近几年来,随着市政工程建设的发展,北京市对城近郊区的一些河道如北护城河、万泉河、小月河等相继进行了整治。这对改善市容、美化首都、改善人民生活环境以及防洪排涝等,收到了很大的社会效益和经济效益,得到了广大人民群众的赞誉。在河道整治中,为节省城市建设用地,建筑结构一般多采用直栏墙式混凝土挡墙。使用以来,由于多种因素的影响,个别地段出现了挡墙倒塌,影响了市政设施效益的正 In recent years, along with the development of municipal engineering construction, Beijing has carried out remediation on some rivers in the suburbs of the city such as the Northern Moat, Wanquan River and Xiaoyue River. This has received great social and economic benefits for improving the cityscape, beautifying the capital, improving people’s living environment and preventing floods and drainage. It has won praises from the broad masses of the people. In the river improvement, in order to save land for urban construction, the general use of straight wall construction of the concrete wall retaining wall. Since its use, due to various factors, the collapse of retaining walls occurred in some areas and the positive impact on the efficiency of municipal facilities