基于国际工程案例分析的公路桥无导梁顶推工法应用特点研究

Research on Application Characteristics of Incremental Launching Method Without Launching Nose for Highway Bridge Based on Analysis of International Construction Case

鉴于噪声小、造价低、作业面小、适用高桥墩等优点,在国际工程领域,近年来无导梁顶推法作为一种相对较为新颖和现代化的工法也得到更多的实践,然而相关研究却非常有限。本文基于对传统混凝土桥顶推工法的总结,结合国外工程实例分析了无导梁顶推法的关键工序和应用实践方法,在此基础上进一步分析了此类工法的关键技术,为同类项目提供参考。

Whereas the advantages on lower noise,less costs,smaller working surface,applicable for high bridge pier,etc.,as a relatively new and modern construction method,incremental launching method without launching nose is applied more and more in the construction practice.However,the relevant research is quite limited.Based on the summarize on the incremental launching method for traditional concrete bridge,combining the practical case of overseas construction project,the critical construction process and application method of incremental launching method without launching nose were analyzed in this paper.On this basis,the key technology of such method is further researched,as a reference for the similar construction project.