Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 42 Issue 5
Turn off MathJax
Article Contents
Abstract
References
Related Articles
CHEN Guo-qing, CHEN Yi, SUN Xiang, WANG Dong, QING Chang-an, LIN Zhi-heng. Crack coalescence and brittle failure characteristics of open rock bridges[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(5): 908-915. DOI: 10.11779/CJGE202005013
Citation: CHEN Guo-qing, CHEN Yi, SUN Xiang, WANG Dong, QING Chang-an, LIN Zhi-heng. Crack coalescence and brittle failure characteristics of open rock bridges[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(5): 908-915. DOI: 10.11779/CJGE202005013
shu

Crack coalescence and brittle failure characteristics of open rock bridges

  • 1.

    State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China

  • 2.

    China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

More Information
  • Received Date: July 16, 2019
  • Available Online: December 07, 2022
    Graphical Abstract
    • Abstract
  • The coalescence of rock bridge of fractured rock mass with end cracking is the main cause of the sudden damage of the rock mass, and the brittle failure is obvious. The uniaxial compression tests are conducted on the open rock bridges with different lengths by using the acoustic emission tester and the rock mechanics rigidity tester. By use of the information recorded by high-speed camera, the crack coalescence laws and acoustic emission characteristics of open rock bridges are analyzed. The mechanism of crack initiation of open rock bridges is revealed by the theory of three-dimensional fracture mechanics. The results show that compared with the closed crack, the main crack of an open rock bridge starts from the tip of the crack at the lower part, and the main crack turns to the upper part expanding through the rock bridge and the top end. During the coalescence of the main crack, the rock bridge presents successive multi-stage failure. The secondary crack propagates along the inflection of the main crack and extends through the rock bridge and the lower end. The stress curve shows the "fluctuation rise" before the peak and "stagnation-sudden" after the peak, and the "multi-peak" phenomenon of the acoustic emission is obvious, with obvious stage and sudden features. Simultaneously, the three-dimensional theoretical analysis shows that the crack initiation direction is independent of the length of the rock bridge and extends along the direction of the maximum compressive stress. The obtained crack propagation characteristics of the open rock bridge may provide a theoretical basis for the sudden failure of the fractured rock mass.
    • FullText(HTML)
    • References (26)
  • [1]
    RAO Q H, SUN Z Q, WANG G Y, et al. Mode II fracture mechanism of direct shearing specimen with guiding grooves of rock[J]. Trana Nonferrous Met Soc China, 2001, 2(11): 613-616.
    [2]
    GOU S H, SUN Z Q. Closing law and stress intensity factor of elliptical crack under compressive loading[J]. Trana Nonferrous Met Soc China, 2002, 5(12): 966-969.
    [3]
    BOBET A, EINSTEIN H H. Fracture coalescence in rock-type materials under uniaxial and biaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences, 1998, 35(7): 863-888. doi: 10.1016/S0148-9062(98)00005-9
    [4]
    BOBET A. Fracture Coalescence in Rock Materials: Experimental Observations and Numerical Predictions[D]. Cambridge: Massachusetts Institute of Technology, 1997.
    [5]
    WONG L N Y, EINSTEIN H H. Crack coalescence in molded gypsum and Carrara marble: Part 1 Macroscopic observations and interpretation[J]. Rock Mechanics and Rock Engineering, 2009, 42(3): 475-511. doi: 10.1007/s00603-008-0002-4
    [6]
    WONG L N Y, EINSTEIN H H. Crack coalescence in molded gypsum and Carrara marble: Part 2 microscopic observations and interpretation[J]. Rock Mechanics and Rock Engineering, 2009, 42(3): 513-545. doi: 10.1007/s00603-008-0003-3
    [7]
    黄达, 黄润秋. 卸荷条件下裂隙岩体变形破坏及裂纹扩展演化的物理模型试验[J]. 岩石力学与工程学报, 2010, 29(3): 502-512. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201003011.htm

    HUANG Da, HUANG Run-qiu. Physical model test on deformation failure and crack propagation evolvement of fissured rocks under unloading[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(3): 502-512. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201003011.htm
    [8]
    黄达, 黄润秋, 张永兴. 三轴加卸载下花岗岩脆性破坏及应力跌落规律[J]. 土木建筑与环境工程, 2011, 33(2): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201102002.htm

