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中文摘要：
针对双块式无碴轨道结构特点，提出一种新的双块式无碴轨道空间振动分析模型，进一步建立高速列车一双块式无碴轨道系统空间振动分析方法。然后，基于列车脱轨能量随机分析理论，对高速列车-双块式无碴轨道系统横向振动稳定性及高速列车是否脱轨进行了评判。计算结果表明：高速列车以300km／h速度在双块式无碴轨道上运行时，车轨系统横向振动是稳定的，列车不会脱轨，且具有n=2．143的抗脱轨安全系数。
英文摘要：
According to the structural characteristic of twin - block ballastless track, a new model of spatial vibration of the track was put forward. The analysis method of spatial vibration of high - speed train and twin - block ballastless track system was further established. The transverse movement stability of the high - speed train and twin - block ballastless track system and whether the high - speed train derailed or not were evaluated on the basis of the random energy analysis theory for train derailment. The results show that the transverse movement of the train -track system is stable, the high -speed train will not derail and the anti -derailment safety coefficient n is 2. 143 when the high - speed train runs on the double - block ballastless track at 300 km/h.
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