挡土墙是防止土体坍塌的土工构筑物,在建筑工程、水利工程、铁路和公路工程的土坡支护中得到广泛地应用。挡土墙一旦破坏,不仅严重影响本身的正常使用和功能的发挥,还会引起边坡的失稳。挡土结构的震害表明,当挡土墙的破坏时,往往会造成道路受损,桥梁破坏,甚至阻断交通。因而挡土墙在地震作用下的动土压力的研究对挡土墙的抗震设计具有至关重要的作用。 Retaining wall is a geotechnical structure to prevent the collapse of soil, which is widely used in the construction of earthwork, water conservancy projects, railway and road engineering. Once the retaining wall is damaged, not only seriously affect their normal use and function of play, but also cause the slope instability. Seismic damage to the retaining structure shows that when the retaining wall is destroyed, the road is often damaged, the bridge is damaged and even traffic is blocked. Therefore, the study of earth-moving pressure of retaining wall under the action of earthquake plays an important role in the seismic design of retaining wall.