expansive soil foundation 基本例句 膨胀土地基 Based on the characteristics of expansive soil, some problems of the Construction foundation design and some methods of the ground treatment are discussed in this article.摘要根据膨胀土的特性，探讨了膨胀土地区构造物基础设计应注意的问题及膨胀土地基处理的方法。