单轴压缩下基于全局应变场分析的岩石裂纹扩展及其损伤演化特性研究

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摘要采用自主开发的图像分析软件结合数字图像相关技术对含预制单裂纹的类岩石材料在单轴压缩下的变形破坏特性进行试验研究。基于试件全局应变场角度从细观层次量化分析、总结裂纹起裂、扩展的规律及岩石变形损伤演化特征。并采用断裂分析软件FRANC2D/L对相似模型进行数值模拟，分析在加载全程不同阶段的裂纹扩展路径及其应力场分布特征。结合试验与数值研究结果，细致地探讨裂隙岩石的细观力学机制与宏观力学响应之间的内在联系，该研究有助于提升人们对节理岩体工程灾变机制的认识。

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关键词 ：岩石力学, 类岩石材料, 裂纹扩展, 全局应变场, 损伤演化, 数字图像, 数值模拟

Abstract：Based on the self-developed digital image analysis software and the digital image correlation method，the deformation and failure characteristics of rock-like materials with pre-existing single flaw is experimentally studied under uniaxial compression. The law of crack initiation and propagation and the evolution properties of rock damage are analyzed and summed up quantitatively on meso-level from the perspective of the global strain field on the surface of specimen. Besides，FRANC2D/L，a fructure analysis software，is applied to a numerical model corresponding to the experimental specimen to simulate the path of crack growth and the corresponding distribution of stress field at different stages in the whole process of loading. Combining the results of experiment and simulation，the inner link between microscopic mechanical mechanism and macroscopic mechanical response of flawed rock is discussed，which provides a deeper understanding to the disaster mechanism of jointed rock mass engineering.

Key words： rock mechanics rock-like material crack propagation global strain field damage evolution digital image simulation

引用本文:

赵程1，2，田加深1，松田浩3，赵春风1，2，鲍冲1. 单轴压缩下基于全局应变场分析的岩石裂纹扩展及其损伤演化特性研究[J]. 岩石力学与工程学报, 2015, 34(04): 763-769.
ZHAO Cheng1，2，TIAN Jiashen1，MATSUDA Hiroshi3，ZHAO Chunfeng1，2，BAO Chong1. STUDY ON THE CRACK PROPAGATION AND DAMAGE EVOLUTION CHARACTERISTCIS OF ROCK BASED ON THE GLOBAL STRAIN FIELD UNDER UNIAXIAL COMPRESSION. , 2015, 34(04): 763-769.

链接本文:

http://www.rockmech.org/CN/Y2015/V34/I04/763

[1]	刘晓丽，王思敬，王恩志，等. 单轴压缩岩石中缺陷的演化规律及岩石强度[J]. 岩石力学与工程学报，2008，27(6)：1 195-1 201.(LIU Xiaoli，WANG Sijing，WANG Enzhi，et al. Evolutionary rules of flaws in rock subjected to uniaxial compression and rock strength[J]. Chinese Journal of Rock Mechanics Engineering，2008，27(6)：1 195-1 201.(in Chinese)) " target="_blank">
[14]	YAMAGUCHI I. A Laser-speckle strain gage[j]. Journal Of Physis E：Scientific Instruments，1981，14：1 270-1 273. " target="_blank">
[2]	JAGER J C，COOK N G W. 岩石力学基础[M]. 中国科学院工程力学研究所，译. 北京：科学出版社，1983.(JAGER J C，COOK N G W. Fundamentals of rock mechanics[M]. Translated by Institute of Engineering Mechanics，Chinese Academy of Science. Beijing：Science Press，1983.(in Chinese)) " target="_blank">
[4]	DEY TN，WANG CY. Some mechanisms of microcrack growth and interaction in compressive rock failure. Int J Rock Mech Min Sci Geomech Abstr，1981，18：199-209. " target="_blank">
[7]	朱珍德，张勇，陈卫忠. 应用数字图像分析方法评价红砂岩渐进损伤破坏特性[J]. 岩土力学，2005，26(2)：203-208.(ZHU Zhende，ZHANG Yong，CHENG Weizhong. Analysis of gradual damage breakage properties of red sandstone with digital image technique[J]. Rock and Soil Mechanics，2005，26(2)：203-208.(in Chinese)) " target="_blank">
[11]	宋义敏，马少鹏，杨小彬，等. 岩石变形破坏的数字散斑相关方法研究[J]. 岩石力学与工程学报，2011，30(1)：170-175.(SONG Yimin，MA Shaopeng，YANG Xiaobin，et al. Experimental investigation on failure of rock by digital speckle correlation methods[J]. Chinese Journal of Rock Mechanics Engineering，2011，30(1)：170-175.(in Chinese))
[13]	ZHAO C，MATSUDA H，MORITA C，et al. Study on failure characteristic of rock-like materials with an open-hole under uniaxial compression[J]. Strain，2011，47：405-413. " target="_blank">
[15]	RANSON W F，PETERS W H. Digital image techniques in experimental stress analysis[J]. Optical Engineering，1982，21(3)：427-431. " target="_blank">
[16]	Cornell University. FRANC2D/L User’s Guide [EB/OL]. [2012-03—11]. http：//www. efg. comel1. edu，2003. " target="_blank">
[3]	潘一山. 冲击地压发生和破坏过程研究[博士学位论文][D]. 北京：清华大学，1999.(PAN Yinshan. Study on rockburst initiation and failure propagation[Ph. D. Thesis][D]. Beijing：Tsinghua University，1999.(in Chinese)) " target="_blank">
[5]	BOBET A. Modelling of crack initiation，propagation and coalescence in uniaxial compression. Rock mech Rock Eng，2000，33(2)：119-39.
[8]	潘一山，杨小彬，马少鹏，等. 岩土材料变形局部化的实验研究[J]. 煤炭学报，2002，27(3)：281-284.(PAN Yishan，YANG Xiaobin，MA Shaopeng，et al. Experimental study on the deformation localization of rock-soil material[J]. Journal of China Coal Society，2002，27(3)：281-284.(in Chinese)) " target="_blank">
[9]	马少鹏. 数字散斑相关方法在岩石破坏测量中的发展与应用[博士学位论文][D]. 北京：清华大学，2003.(MA Shaopeng. Development and application of digital speckle correlation method of failure measurement for rock materials[Ph. D. Thesis][D]. Beijing：Tsinghua University，2003.(in Chinese)) " target="_blank">
[12]	王彦琪，冯增朝，郭红强，等. 基于图像检索技术的岩石单轴压缩破坏过程CT描述[J]. 岩土力学，2013，24(9)：2 534-2 540.(WANG Yanqi，FENG Zengchao，GUO Hongqiang，et al. CT description of rock failure process under uniaxial compression loading based on image retrieval technology[J]. Rock and Soil Mechanics，2013，24(9)：2 534-2 540.(in Chinese)) " target="_blank">
[6]	马少鹏，赵永红，金观昌，等. 光测方法在岩石力学实验观测中的应用评述[J]. 岩石力学与工程学报，2005，24(10)：1 794-1 799. (MA Shaopeng，ZHAO Yonghong，JIN Guangchang，et al. Review on application of optical measurement methods to experimental inspection of rock mechanics[J]. Chinese Journal of Rock Mechanics Engineering，2005，24(10)：1 794-1 799.(in Chinese)) " target="_blank">
[10]	MA S P，XU X H，ZHAO Y H，et al. Geo-DSCM system and its application to deformation measurement of rock mechanics[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(3)：411-412.