城市轨道交通小半径曲线钢轨磨耗分析  

Analysis of Rail Wear on Sharp Curve of Urban Mass Transit

作　　者：周宇[1] 詹刚[2] 许玉德[1] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海博士讲师200092 [2]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《城市轨道交通研究》2011年第7期42-46,共5页Urban Mass Transit

基　　金：国家自然科学基金(50908179);高等学校博士学科点专项科研基金(200802471003);上海市自然科学基金(11ZR1439200)

摘　　要：对上海轨道交通1号线、8号线的典型小半径曲线钢轨磨耗进行了跟踪测量,统计分析了小半径曲线钢轨的侧磨和垂磨特征及相应的磨耗发展率。认为小半径曲线钢轨受侧磨、垂磨和不均匀磨耗的共同影响,大编组、重型车的线路中,平均侧磨发展率约为0.019mm/d,平均垂磨发展率约为0.005mm/d;小编组、轻型车的线路中,平均侧磨发展率约为0.001mm/d,平均垂磨发展率约为0.002mm/d。该分析结果可为合理采取钢轨减磨措施、有效延长钢轨寿命提供参考。On the basis of rail wear successive measurement in the typical sharp curves of Shanghai metro lines,the side wear and vertical wear of rails and their growth rate are analyzed. The data shows that rails on the sharp curve are affected by the side wear, vertical wear and irregular wear altogether. The average growth rates of side wear and verti- cal wear are about t）. 019 mm/d and 0. 005 mm/d respec- tively in long-formation and heavy-train line. While in short-formation and light-train line, the two indexes are a- bout 0. 001 mm/d and I）. 002 mm/d respectively. This re- search can provide reference for applying the wear-reducingmeasures to extend the life-circle of rail effectively.

关 键 词：城市轨道交通 小半径曲线 钢轨侧磨 钢轨垂磨 

分 类 号：U213.42[交通运输工程—道路与铁道工程]