【摘要】 与高速铁路平顺性最为相关的静检数据是长波数据,而工程实用性最好的长波测量方法当属相对测量中的半测回法,但其长波精度亟待提高。《轨道长波不平顺半测回法测量精度的研究(Ⅰ)》一文已经研究了影响半测回法长波精度的因素,建立了实时地球自转补偿的数学模型,并验证了其有效性,但该文还仅仅是根据线路设计资料进行实时补偿。这种基于设计姿态补偿地球自转的半测回法受到有无设计资料的限制,且当实际与设计出入较大时精度无法保证,因此本文继续发展了基于轨检仪实时姿态补偿的半测回法,其使用姿态角增量进行长波计算的方法也较之前更为合理。试验结果表明,基于实时姿态补偿的半测回法比基于设计姿态补偿的半测回法精度更高,尤其在线路偏差较大的时候。更多还原

【Abstract】 The most relevant static detection data with the ride quality of high-speed railway is its long-wave data. Among all the long-wave measurement methods, the semi-observation method of relative survey has the best engineering practicability if its long-wave accuracy can be improved. The factors that influence the long-wave accuracy of the semi-observation method were studied, and the real-time earth-rotation compensation model was founded and its effect was verified in the paper “Study on Improving Accuracy of Track Long-wave Irregularity Measured by Semi-observation Method(Ⅰ)”, which just performed the real-time compensation according to the line design data. This kind of semi-observation method based on the design attitude to compensate for the rotation of the earth was limited by the availability of design data, and its accuracy can not be guaranteed when the actual deviation from the design was large. Therefore, this paper continued to develop the semi-observation method compensated by using the real-time attitude of the track detector, whose method of using attitude-angle increments to calculate the long-wave was more reasonable than before. The experimental results show that the precision of the method based on real-time attitude compensation is higher than that based on design attitude compensation, especially when the line deviation is large.更多还原