波纹钢板拱桥结构性回填影响及措施浅析

Influences and Measures of Structural Backfillof Corrugated Steel Plate Arch Bridge

波纹钢板拱埋置式结构作为一种柔性结构,必须依赖拱周围结构性回填土的支撑或土与结构之间相互作用来发挥结构的承载力并维持拱截面形状。因此,了解和掌握结构性回填影响因素及正确选用结构性回填材料与回填控制技术措施尤为重要。随着我省平互大公路、扎碾公路等工程中的波纹钢板拱桥实施,分析总结出了结构性回填的影响基本因素与工程实践控制,为以后同类工程项目提供经验借鉴。

As a flexible structure,corrugated steel arch embedded structure must rely on the support of structural backfill around the arch or the interaction between soil and structure to exert the bearing capacity of the structure and maintain the shape of the arch section.Therefore,it is particularly important to understand and master the influencing factors of structural backfilling and correct selection of structural backfilling materials and backfilling control measures.With the implementation of corrugated steel plate arch bridges in Pinghuida Highway and Zha-Rong Highway projects in our province,the basic factors affecting structural backfilling and engineering practice control are analyzed and summarized,which can provide experience for similar projects in the future.