本文提出了用均匀收缩曲线图简漫而直观地判断膨胀土是否具有胀缩各向异性。假定膨胀土的收缩是各向均匀的,则根据实测的线缩率可以计算出理论体缩值,得到的函数图象是一条通过座标原点的立方抛物线,即均匀收缩曲线。利用膨胀土的实测线缩率和体缩,在均匀收缩曲线图上可以确定其各向收缩特性。文中讨论了均匀收缩曲线的意义。方程式的推导及其应用。 This paper presents a simple and intuitive way to judge whether expansive soils have swelling anisotropy with uniform shrinkage curves. Assuming that the shrinkage of the expansive soil is uniform, the shrinkage of the theoretical volume can be calculated based on the measured linear shrinkage. The function image obtained is a cubic parabola passing through the origin of coordinates, ie, the uniform shrinkage curve. Using the measured shrinkage and shrinkage of the expansive soil, the isotropic shrinkage characteristics can be determined on the uniform shrinkage curve. The significance of the uniform shrinkage curve is discussed in this paper. Derivation of equations and their applications.