铁道标准设计2017，Vol.61Issue(4)：33-37,5.DOI:10.13238/j.issn.1004-2954.2017.04.008
基于故障树分析法的高速铁路钢轨断裂机理分析
Rail Breakage Mechanism Analysis of High Speed Railway Based on Fault Tree
摘要
Abstract
According to the rail defects classification based on UIC Code and GB railway standards, types and causes of rail breakage are summarized through Static Fault Tree Analysis and the minimum cut sets and the relative importance of bottom events are determined.The results show that non-timely replacement of rail and inspection maintenance are the most primary causes of rail breakage;stress concentration and big contact stress are the main causes;low rail strength, non-timely lubrication and adjustment of edges are also major contributors.By improving testing and monitoring methods and workers' efficiency, repairing the rail timely, preventing stress concentration and big contact stress, selecting suitable rails, lubricating rails and adjusting edges in a timely manner, rail accidents could be reduced.关键词
高速铁路/故障树/断轨/最小割集Key words
High-speed railway/FTA/Rail breakage/Minimum cut set分类
交通工程引用本文复制引用
杨凯,瞿福林,邱秀姣,陈嵘..基于故障树分析法的高速铁路钢轨断裂机理分析[J].铁道标准设计,2017,61(4):33-37,5.基金项目
铁道部科技计划重点项目(2012G013-A) （2012G013-A）
国家自然科学基金委高铁联合基金重点项目(U1234201) （U1234201）
