| 地铁波磨钢轨修理性打磨前后不平顺特性对比分析 |
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| 引用本文： | 常素良,吴宗臻,方树薇,王文斌,孟磊,刘尧.地铁波磨钢轨修理性打磨前后不平顺特性对比分析[J].现代城市轨道交通,2020(6):95-100. |
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| 作者姓名： | 常素良 吴宗臻 方树薇 王文斌 孟磊 刘尧 |
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| 作者单位： | 北京市地铁运营有限公司线路分公司;中国铁道科学研究院集团有限公司城市轨道交通中心;北京市地铁运营有限公司地铁运营技术研发中心 |
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| 基金项目： | 铁科院(北京)工程咨询有限公司科研项目——城市轨道交通钢轨预打磨质量评价方法研究(2019ZXJ001)。 |
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| 摘 要： | 在北京地铁6号线路上选取一段典型的波磨区段,对其开展修理性打磨,并对打磨前后钢轨表面不平顺进行测试和对比分析,分析结果表明:该区段波磨典型的波长为63 mm,其中曲线内轨波磨较为严重;修理性打磨可以有效消除63 mm波长的典型钢轨波磨。然后对打磨质量进行量化评估,得出修理性打磨后钢轨表面不平顺状态满足验收标准。
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| 关 键 词： | 地铁 钢轨波磨 修理性打磨 不平顺特性 质量验收 |
Comparative analysis of irregularity characteristics before and after repair grinding of rail corrugation on metro tracks |
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| Abstract: | A typical corrugation section on Beijing metro line 6 is selected to carry out repair grinding,and the rail surface irregularities before and after grinding are tested and compared.The analysis results show that the typical wave length of corrugation in this section is 63 mm,in which the rail corrugation in the curve is more serious,the typical rail corrugation with 63 mm wave length can be effectively eliminated by repair grinding.The quality of grinding is evaluated quantitatively,and it is concluded that the rail surface irregularities after the repair grinding meet the acceptance criteria. |
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| Keywords: | metro rail corrugation repair grinding irregularity characteristics quality acceptance |
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