铁路轨道其平面均由直线和曲线组成，丘陵地带和山区铁道曲线比重约占40％－60％，甚至更多。因此，由于钢轨既承受机车车辆的荷重又起着导向作用，曲线方向经常发生变化，直接影响行车安全和运输能力，必须及时进行线路养护和整修。其中曲线整正工作是一项十分重要的内容。既 The plane of the railway track consists of straight lines and curves, and the proportion of the railway curves in the hills and mountains accounts for about 40% -60% or even more. Therefore, since the rails not only bear the load of locomotives but also play a guiding role, the direction of the curves often changes, which directly affects traffic safety and transportation capacity. Therefore, the maintenance and renovation of the lines must be carried out in time. Curvature correction work is a very important content. Both