季节性冻土路基的冻胀机理及其防治措施

Frost Heave Mechanisms and Mitigations of Railway Subgrade in Seasonal Frozen Soils

在高寒季节性冻土地区修建高铁时,往往面临路基冻胀问题,现针对我国在季节性冻土地区高铁设计中存在的冻胀问题,梳理了季节性冻土路基冻胀机理,分析了影响路基冻胀的主要因素,在此基础上,对季节性冻土路基的冻胀防治措施进行了探讨。

The frost heave problems of the subgrade are among the most encountered geo-hazards in the construction of highspeed-rail in alpine seasonal frozen soil area. This paper presents the frost heave mechanism of high-speed-rail subgrade in the seasonal frozen soils. The problems that exist in the current frost heave design practices are also discussed. Factors that affect the magnitude of the frost heave as well as their mitigation measures are also presented.