德国轨道基准网(TRN)是CRTSⅡ型板式无砟轨道技术的一部分,并在我国高速铁路精密测量中普遍应用,但德国缺乏适合国内测量习惯的精度评定方法,而且其0.1mm的高差中误差也不客观。本文首先介绍德国TRN高程网测量和数据处理方法,分析TRN往返测高程较差限差与高差中误差的关系,并在此基础上,根据TRN高程网往返测高差较差,提出TRN高差中误差的计算方法,推导其数学模型,并采用该模型计算和统计了某高速铁路TRN的相邻轨道基准点(TRP)间的高差中误差。研究认为0.3mm的高差中误差应为TRN高程网的精度标准,其结果对完善我国高速铁路工程测量规范和指导生产具有较大的参考价值。 TRN is a part of CRTS II slabless track technology and is widely used in the precision measurement of high-speed railway in China. However, the accuracy assessment method suitable for domestic measurement is lacking in Germany, and the error of 0.1mm height difference Not objective. This paper first introduces the measurement and data processing method of TRN elevation network in Germany, analyzes the relationship between the difference between the difference between the height of TRN return trip and the height difference, and on the basis of this, The calculation method of the error of the high-speed railway TRN is deduced, and the mathematical model of the high-speed railway TRN is deduced. The error of the height difference between the adjacent track reference points (TRP) of a high-speed railway TRN is calculated and calculated. The research shows that the error of 0.3mm height difference should be the accuracy standard of TRN elevation net, and the result has a great reference value for perfecting China’s high-speed railway engineering measurement specification and guiding production.