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中文摘要：
对选自四川镜屏二级水电站的大理岩进行带有加载装置的扫描电镜（SEM）细观损伤破坏过程的动态试验.获取试验过程中裂纹生长发育的相关图片,并进行图像处理、分析、可视化和算法开发的研究,获取岩石损伤破坏的过程中的重要参数（长度、面积、角度等）,进行损伤破坏特性的量化分析.研究结果表明,加载过程中,长度、方位角、面积等细观结构参数服从一定的分布规律和演化规律;加载过程中分叉裂纹极其发育,加载后期裂纹扩展迅速,最终形成剪切破坏面.
英文摘要：
Aiming at the marble selected from Sichuan Jinping Ⅱ hydropower station,the dynamic tests were conducted for a meso-damage process carrying scanning electron microscopy with a loading device of it,in which the whole process observation experiment on rock surface under uniaxial compression loading was carried out.The growth process of acquiring images of cracks in the test were used to study the image processing,analysis,visualization and algorithm development,obtaining the important parameters in the process of damage and failure of rocks （length,area,angle and so on）,and damage quantification failure analysis.The results show that：in the process of loading,length and angle,the area of meso-structure parameters obey a certain distribution and evolution; the loading process branch crack grows extremely,and post load crack grows rapidly,eventually forming shear failure surface.
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