レール頭頂面形状の簡易な評価手法とレール削正への活用法

抄録

Rail grinding is an essential maintenance way to remove rail surface defects and restore the profile of railhead. However, the amount of metal removal decreases against rails with a flat cross-sectional profile, which increases maintenance frequency and maintenance costs of railway track. To improve the quality and efficiency of rail grinding, this study proposes a quantitative index for evaluating cross-sectional profile of railhead and a simplified method to determine a grinding pattern based on this index.

Finally, the proposed method has been confirmed to be applicable to on-board measurement of rail profile.