【摘要】 基于列车脱轨能量随机分析理论,指出预防直线提速货物列车脱轨的根本措施在于一方面要提高列车轨道(或列车桥梁)系统脱轨抗力作功σc,另一方面要降低此系统的输入能量σp,并对此进行了理论分析.同时还提出了预防脱轨的轨道参数改善方法及改善轨道参数后此系统抗脱轨安全系数N的计算方法,以确保直线段提速货物列车的正常运行,不会脱轨.最后还提出了现场行车试验验证方法,以鉴别上述计算理论的可行性.更多还原

【Abstract】 According to the theory of random energy analysis for train derailment,the fundamental measures to prevent derailment of accelerated freight train on tangent section are,on the one hand,to increase the work σc done by resistance to derailment,and on the other hand,to decrease the energy σp input to the traintrack(or trainbridge)system.A theoretical analysis of the fundamental measures to prevent deailment of accelerated freight train on tangent section is also made in this paper.The methods of improving track parameters and calculating safety coefficient N,which can ensure proper running of accelereated speed freight train on tangent section,are presented.The field test method applied to identify the feasibility of the calculation theory is put forward in the last part of the paper.更多还原