本文通过对旧桥进行拆除的必要性和国内外旧桥拆除施工工艺研究现状的阐述,介绍了几种常用的旧桥拆除方法,对旧桥拆除的各种方法的优缺点进行论述,并对其概念、工作原理、优缺点、应用条件及局限性加以分析和说明。本文还结合福建绕城高速青口互通旧桥拆除和新建的过程,介绍了需拆除的旧桥现状、桥位周围环境、旧桥的拆除顺序、拆除方法以及拆除注意事项。 Based on the necessity of demolishing the old bridge and the research status of the construction technology of old bridge demolition at home and abroad, this paper introduces several commonly used methods of demolition of old bridges, discusses the advantages and disadvantages of various methods of demolition of old bridges, Its concept, working principle, advantages and disadvantages, application conditions and limitations to be analyzed and explained. This paper also introduces the process of demolition and construction of the old bridge in the city of Fujian around the expressway, introduces the current status of the old bridge to be demolished, the surrounding environment of the bridge, the order of dismantling the old bridge, the dismantling methods and the precautions for demolition.