铁路曲线上的钢轨,由于受到列车运行时的离心力以及制动时的摩擦力等外力的推动而产生位移,这种位移积累到一定的程度便会影响列车运行的平稳和安全,因此需要每隔一段时间进行一次复测,并把轨道拨正到原设计或接近原设计的规则的形状。目前,铁路曲线的测量方法大多采用偏角法或矢距法,选定曲线半径则常用图解法或分 Railroad track on the rail, due to the centrifugal force of the train running and braking friction and other external forces caused by the displacement, the displacement accumulated to a certain extent will affect the smooth and safe train operation, so every Perform a retest for a period of time and set the track to the original design or to the shape of the original design rule. At present, most of the railway curve measurement methods using deflection method or pitch method, the selected curve radius is often used graphic or sub