浅谈线路中修纵断面的设计

Talking about the Design of the Lengthwise Section of the Medium Maintenance Line

介绍了线路大中修纵断面设计的技术标准和设计原则以及线路纵断面设计中最大坡度的折减方法,详细比较了抛物线型竖曲线与圆曲线型竖曲线的行车条件,阐述了抛物线型竖曲线的优越性和使用最大坡度时坡度折减的必要性。

This paper introduces the technical standards and design principles of the design of the lengthwise section of the medium maintenance line, expounds the reducing method for the maximum slope in the design of line's lengthwise section, compares the traffic conditions of the parabolic vertical curve and the circular vertical curve, and describes the superiorities of the parabolic vertical curve and the necessity of the slope reduction in the case of using the maximum slope.