【摘要】 在对比和分析欧美铁路的轨道谱拟合公式及我国专家学者研究成果的基础上,结合对我国主要干线铁路大量轨道不平顺检测数据的分析和计算,研究并给出能较好表征我国干线铁路轨道不平顺特征的通用轨道谱拟合公式以及通用轨道谱的表达方式。由于我国干线铁路的建设标准差异比较大,采用平均轨道谱表达方式不能很好地表征我国干线铁路的轨道质量状况,而采用分级形式的轨道谱则能够更好地表征我国众多干线铁路的轨道不平顺特征;根据我国干线铁路的行车速度,建议将我国干线铁路轨道谱划分为3个等级,即200km.h-1等级提速线路轨道谱、160 km.h-1等级提速线路轨道谱和120 km.h-1及以下普通线路轨道谱。更多还原

【Abstract】 In this paper,a fitting formula for general track spectrum that can characterize the track irregularity of Chinese main railway lines was presented based on the contrastive analysis on domestic and foreign track spectrum fitting formulas as well as the statistical analysis on related data.Study on the form of general track spectrum of Chinese main railway lines shows that the average track spectrum cannot characterize well the quality of Chinese main railway lines due to the great difference among domestic constructive standards,while the graded track spectrum can.Consequently,a scheme to grade track spectrum of Chinese main railway lines according to the running speed of railway was proposed,in which the track spectrum was classified into three levels: the track spectrum of the speedup railway lines for the speed of 200 km·h-1 and of 160 km·h1, and the track spectrum of the general line for speed less than or equal to 120 km·h-1.更多还原