作者使用扫描电镜研究了膨胀土的显微结构,目的为了探索显微结构和胀缩性的关系。研究表明,膨胀土中最常见的是面—面叠聚体,这些面—面叠聚体是产生胀缩的基本组织单元,这些面—面叠聚体形成的粘粒基质,是膨胀土的主要结构特征。因此,在探索膨胀土的胀缩机理时,结构特征是不容忽视的。 The authors used scanning electron microscopy to study the microstructure of expansive soil in order to explore the relationship between microstructure and swelling and shrinkage. Studies have shown that the most common type of expansive soil is a face-to-face stack. These face-face stacks are the basic building blocks that produce expansion and contraction. The cohesive matrix formed by these face-face stacks is an expansive soil. The main structural features. Therefore, when exploring the expansion and contraction mechanism of expansive soil, the structural characteristics cannot be ignored.