粘性土击实过程中微观结构的定量评价

本文应用Ｖｉｄｅｏｌａｂ图像分析系统，对粘性土在击实过程中形成的５种微观结构类型进行了定量评价，这些定量指标包括孔隙比、平均孔径、平均形状系数、定向角分布、主定向角、各向异性率等，并引进了一个反映微观结构单元体排列有序性的定量指标---概率熵。最后根据定量分析结果，对粘性土击实特性的内在机理进行了分析

Quantitative Assessment of Changes of Microstructure for Clayey Soil in the Process of Compaction

Using Videolab Image Processing System, the microstructural changes of clayey soil in the process of compaction are quantitatively assessed These quantitative indexes include void ratio, average size, average form factor, the distribution of orientation angles, main orientation angle and anistropy etc A new quantitative index probability entropy is proposed for assessing the ordering extent of microstructural units Finally, the mechanisms of compacting properties of clayey soil are analysed according to the quantitative results