不同含水状态下裂隙砂岩的声发射及裂纹扩展试验研究

朱子辉 郭佳奇 孙飞跃 张恒源

朱子辉, 郭佳奇, 孙飞跃, 张恒源. 不同含水状态下裂隙砂岩的声发射及裂纹扩展试验研究[J]. 高压物理学报, 2023, 37(5): 054103. doi: 10.11858/gywlxb.20230665
引用本文: 朱子辉, 郭佳奇, 孙飞跃, 张恒源. 不同含水状态下裂隙砂岩的声发射及裂纹扩展试验研究[J]. 高压物理学报, 2023, 37(5): 054103. doi: 10.11858/gywlxb.20230665
ZHU Zihui, GUO Jiaqi, SUN Feiyue, ZHANG Hengyuan. Experimental Study on Acoustic Emission and Crack Propagation of Fissured Sandstone with Different Moisture States[J]. Chinese Journal of High Pressure Physics, 2023, 37(5): 054103. doi: 10.11858/gywlxb.20230665
Citation: ZHU Zihui, GUO Jiaqi, SUN Feiyue, ZHANG Hengyuan. Experimental Study on Acoustic Emission and Crack Propagation of Fissured Sandstone with Different Moisture States[J]. Chinese Journal of High Pressure Physics, 2023, 37(5): 054103. doi: 10.11858/gywlxb.20230665

不同含水状态下裂隙砂岩的声发射及裂纹扩展试验研究

doi: 10.11858/gywlxb.20230665
基金项目: 国家自然科学基金(52178388);河南省自然科学基金(212300410146);河南省科技攻关项目(212102310292)
详细信息
    作者简介:

    朱子辉(1999-),男,硕士研究生,主要从事隧道与地下工程防灾减灾研究.E-mail:zzhleo6@163.com

    通讯作者:

    郭佳奇(1981-),男,博士,教授,博士生导师,主要从事隧道与地下工程防灾减灾研究.E-mail:gjq519@163.com

  • 中图分类号: O347; TU45

Experimental Study on Acoustic Emission and Crack Propagation of Fissured Sandstone with Different Moisture States

  • 摘要: 为进一步揭示不同含水状态陡倾裂隙砂岩的裂纹扩展规律及破坏特征,开展了干燥、自然与饱水3种含水状态下陡倾裂隙砂岩的单轴压缩试验,采用声发射技术和数字图像相关技术,分析了不同含水状态对裂隙砂岩力学特性、声发射特性及裂纹演化特征的影响。结果表明:水的存在对裂隙砂岩的抗压强度、弹性模量及峰值应变具有明显劣化作用,随着含水率增加,各力学参数呈现出近线性递减的变化趋势;不同含水状态下裂隙砂岩的宏观破坏模式均表现为H形张拉-剪切混合破坏,且张拉裂纹随含水率的增加而增多,次生裂纹也主要以张拉裂纹的形式扩展;裂隙砂岩的声发射能量计数随含水率的增加逐渐削弱,累计能量曲线呈现出明显的阶段性特征,且不同含水状态下其分布特征差异明显,结合声发射与数字图像相关技术两种分析方法,有助于从宏细观角度揭示裂隙砂岩的裂纹演化规律,依据应变局部化带可有效预测裂纹萌生与扩展方向,含水率的增加加快了裂纹萌生速率,减缓了加载后期裂纹扩展速率;基于声发射参数的微裂纹分析结果与宏观破坏模式基本一致,不同含水状态对裂隙砂岩拉剪裂纹的影响差异明显,含水率的增加促进了裂隙砂岩内部张拉裂纹的发育,进而抑制了剪切裂纹的发育。研究结果可为受水影响下裂隙岩石的稳定性评估及监测研究提供相关参考。

     

  • 图  裂隙砂岩加工成品及预制裂隙布置

    Figure  1.  Fissured sandstone processing products and fissure layout

    图  岩石力学试验系统

    Figure  2.  Rock mechanics test system

    图  不同含水状态下裂隙砂岩的应力-应变曲线及力学参数变化

    Figure  3.  Stress-strain curves and mechanical parameters variations of fissured sandstone with different moisture states

    图  不同含水状态下裂隙砂岩的宏观破坏模式

    Figure  4.  Macroscopic failure modes of fissured sandstone with different moisture states

    图  不同含水状态下裂隙砂岩的声发射能量与累计能量随时间变化曲线以及裂纹扩展过程

    Figure  5.  Curve of acoustic emission energy and cumulative energy with time and crack propagation process of fissured sandstone with different mositure states

    图  声发射参数表征及拉剪裂纹分类方法

    Figure  6.  Acoustic emission parameters characterization and tensile-shear crack classification method

    图  不同含水状态下裂隙砂岩的RA-AF散点密度分布

    Figure  7.  RA-AF scatter density distribution of fissured sandstone with different moisture states

    图  不同含水状态下裂隙砂岩拉剪裂纹演化规律

    Figure  8.  Evolution law of tensile-shear cracks in fissured sandstone with different moisture states

