1前言列车在小半径曲线（R＝250m）地段运行时，钢轨受到各种力的作用，在这些作用力的方向上必须要强化一些弹性支撑，以防止钢轨在枕木上移动、倾翻及轨距扩大等，这些弹性支撑通常采用轨距杆和轨撑。本文主要研究采用轨距拉杆和轨撑作为强化部件，在各种技术状态下的钢轨倾 1 INTRODUCTION When a train is operating on a small radius curve (R = 250m), the rails are subjected to a variety of forces that must be strengthened in the direction of these forces to prevent them from moving on the sleepers, tilting and railing To expand, etc., these flexible supports usually use gauge bars and rail braces. This paper mainly studies the use of gauge rod and rail brace as strengthening components, under various technical conditions of the rail dump