北京市多年来在道桥工程中一直采用重力式挡土墙结构,重力式挡土墙圬工量大、造价高,尤其是块石挡土墙,工人劳动强度大、费工又多,已同当前实现市政建设的现代化越来越不相称。为了逐步改变这种落后状况,于1979年初我们从四川省渡口市第十九冶金建筑研究所学习了折板挡土墙的设计 Over the years, Beijing has been using gravity retaining wall structure in the bridge project. The gravity retaining wall has a large amount of construction work and high cost, especially for rock and stone retaining walls. The workers are labor-intensive and they have a lot of work, It is more and more disproportionate with the current modernization of municipal construction. In order to gradually change this backwardness, in early 1979, we studied the design of the folded retaining wall from the 19th Institute of Metallurgical Construction, Dukou, Sichuan Province