膨胀土是影响道路及其他构造物建设的一种特殊地基土质,在实际工程中,其不良影响是较大的,文章着重从影响膨胀土物理、力学性质变化的内在因素和外在因素上考虑,从而通过改变土的力学性质达到处理的目的。 Expansive soil is a kind of special foundation soil that affects the construction of roads and other structures. In practical engineering, its adverse effects are larger. The article focuses on the internal factors and external factors that affect the physical and mechanical properties of expansive soil , So that by changing the mechanical properties of soil to achieve the purpose of treatment.