    HUANG Da, HUANG Run-qiu, ZHANG Yong-xing. Brittle failure and stress drop of granite under triaxial loading and unloading[J]. Civil Engineering and Environmental Engineering, 2011, 33(2): 1-6. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201102002.htm
    [9]
    赵延林, 彭青阳, 万文, 等. 直剪作用下不共面断续节理岩桥破断试验与数值研究[J]. 土木建筑与环境工程, 2014, 36(1): 59-67. https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201401009.htm

    ZHAO Yan-lin, PENG Qing-yang, WAN Wen, et al. Breakage test and numerical study of non-coplanar intermittent jointed rock bridge under direct shear[J]. Civil Engineering and Environmental Engineering, 2014, 36(1): 59-67. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201401009.htm
    [10]
    赵延林, 万文, 王卫军, 等. 类岩石材料有序多裂纹体单轴压缩破断试验与翼形断裂数值模拟[J]. 岩土工程学报, 2013, 35(11): 2097-2109. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201311024.htm

    ZHAO Yan-lin, WAN Wen, WANG Wei-jun, et al. Study on uniaxial compression fracture test and wing fracture numerical simulation of ordered multi-cracked rock materials[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 2097-2109. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201311024.htm
    [11]
    杨圣奇, 戴永浩, 韩立军, 等. 断续预制裂隙脆性大理岩变形破坏特性单轴压缩试验研究[J]. 岩石力学与工程学报, 2009, 28(12): 2391-2404. doi: 10.3321/j.issn:1000-6915.2009.12.003

    YANG Sheng-qi, DAI Yong-hao, HAN Li-jun, et al. Uniaxial compression experimental research on deformation and failure properties of brittle marble specimen with pre-existing fissures[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(12): 2391-2404. (in Chinese) doi: 10.3321/j.issn:1000-6915.2009.12.003
    [12]
    杨圣奇, 黄彦华, 刘相如. 断续双裂隙岩石抗拉强度与裂纹扩展颗粒流分析[J]. 中国矿业大学学报, 2014, 43(2): 220-226. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201402007.htm

    YANG Sheng-qi, HUANG Yan-hua, LIU Xiang-ru. Analysis of tensile strength and crack propagation particle flow in intermittent double fracture rock[J]. Journal of China University of Mining & Technology, 2014, 43(2): 220-226. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201402007.htm
    [13]
    YANG S Q, HUANG Y H, TIAN W L, et al. Effect of high temperature on deformation failure behavior of granite specimen containing a single fissure under uniaxial compression[J]. Rock Mechanics and Rock Engineering, 2019, 52: 2087-2107. doi: 10.1007/s00603-018-1725-5
    [14]
    YANG S Q, YIN P F, ZHANG Y C, et al. Failure behavior and crack evolution mechanism of a non-persistent jointed rock mass containing a circular hole[J]. International Journal of Rock Mechanics and Mining Sciences, 2019, 114: 101-121. doi: 10.1016/j.ijrmms.2018.12.017
    [15]
    ZHOU X P, BI J, QIAN Q H. Numerical simulation of crack growth and coalescence in rock-like materials containing multiple pre-existing flaws[J]. Rock Mechanics and Rock Engineering, 2015, 48(3): 1097-1114. doi: 10.1007/s00603-014-0627-4
    [16]
    ZHOU X P, CHENG H, FENG Y F. An experimental study of crack coalescence behaviour in rock-like materials containing multiple flaws under uniaxial compression[J]. Rock Mechanics and Rock Engineering, 2014, 47(6): 1961-1986. doi: 10.1007/s00603-013-0511-7
    [17]
    纪洪广, 卢翔. 常规三轴压缩下花岗岩声发射特征及其主破裂前兆信息研究[J]. 岩石力学与工程学报, 2015, 34(4): 694-702. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201504005.htm

    JI Hong-guang, LU Xiang. Study on acoustic emission characteristics and precursor rupture information of granite under conventional triaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(4): 694-702. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201504005.htm
    [18]
    赵兴东, 唐春安, 李元辉, 等. 花岗岩破裂全过程的声发射特性研究[J]. 岩石力学与工程学报, 2006, 25(2): 3673-3678. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2006S2052.htm

