城市轨道交通曲线轨检里程惯性偏差分析与校正
Analysis and Calibration on Curve Track Inertia Mileage Error in Urban Rail Transit
摘要:
轨检车已经成为一种高效的城市轨道交通轨道几何状态的自动检测工具，检测里程的准确性直接影响轨道几何状态不良的定位和相应的处理策略。本文针对上海轨道交通轨检车检测数据的分析中存在的曲线里程与其物理里程不一致的现象，为探究其产生原因和规律，开展了数据对比分析，并据此，提出了一种曲线里程自动校正模型和计算方法。实践应用分析表明，模型及其方法正确、可靠，具有一定的应用价值。
Abstract:
Track Inspection Car has been an effective automation tool to measure track geometric status in urban rail transit, and the accuracy of mileage affects directly the analysis of the location and its counter-measurement of track irregularity. In Shanghai Metro, the mileage of curves inspected by track inspection car is found to be different from the actual mileage recorded in document. In order to explore the reasons and change rules of such error, some analysis is carried out in this paper, and an automatic calibration model and its calculation method are put forward. Large amount of data analysis result shows that the method is correct, reliable and useful.
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