Abstract：Research purposes: The stability and enduring of slab track is controlled by the track foundation, and the asymmetrical settlement of embankment is the kernel factor, so it is very necessary to analyze the dynamic performance of wheel/rail system.
Research methods: Based on the vehicle-track coupling dynamics theory, the vertical dynamics model of vehicle and track on the embankment had been set up, and the computer program is worked.
Research results: The dynamics responses is obtained regards on different working condition, and the asymmetrical settlement influence law on the wheel/rail dynamic system is researched too.
Research conclusions: Analysis results indicate that the wheel/rail system dynamic interaction increased sharply when the vehicle passing over asymmetrical settlement, the dynamic stress of CA layer and embankment increased also. The a- symmetrical settlement suggestion value should be limited to under 20mm-30 mm/20 m with speed of 250 km/h, then the asymmetrical settlement suggestion value should be limited to under 20 mm/20 m with speed of 300 km/h.
韩义涛,姚力. 基础沉降对土路基上板式轨道动力性能影响分析[J]. 铁道工程学报, 2007, 24(10): 28-31.
HAN Yi-tao,YAO-Li. Analysis of the Dynamic Performance for Slab Track Settlement on Embankment. 铁道工程学报, 2007, 24(10): 28-31.
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2007, Vol. 24 
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