扩展了大不列颠 (GB) 主线网络上 squats 的统计分析
G Tucker1, K Sztrauch1, A Bevan1
1University of Huddersfield, UK.
Heliyon
|November 13, 2023
概括
腰缺陷是一个常见的铁路问题,受到头部磨损和轨道曲率等因素的影响. 较大,更坚固的轨道和关节等特定位置不太容易,为维护策略提供信息.
科学领域:
- 铁路工程 铁路工程是指铁路工程.
- 材料科学是一种材料科学.
- 资产管理资产管理.
背景情况:
- 位缺陷是普遍存在的轨道表面问题,需要进一步了解有效控制.
- 之前的研究已经提升了对坐启动机制的了解,但仍需要全面的解决方案.
研究的目的:
- 为了分析九年来在GB主线轨道2600公里的位缺陷数据.
- 确定影响不同轨道位置 (平线,交叉路口,接头,接) 位发展的关键因素.
- 提出 squat 缺陷的实际管理方法和未来研究方向.
主要方法:
- 从2600公里的轨道上分析了9年的位缺陷记录.
- 单独审查平线上的,十字路口,接头和接.
- 与头戴率,轨道段,材料硬度,轨道曲率和火车速度等因素对坐的发生的相关性分析.
主要成果:
- 部的发育与不同的因素相关,取决于轨道位置.
- 头部检查缺陷显著影响腰概率和其他因素的影响.
- 90%的可以在头戴率低于0.2毫米/年的轨道上进行.
- 较大的截面 (60公斤/米) 和更硬的 (260布里内尔) 轨道显示敏感性降低.
- 狭窄的曲线和在垂直不连续性 (接头,十字路口) 的列车速度增加增加了坐的风险.
结论:
- 腰缺陷的发生和影响因素因轨道位置而异.
- 轨道材料的特性 (尺寸,硬度) 和磨损率在 Squat 预防中至关重要.
- 了解轨道几何,运行因素和轨道状况的相互作用是管理式缺陷的关键.
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