    表  1  试样信息

    Table  1.   Information of the specimens

    SampleStateDiameter/mmHeight/mmMass/gw/%
    D-60Dry49.8399.94459.260
    N-60Natural49.7999.46466.141.476
    S-60Saturated49.71100.03481.224.563
    下载: 导出CSV
  • [1] 佘诗刚, 林鹏. 中国岩石工程若干进展与挑战 [J]. 岩石力学与工程学报, 2014, 33(3): 433–457. doi: 10.13722/j.cnki.jrme.2014.03.001

    SHE S G, LIN P. Some developments and challenging issues in rock engineering field in China [J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(3): 433–457. doi: 10.13722/j.cnki.jrme.2014.03.001
    [2] 陈卫忠, 杨建平, 邹喜德,等. 裂隙岩体宏观力学参数研究 [J]. 岩石力学与工程学报, 2008, 201(8): 1569–1575. doi: 10.3321/j.issn:1000-6915.2008.08.005

    CHEN W Z, YANG J P, ZOU X D, et al. Research on macromechanical parameters of fractured rock mass [J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 201(8): 1569–1575. doi: 10.3321/j.issn:1000-6915.2008.08.005
    [3] CAO P, LIU T, PU C, et al. Crack propagation and coalescence of brittle rock-like specimens with pre-existing cracks in compression [J]. Engineering Geology, 2015, 187: 113–121. doi: 10.1016/j.enggeo.2014.12.010
    [4] CHEN J, YE Y B, PU Y Y, et al. Experimental study on uniaxial compression failure modes and acoustic emission characteristics of fissured sandstone under water saturation [J]. Theoretical and Applied Fracture Mechanics, 2022, 119: 103359. doi: 10.1016/j.tafmec.2022.103359
    [5] ZHAO K, YANG D X, ZENG P, et al. Effect of water content on the failure pattern and acoustic emission characteristics of red sandstone [J]. International Journal of Rock Mechanics and Mining Sciences, 2021, 142: 104709. doi: 10.1016/j.ijrmms.2021.104709
    [6] 姚强岭, 王伟男, 杨书懿,等. 含水率影响下砂质泥岩直剪特性及声发射特征 [J]. 煤炭学报, 2021, 46(9): 2910–2922. doi: 10.13225/j.cnki.jccs.2020.0903

    YAO Q L, WANG W N, YANG S Y, et al. Direct shear and acoustic emission characteristics of sandy mudstone under the effect of moisture content [J]. Journal of China Coal Society, 2021, 46(9): 2910–2922. doi: 10.13225/j.cnki.jccs.2020.0903
    [7] 滕腾, 王玉明, 李召龙,等. 干燥和饱水状态下砂质泥岩拉压变形破坏过程能量演化对比研究 [J]. 采矿与安全工程学报, 2023, 40(1): 174–183. doi: 10.13545/j.cnki.jmse.2021.0633

    TENG T, WANG Y M, LI Z L, et al. Contrastive analysis of energy evolution in the tension and compression deformation processes of dry and water-saturated sandy mudstone [J]. Journal of Mining & Safety Engineering, 2023, 40(1): 174–183. doi: 10.13545/j.cnki.jmse.2021.0633
    [8] 冯国瑞, 文晓泽, 郭军,等. 含水率对煤样声发射特征和碎块分布特征影响的试验研究 [J]. 中南大学学报(自然科学版), 2021, 52(8): 2910–2918.

    FENG G R, WEN X Z, GUO J, et al. Study on influence of moisture content on coal sample AE properties and fragment distribution characteristics [J]. Journal of Central South University (Science and Technology), 2021, 52(8): 2910–2918.
    [9] YANG S Q. Crack coalescence behavior of brittle sandstone samples containing two coplanar fissures in the process of deformation failure [J]. Engineering Fracture Mechanics, 2011, 78(17): 3059–3081. doi: 10.1016/j.engfracmech.2011.09.002
    [10] LI H R, SHEN R X, LI D X, et al. Acoustic emission multi-parameter analysis of dry and saturated sandstone with cracks under uniaxial compression [J]. Energies, 2019, 12(10): 1959. doi: 10.3390/en12101959
    [11] QIAN R P, FENG G R, GUO J, et al. Experimental investigation of mechanical characteristics and cracking behaviors of coal specimens with various fissure angles and water-bearing states [J]. Theoretical and Applied Fracture Mechanics, 2022, 120: 103406. doi: 10.1016/j.tafmec.2022.103406
    [12] 康向涛, 刘勇, 江成玉,等. 含水率对预制裂纹煤样能耗与破坏模式的影响 [J]. 中国安全科学学报, 2017, 27(7): 94–98. doi: 10.16265/j.cnki.issn1003-3033.2017.07.017

    KANG X T, LIU Y, JIANG C Y, et al. Influence of water content on energy consumption and destruction form of coal samples with prefabricated crack [J]. China Safety Science Journal, 2017, 27(7): 94–98. doi: 10.16265/j.cnki.issn1003-3033.2017.07.017
    [13] SONG C, FENG G R, QIAN R P, et al. Effect of water on mechanical properties and fracture evolution of fissured sandstone under uniaxial compression: insights from experimental investigation [J]. Lithosphere, 2022, 2021(7): 5432283.
    [14] 张科, 蔡晨曦, 张凯,等. 饱水裂隙砂岩力学及前兆异常特征量化分析 [J]. 煤炭学报, 2021, 46(Suppl 1): 200–210. doi: 10.13225/j.cnki.jccs.2020.1279

