浅论既有山区铁路提速

ELEMENTARY DISCUSSION OF RAISING SPEED ON EXISTING MOUNTAIN RAILWAYS

根据既有山区铁路的特点，分析了既有山区铁路提速的主要影响因素，考虑到超高参数的选择，满足舒适度的要求，以及满足内外轨均匀磨损等因素，提出了如何确定其提速目标值的方法，并提出了相应的技术对策和工程措施（其中包括圆曲线与夹直线的最小长度、缓和曲线长度等的确定）、行车组织措施及采用摆式车体的设想。本文所涉及的提速问题，对新线设计中的相关技术标准的确定，也有一定的参考价值。

Based on the specialities of the existing mountain railways,the main factors which influence the speed raising on these railways are analyzed.Considering the selection of the superelevation parameters on curves,the requirement for comfortability,as well as the factors to fulfill the reguirement of uniform wear on inside and outside of the track,the method for determining the target value of raising speed and the corresponding technical and engineering countermeasures are proposed,including the determination of the radius of curves,the minimum length of straight track between curves,the length of the transition curves,etc.The measure for the organization of train operation and the suggestion for adopting the tilting vihecles are also proposed.The problems concerned with the speed raising mentioned in this paper is also valuable as refrence for the determination of the reative technical standards in the design of the new railway lines.