论文部分内容阅读
前言既有铁路线上,处理道床和路基病害时,在路基面宽度允许的情况下,经常采用拨便线的方法。一般直线地段拨便线,要计算轨线伸
Preface Existing railway line, handling bedbeds and roadbed disease, the width of the roadbed in the case of permission, often using dial-up method. Dial the general straight line, to calculate the trajectory