[VI-893] EFFECTS OF FREEZE-THAW OF ROADBED AND SUBGRADE ON TRAIN VIBRATION AT HIGH-SPEED RAILWAY IN COLD REGIONS
キーワード：THM analysis、ARX model、Riding comfort evaluation
The frost heaving of frost-susceptible subgrade is a major problem at the railway operations in cold regions. It causes large track irregularity so as to increase train vibration and affects the ride comfort and operational safety of railway transportation. This study focuses on estimating train vibration accelerations due to the deformation of railway structure subject to frost heave and thaw settlement, and proposing some constructive countermeasures for railway engineering.
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