季节冻土区高速铁路路基冻胀特性研究

Research on Frost Heave Characteristics of High Speed Railway Subgrade in Seasonal Frozen Soil Area

总结了季节冻土区铁路路基的冻胀特点,分析了影响冻胀的主要因素,如土质、土中的含水量和温度,基于前人的研究成果,总结了路基防冻胀的措施,包括设置保温层、改良填料特性和控制水分条件。上述研究成果为避免季节性冻土区高速铁路路基冻胀病害的发生提供了重要的指导作用。

This paper summarizes the frost heaving characteristics of railway subgrade in seasonal frozen soil area,analyzes the main factors affecting frost heaving,such as soil,water content and temperature in soil.Based on previous research results,it summarizes the anti frost heave measures of subgrade,including setting insulation layer,improving filler characteristics and controlling water content conditions.The above research results provide important guidance for avoiding frost heaving of high-speed railway subgrade in seasonal frozen soil area.