    ZHANG K, CAI C X, ZHANG K, et al. Quantitative analysis on mechanical and precursory anomaly properties of water-saturated sandstone containing a flaw [J]. Journal of China Coal Society, 2021, 46(Suppl 1): 200–210. doi: 10.13225/j.cnki.jccs.2020.1279
    [15] 杨科, 张寨男, 池小楼,等. 循环载荷下含水砂岩裂纹演化与损伤特征试验研究 [J]. 岩土力学, 2022, 43(7): 1791–1802.

    YANG K, ZHANG Z N, CHI X L, et al. Experimental study on crack evolution and damage characteristics of water bearing sandstone under cyclic loading [J]. Rock and Soil Mechanics, 2022, 43(7): 1791–1802.
    [16] KOVARI K, TISA A, EINSTEIN H H. Suggested methods for determining the strength of rock materials in triaxial compression: revised version [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1983, 20(6): 285–290.
    [17] BLABER J, ADAIR B, ANTONIOU A. Ncorr: open-source 2D digital image correlation Matlab software [J]. Experimental Mechanics, 2015, 55(6): 1105–1122. doi: 10.1007/s11340-015-0009-1
    [18] WONG L N Y, EINSTEIN H H. Systematic evaluation of cracking behavior in specimens containing single flaws under uniaxial compression [J]. International Journal of Rock Mechanics and Mining Sciences, 2009, 46(2): 239–249. doi: 10.1016/j.ijrmms.2008.03.006
    [19] YANG S Q, JING H W. Strength failure and crack coalescence behavior of brittle sandstone samples containing a single fissure under uniaxial compression [J]. International Journal of Fracture, 2011, 168(2): 227–250. doi: 10.1007/s10704-010-9576-4
    [20] 王举国. 钢筋混凝土梁受弯破坏过程的声发射能量特性分析 [D]. 扬州: 扬州大学, 2021: 39−40.

    WANG J G. Study on acoustic emission energy characteristics of reinforced concrete beams during flexural failure [D]. Yangzhou: Yangzhou University, 2021: 39−40.
    [21] LIU L, LI H, LI X, et al. Full-field strain evolution and characteristic stress levels of rocks containing a single pre-existing flaw under uniaxial compression [J]. Bulletin of Engineering Geology and the Environment, 2020, 79: 3145–3161. doi: 10.1007/s10064-020-01764-4
    [22] 张科, 齐飞飞, 陈宇龙. 基于3D打印和DIC技术的裂隙网络模型变形破裂特征及填充物影响效应 [J]. 岩土力学, 2020, 41(8): 2555–2563.

    ZHANG K, QI F F, CHEN Y L. Deformation and fracturing characteristics of fracture network model and influence of filling based on 3D printing and DIC technologies [J]. Rock and Soil Mechanics, 2020, 41(8): 2555–2563.
    [23] YAO Q L, CHEN T, TANG C J, et al. Influence of moisture on crack propagation in coal and its failure modes [J]. Engineering Geology, 2019, 258: 105156. doi: 10.1016/j.enggeo.2019.105156
    [24] ZHOU Z L, CAI X, MA D, et al. Effects of water content on fracture and mechanical behavior of sandstone with a low clay mineral content [J]. Engineering Fracture Mechanics, 2018, 193: 47–65. doi: 10.1016/j.engfracmech.2018.02.028
    [25] AGGELIS D G. Classification of cracking mode in concrete by acoustic emission parameters [J]. Mechanics Research Communications, 2011, 38(3): 153–157. doi: 10.1016/j.mechrescom.2011.03.007
    [26] 甘一雄, 吴顺川, 任义, 等. 基于声发射上升时间/振幅与平均频率值的花岗岩劈裂破坏评价指标研究 [J]. 岩土力学, 2020, 41(7): 2324–2332. doi: 10.16285/j.rsm.2019.1460

    GAN Y X, WU S C, REN Y, et al. Evaluation indexes of granite splitting failure based on RA and AF of AE parameters [J]. Rock and Soil Mechanics, 2020, 41(7): 2324–2332. doi: 10.16285/j.rsm.2019.1460
    [27] 张恒源, 郭佳奇, 孙飞跃,等. 不同试验条件和含水状态下花岗岩的声发射与破裂演化特征 [J]. 高压物理学报, 2022, 36(6): 064102. doi: 10.11858/gywlxb.20220577

    ZHANG H Y, GUO J Q, SUN F Y, et al. Acoustic emission and fracture evolution characteristics of granite under different testing and moisture conditions [J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 064102. doi: 10.11858/gywlxb.20220577
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出版历程
  • 收稿日期:  2023-05-17
  • 修回日期:  2023-06-06
  • 网络出版日期:  2023-10-07
  • 刊出日期:  2023-11-07

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