软基拱桥桥台变位的精确计算是很困难的,目前还没有一个比较完善的方法。本文提出一个近似估算方法,以引用桥台基床抗力为主进行桥台变位计算,同时考虑了其它影响因素。文中对桥台齿坎受力状态也进行了分析计算。并从利用桥台变位的有利因素出发初步探讨了拱桥设计改进的意见。文中附有三个不同类型桥台算例。 Accurate calculation of abutment deformation of soft ground arch bridge is very difficult, there is not a perfect method. In this paper, an approximate estimation method is proposed to calculate the abutment displacement with reference to the abutment bed resistance, taking into account other influencing factors. The paper also analyzes and calculates the stress state of abutment tooth ridge. Based on the favorable factors of the displacement of the abutment, the opinions on the improvement of the arch bridge design are discussed. There are three different types of abutment examples attached to this article.