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This document presents a doctoral thesis on the frost heave mechanisms and mathematical modeling of unsaturated coarse-grained soil subgrades in high-speed railways located in cold regions. The research highlights the significant impact of vapor transfer on frost heave in coarse-grained soils, challenging existing theories that primarily focus on fine-grained soils. The findings include the development of a new frost heave model and the application of a numerical simulation program, PCHeave, which successfu

Author

lbll8135

Language

EN