihuai，et al. Mechanical behavior anisotropy and fracture characteristics of bedded sandstone[J]. Journal of Central South University：Science and Technology，2020，51(8)：2 232–2 246.(in Chinese))
[32] ESLAMI J，GRGIC D，HOXHA D. Estimation of the damage of a porous limestone from continuous(P- and S-) wave velocity measurements under uniaxial loading and different hydrous conditions[J]. Geophysical Journal International，2010，183(3)：1 362–1 375.
[33] 冒海军，杨春和. 结构面对板岩力学特性影响研究[J]. 岩石力学与工程学报，2005，24(20)：53–58.(MAO Haijun，YANG Chunhe. Study on effects of discontinuities on mechanical characters of slate[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(20)：53–58.(in Chinese))
[34] 王燚钊，侯 冰，王 栋，等. 页岩油多储集层穿层压裂缝高扩展特征[J]. 石油勘探与开发，2021，48(2)：402–410.(WANG Yanzhao，HOU Bing，WANG Dong，et al. Features of fracture height propagation in cross-layer fracturing of shale oil reservoirs[J]. Petroleum Exploration and Development，2021，48(2)：402–410.(in Chinese))
[35] GODFREY N J，CHRISTENSEN N I，OKAYA D A. Anisotropy of schists： Contribution of crustal anisotropy to active source seismic experiments and shear wave splitting observations[J]. Journal of Geophysical Research Atmospheres，2000，105(B12)：27 991–28 007.
[36] 谭 鑫，HEINZ K. 含层理构造的非均质片麻岩巴西劈裂试验及离散单元法数值模拟研究[J]. 岩石力学与工程学报，2014，33(5)：938–946.(TAN Xin，HEINZ K. Brazilian split tests and numerical simulation by discrete element method for heterogeneous gneiss with bedding structure[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：938–946.(in Chinese))
[37] LI C B，XIE H P，WANG J. Anisotropic characteristics of crack initiation and crack damage thresholds for shale[J]. International Journal of Rock Mechanics and Mining Sciences，2020，126(12)：104178.
[38] YAN C L，DENG J G，HU L B，et al. Brittle failure of shale under uniaxial compression[J]. Arabian Journal of Geosciences，2015，8(5)：2 467–2 475.
[39] 尹晓萌，晏鄂川，王鲁男，等. 各向异性片岩的微观组构信息定量提取与断面形貌特征分析[J]. 岩土力学，2019，40(7)：2 617–2 627. (YIN Xiaomeng，YAN Echuan，WANG Lunan，et al. Quantitative microstructure information extraction and microscopic morphology analysis of anisotropic schist[J]. Rock and Soil Mechanics，2019，40(7)：2 617–2 627.(in Chinese))
[40] 吴福宝. 云母石英片岩片理面力学特征试验研究[J]. 岩土工程学报，2019，41(增1)：117–120.(WU Fubao. Experimental study on mechanical characteristics of mica quartz schist foliation surface[J]. Chinese Journal of Geotechnical Engineering，2019，41(Supp.1)：117–120.(in Chinese))
[41] 齐 群，包 含，晏长根，等. 黑云母石英片岩巴西劈裂试验的破坏特征研究[J]. 三峡大学学报：自然科学版，2019，41(6)：65–70. (QI Qun，BAO Han，YAN Changgen，et al. Study on failure characteristics of biotite quartz schist under Brazilian test[J]. Journal of China Three Gorges University：Natural Science，2019，41(6)：65–70.(in Chinese))
[42] BAO H，WU F，XI P，et al. A new method for assessing slope unloading zones based on unloading strain[J]. Environmental Earth Sciences，2020，79(14)：1–13.
[43] 刘胜利，陈善雄，余 飞，等. 绿泥石片岩各向异性特性研究[J]. 岩土力学，2012，33(12)：3 616–3 623.(LIU Shengli，CHEN Shanxiong，YU Fei，et al. Anisotropic properties study of chlorite schist[J]. Rock and Soil Mechanics，2012，33(12)：3 616–3 623.(in Chinese))
[44] HAJIABDOLMAJID V，KAISER P，MARTIN C D. Mobilised strength components in brittle failure of rock[J]. Géotechnique，2003，53(3)：327–336.
[45] HAJIABDOLMAJID V，KAISER P K. Brittleness of rock and stability assessment in hard rock tunneling[J]. Tunnelling and Underground Space Technology，2003，18(1)：35–48.
[46] 刘泉声，魏 莱，雷 峰，等. 砂岩裂纹起裂损伤强度及脆性参数演化试验研究[J]. 岩土工程学报，2018，40(10)：1 782–1 789.(LIU Quansheng，WEI Lai，LEI Feng，et al. Experimental study on damage strength of crack initiation and evaluation of brittle parameters of sandstone[J]. Chinese Journal of Geotechnical Engineering，2018，40(10)：1 782–1 789.(in Chinese)) |
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2021, Vol. 40 
