被动桩受力分析因为需要考虑桩-土相互作用,一直没有广为接受的理论和设计方法。但随着城市的不断发展,部分已经建成的桥梁桩基因为周边地块重新开发,受到了不利影响,需要重新加固。该文结合厦门新阳大桥桩基加固项目,采用Plaxis软件,分析不同加固方案对被动桩基受力的影响。 Passive pile stress analysis There is no widely accepted theory and design method because of the need to consider the pile-soil interaction. However, with the continuous development of cities, some of the already completed bridge piles have been adversely affected by the redevelopment of surrounding plots and need to be re-strengthened. In this paper, combined with the pile foundation reinforcement project of Xiamen Xinyang Bridge, Plaxis software is used to analyze the influence of different reinforcement schemes on the force of passive pile foundation.