滨海平原地区多为粘性土,中小型水利工程修建得较多,挡土墙的工程量一般占工程的30～40%,设计得省或费,对工程造价的关系很大。笔者多年来从事挡土墙设计,所取断面尺寸都比理论上计算的断面小1～1.5倍,尽管断面设计得很小,也没考虑地震力影响,但在1976年唐山地震后,经过回 Most coastal plains are cohesive soils, and there are many small and medium-sized water conservancy projects. Retaining wall projects generally account for 30 to 40% of the project. The design is cost-saving and has a large relationship with the construction cost. The author has been engaged in the design of retaining walls for many years. The section size taken is 1 to 1.5 times smaller than the theoretically calculated section. Although the section design is very small and the impact of seismic forces is not considered, after the Tangshan earthquake in 1976,