北方高速铁路路基防冻胀及补强措施

Northern High-speed Railway Subgrade Anti-frost Heave and Reinforcement Measures

北方高速铁路路基冻胀普遍存在,直接影响铁路运行速度及安全。通过分析路基产生冻胀原因,提出了相应的方法,对已发生冻胀的路基提出了冻胀补强的方法,将路基冻胀控制在设计允许范围之内,可为今后类似工程提供经验。

Subgrade frost heave is widely existed in the northern high-speed railway,which directly influences running speed and safety of railway. This paper puts forward the corresponding method by analyzing the frost heave reasons of subgrade. The method of reinforcement for subgrade frost heave on which frost heave has been occurred is proposed,and the subgrade frost heave should be controlled in the allowable range of design,which can provide experiences for similar projects in the future.