重载铁路路基桩板结构计算分析研究

桩板结构具有构造简单、施工难度小等特点,近年来在高速铁路无砟轨道路基工程中得到了大量应用。但由于桩板结构受力条件复杂,国内外尚未形成系统的理论计算体系,其设计方法有待进一步研究,为此,以某重载铁路的桩板结构设计为实例,采用有限元数值分析的方法,模拟浅埋式桩板结构所受的静力恒载、列车活载,对桩板结构的变形、受力情况进行分析。可为今后类似工程设计提供参考。

Calculation and Analysis Research on Pile Plate Structure for Subgrade of Heavy Haul Railway

By virtue of simple structure, less construction difficulty and other characteristics, the pile plate structure has been widely applied to subgrade engineering of ballastless track of high speed railway in recent years. However, as the pile plate structure is under complicated stress condition, there isn’t systematic theoretic computation system formed at home and abroad yet, the design method shall be further studied. Therefore, taking the design of pile plate structure for a heavy haul railway for example, the numerical analysis of finite element is adopted to simulate the static load and live load applied to shallow buried pile plate structure, and analyze the deformation and load-bearing capability of pile plate structure, and provides reference for similar engineering design in the future.