摘要
依托中国铁道科学研究院环行铁道试验基地建设重载试验线,对我国重载铁路的科技创新具有重大意义,但现行的《铁路线路设计规范》并不能完全适应重载试验线的设计需求。结合我国重载铁路运营实践情况和建设需求,在参考相关研究的基础上,对重载试验线平纵断面设计的关键参数进行研究分析,提出最小曲线半径、圆曲线和夹直线最小长度、限制坡度、坡度代数差、坡段长度等参数的合理取值与原则,为重载试验线平纵断面设计提供参考。
Construction of a heavy haul test line at the Loop Test Base of China Academy of Railway Sciences is of great significance to the scientific and technological innovation of China＇s heavy haul railway. The existing Railway Track Design Specifications cannot fully meet the design requirements of the heavy haul test line. This paper analyses key parameters of of horizontal and longitudinal profiles for the test line based on the current situation of operation of and construction requirements on heavy haul railways in China and the relevant studies. It presents reasonable values and principles of setting parameters such as the minimum radius of curve, the minimum length of circular curve and intermediate straight line, the ruling limiting gradient, the algebraic difference between adjacent gradients, the length of gradient, etc. for the reference during design of horizontal and longitudinal profiles of the heavy haul test line.
出处
《中国铁路》
2017年第3期82-87,共6页
China Railway
基金
中国铁道科学研究院科技研究开发计划项目(2015YJ136)
关键词
重载试验线
平纵断面
设计参数
曲线半径
限制坡度
坡度代数差
heavy haul test line
horizontal and longitudinal profiles
design parameters
radius of curve
limiting gradient
algebraic difference between adjacent gradients