    ZHAO Xing-dong, TANG Chun-an, LI Yuan-hui, et al. Study on AE activity characteristics under uniaxial compression loading[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(2): 3673-3678. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2006S2052.htm
    [19]
    CHEN G Q, ZHANG Y, HUANG R Q, et al. Failure mechanism of rock bridge based on acoustic emission technique[J]. Journal of Sensors, 2015: Article ID 964730.
    [20]
    宋义敏, 邢同振, 吕祥锋, 等. 不同加载速率Ⅰ型预制裂纹花岗岩断裂特征研究[J]. 岩土力学, 2018, 39(12): 81-88, 96. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201812010.htm

    SONG Yi-min, XING Tong-zhen, LU Xiang-feng, et al. Fracture characteristics of type I pre-cracked granite with different loading rates[J]. Rock and Soil Mechanics, 2018, 39(12): 81-88, 96. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201812010.htm
    [21]
    黎立云, 许凤光, 高峰, 等. 岩桥贯通机制的断裂力学分析[J]. 岩石力学与工程学报, 2005, 24(23): 4328-4334.

    LI Li-yun, XU Feng-guang, GAO Feng, et al. Fracture mechanics analysis of rock bridge failure[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(23): 4328-4334. (in Chinese)
    [22]
    张国凯, 李海波, 王明洋, 等. 单裂隙花岗岩破坏强度及裂纹扩展特征研究[J]. 岩石力学与工程学报, 2019, 38(增刊1): 2760-2771. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2019S1016.htm

    ZHANG Guo-kai, LI Hai-bo, WANG Ming-yang, et al. Study on failure strength and crack propagation characteristics of single-fractured granite[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38(S1): 2760-2771. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2019S1016.htm
    [23]
    郭奇峰, 武旭, 蔡美峰, 等. 预制裂隙花岗岩的强度特征与破坏模式试验[J]. 工程科学学报, 2019, 41(1): 43-52. https://www.cnki.com.cn/Article/CJFDTOTAL-BJKD201901004.htm

    GUO Qi-feng, WU Xu, CAI Mei-feng, et al. Strength characteristics and failure mode test of prefabricated fractured granite[J]. Journal of Engineering Science, 2019, 41(1): 43-52. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BJKD201901004.htm
    [24]
    陈国庆, 刘辉, 秦昌安, 等. 中部锁固岩桥三轴加卸荷力学特性及裂纹扩展研究[J]. 岩石力学与工程学报, 2017, 36(5): 1162-1173. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201705012.htm

    CHEN Guo-qing, LIU Hui, QIN Chan-gan, et al. Study on mechanical properties and crack propagation of triaxial loading and unloading of central locking rock bridge[J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36(5): 1162-1173. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201705012.htm
    [25]
    李世愚, 和泰名, 尹祥础, 等. 岩石断裂力学导论[M]. 合肥: 中国科学技术大学出版社, 2010.

    LI Shi-yu, HE Tai-ming, YIN Xiang-chu, et al. Introduction to Rock Fracture Mechanics[M]. Hefei: University of Science and Technology China Press, 2010. (in Chinese)
    [26]
    赵扬锋, 张超, 刘力强, 等. 预制裂纹花岗岩单轴压缩全过程声发射特征试验研究[J]. 煤炭科学技术, 2017, 45(7): 44-49, 138. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201707009.htm

    ZHAO Yang-feng, ZHANG Chao, LIU Li-qiang, et al. Experimental study on acoustic emission characteristics of pre-cracked granite during uniaxial compression[J]. Coal Science and Technology, 2017, 45(7): 44-49, 138. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201707009.htm
    • Related Articles

