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采用自行研制的加载装置，配装在光学体视显微镜下，观测了珊瑚砂土在加载过程中微结构的变化及颗粒滑移的全过程。通过图像处理分析仪对其孔隙变化进行了几何分维数的统计计算，得到砂土在加载过程中颗粒滑移与孔隙分维的变化特征。
Using a self-developed loading device equipped with an optical stereomicroscope, the changes in the microstructure of the coral sand during loading and the whole process of particle slip were observed. Through the statistical calculation of the fractal dimension of its pore change by the image processing analyzer, the variation characteristics of the particle slip and the fractal dimension of the sand during loading are obtained.