挡土墙是防止土坡倒坍的构筑物。目前挡土墙设计皆采用古老的库伦定律,沿用《建筑结构设计手册》中有关资料,设计出的挡土墙断面肥大(图1),基础深,材料消耗大,施工周期长,与古代挡土墙(图2)相比较,断面大了二倍左右。所以,应进一步改进挡土墙的设计,使之更合乎实际,设计出安全、经济的断面。 Retaining walls are structures that prevent the collapse of earth slopes. Retaining wall designs are based on ancient Coulomb’s law and follow the relevant materials in the “Architecture Design Manual” to design the retaining wall section hypertrophy (Fig. 1). The foundation is deep, the materials are consumed, the construction period is long, and the construction period is long. Compared with the earth wall (Figure 2), the section is about twice as big. Therefore, the design of the retaining wall should be further improved to make it more practical and to design a safe and economical section.