  • Related Articles

    [1]ZHAO Yun-ge, HUANG Lin-qi, LI Xi-bing. Identification of stages before and after damage strength and peak strength using acoustic emission tests[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(10): 1908-1916. DOI: 10.11779/CJGE202210017
    [2]LI Bo, YE Peng-jin, HUANG Lin, WANG Ding, ZHAO Cheng, ZOU Liang-chao. Deformation and acoustic emission characteristics of dry and saturated rock fractures[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(12): 2249-2257. DOI: 10.11779/CJGE202112011
    [3]XIE Qiang, TANG Jia-hui, LU Kun-peng, FU Xiang, BAN Yu-xin. Acoustic emission characteristics of cracked sandstones affected by different rotating angles of loading under splitting tests[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1862-1870. DOI: 10.11779/CJGE201810013
    [4]LIU Xiang-xin, ZHANG Yan-bo, LIANG Zhen-zhao, LIU Shan-jun. Recognition of frequency information in acoustic emission monitoring of rock fracture[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1096-1105. DOI: 10.11779/CJGE201706016
    [5]LI An-qiang, ZHANG Ru, AI Ting, GAO Ming-zhong, ZHANG Ze-tian, LIU Qian-ying, XIE Jing, JIA Zhe-qiang. Acoustic emission space-time evolution rules and failure precursors of granite under uniaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 306-311. DOI: 10.11779/CJGE2016S2050
    [6]ZHAI Song-tao, WU Gang, SUN Hong, PAN Jian-hua. Acoustic emission characteristics of thermal cracking of marble under uniaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 177-183.
    [7]ZHAO Xingdong, LIU Jianpo, LI Yuanhui, TIAN Jun, ZHU Wancheng. Experimental verification of rock locating technique with acoustic emission[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 1472-1476.
    [8]XIE Qiang, Carlos Dinis da Gama, YU Xianbin. Acoustic emission behaviors of aplite granite[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 745-749.
    [9]ZHANG Yuan, QU Fang, ZHAO Yangsheng. Acoustic emission phenomena of thermal cracking of sandstone[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(1): 73-75.
    [10]Wu Gang, Zhao Zhenyang. Acoustic emission character of rock materials failure during various stress states[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(2): 82-85.
    • Supplements (0)

  • Cited by

    Periodical cited type(14)

    1. 黄正均，武旭，郭国龙，马驰，张栋. 非贯通断续节理岩石剪切力学特性及破坏机理研究. 中国测试. 2025(02): 19-29+38 .
    2. 刘婷婷，曾乐乐，张超，李新平，杨婷，张腾胜. 节理分布形式对交叉节理岩体动态力学特性与破坏模式影响研究. 岩石力学与工程学报. 2024(01): 90-102 .
    3. 陈浩南，朱泽奇，庞鑫，万道春，夏禄清，张少军. 岩石卸荷的Mogi-Coulomb强度准则适用性研究. 力学与实践. 2024(03): 602-608 .
    4. 陈毅. 深埋硬岩隧道结构面对岩爆破坏特征的影响研究. 水电能源科学. 2024(07): 105-108+72 .
    5. 杜岩，张洪达，谢谟文，蒋宇静，李双全，刘敬楠. 大型危岩体崩塌灾害早期监测预警技术研究综述. 工程科学与技术. 2024(05): 10-23 .
    6. 孙杰龙，陈锐，李晓敏，邱明明，曹雪叶，王银. 单轴压缩下饱和裂隙红砂岩力学特性试验及PFC~(2D)模拟. 延安大学学报(自然科学版). 2024(04): 114-120 .
    7. 高美奔，李天斌，陈国庆，孟陆波，马春驰，张岩，阴红宇，钟雨奕. 基于岩石峰前起裂及峰后特征的脆性评价方法. 岩土工程学报. 2022(04): 762-768 . 本站查看
    8. 刘先林，范杰，朱觉文，李明智，朱星. 单轴压缩下岩桥脆性断裂的临界慢化特征. 水利水电技术(中英文). 2022(03): 166-175 .
    9. 王刚，宋磊博，刘夕奇，包春燕，吝曼卿，刘广建. 非贯通节理花岗岩剪切断裂力学特性及声发射特征研究. 岩土力学. 2022(06): 1533-1545 .
    10. 郑强强，徐颖，胡浩，钱佳威，宗琦，谢平. 单轴荷载作用下砂岩的破裂与速度结构层析成像. 岩土工程学报. 2021(06): 1069-1077 . 本站查看
    11. 陈永峰，张海东，赵广臣. 不同加载速率下端部节理岩桥变形破坏及裂隙扩展试验研究. 长江科学院院报. 2021(07): 66-72 .
    12. 张海东，陈永峰，赵广臣，张清华. 单轴压缩下预制端部节理岩桥变形破坏及裂隙扩展机制研究. 煤矿安全. 2021(09): 78-84 .
    13. 李博，叶鹏进，黄林，王丁，赵程，邹良超. 干燥与饱和岩石裂隙受压变形与声发射特性研究. 岩土工程学报. 2021(12): 2249-2257 . 本站查看
    14. 袁新华. 单轴压缩下中部锁固岩桥变形破坏模式及演化机制研究. 中国安全生产科学技术. 2020(09): 116-121 .

    Other cited types(9)

Catalog

    Get Citation
    PDF
    XML
    Article views (266) PDF downloads (142) Cited by(23)
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return