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高速铁路无砟轨道施工建设需要布设高精度的轨道控制网(CPIII),要求相邻点平面相对精度优于1mm,同精度复测较差优于3mm。本文针对轨道控制网测量工程的特点,提出一种适合轨道控制网精密测量数据的处理方法,并采用国内某客专的实测数据进行了分析验证。实验结果表明,采用本文提出的方法能有效提高轨道控制网的平差精度、可靠性和计算效能。
High-speed railway ballastless track construction requires the deployment of high-precision orbit control network (CPIII), the relative plane accuracy requirements of adjacent points better than 1mm, with the accuracy of better than 3mm retest poor. In this paper, according to the characteristics of the track control network measurement project, a method for processing the precise measurement data of the track control network is proposed. The analysis and verification of the measured data of a passenger service station in China are carried out. Experimental results show that the method proposed in this paper can effectively improve the accuracy, reliability and computational efficiency of trajectory control network.