Dynamic experimental study on rock meso-cracks growth by digital image processing technique |
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| Authors: | ZHU Zhen-de NI Xiao-hui WANG Wei LI Shuang-bei ZHAO Jie WU Yi-quan |
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| Affiliation: | 1. Geotechnical Research Institute;Hohai University;Nanjing 210098;China;2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering;3. College of Civil Engineering and Architechure;Guangxi University;Nanning 530004;China |
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| Abstract: | A new meso-mechanical testing scheme based on SEM was developed to carry out the experiment of microfracturing process of rocks. The microfracturing process of the pre-crack marble sample on surrounding rock in the immerged Long-big tunnel in Jinping Cascade II Hydropower Station under uniaxial compression was recorded by using the testing scheme. According to the stereology theory, the propagation and coalescent of cracks at meso-scale were quantitatively investigated with digital technology. Therefore, th... |
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| Keywords: | marble rock failure process digital image processing growth of meso-crack dynamic observation experimental study |
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