轨道精调后动静态轨道质量指数的相关性研究  

Research of the Correlation Between Dynamic and Static Track Quality Index After Fine Adjustment

作　　者：邱俊兴 许玉德[1] 沈坚锋[1] 毛晓君[2] 

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201804 [2]上海铁路局科研所,上海200071

出　　处：《石家庄铁道大学学报（自然科学版）》2017年第2期83-88,共6页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：国家自然科学基金(50908179);上海市自然科学基金(11ZR1439200)

摘　　要：轨道精调达到静态峰值验收标准后,进入动态联调联试调整阶段,联调联试时间紧任务重,为减少调整工作量,希望实现静态TQI预测动态TQI。引入动静比研究精调后动静态TQI之间的关系,分析动检速度和线形对动静关系的影响,通过分析动静比的置信区间,实现静态TQI预测动态TQI。结果表明:动态TQI比静态TQI大1.0~1.5倍,同一线路中,TQI动静比与动检速度正相关,与线形不相关;从杭长高铁情况来看,对于设计时速300~350 km/h的高速铁路,将全线静态TQI控制在2.65 mm以下,可保证动态验收合格,从宁安高铁情况来看,对于设计时速200~250 km/h的高速铁路,将静态TQI控制在4.60 mm以下,可保证动态验收合格,可靠度均达95%以上。After the track achieves the static acceptance standard, it＇s the stage of dynamic combined test, which has heavy tasks and time is limited. To reduce the workload, it is desirable to predict dy- namic TQI through static TQI. By introducing the ratio of dynamic TQI and static TQI analyzing the re- lation between them analyzing whether dynamic detection speed and line type have influence to the ratio, dynamic TQI is predicted base on the confidence interval of the ratio. The result shows that, dynamic TQI is 1.0-1.5 times larger than static TQI, and the ratio between dynamic TQI and static TQI has positive correlation with dynamic detection speed, but has no correlation with line type. The data of Hangzhou-Changsha high speed railway shows that, for railway designed speed of 300-350 km/h, it is needed to control static TQI of whole line under 2.65 mm to ensure dynamic acceptance up to standard, and the reliability up to 95%. The data of Nanjing-Anqing high speed railway shows that, for railway designed speed of 200-250 km/h, it is needed to control static TQI of whole line under 4.60 mm to en- sure dynamic acceptance up to standard, and the reliability up to 95 %.

关 键 词：无砟轨道 轨道质量指数 置信区间 动静态相关性 

分 类 号：U238[交通运输工程—道路与铁道工程]