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针对高速铁路无砟轨道施工测量精度要求高,在建网和施工测量时经常出现测量精度达不到规范要求的技术难题,结合沪杭高速铁路CRTSⅡ型板施工加密基标(轨道基准点,简称GRP)测量情况,研究时速350 km高速铁路CRTSⅡ型板式无砟轨道GRP网的布设测量技术,对测量过程中布网、技术准备、测量方法、测量环境等影响测量精度的因素进行分析研究,找出成因,反复验证,得出高速铁路CRTSⅡ型板施工GRP测量技术,并提出了对测量过程中难点问题的解决方法。
For the high-speed railway ballastless track construction of high precision measurement requirements, often in the construction of the network and construction measurement accuracy not meet the technical requirements of the technical requirements, combined with Shanghai-Hangzhou high-speed railway CRTS Ⅱ type plate construction base standard (Track Reference Point, referred to GRP) to study the layout technology of CRTS II slab track GRP network of 350 km / h high speed railway, to analyze the factors that influence the measurement accuracy in the process of measurement, such as the cloth net, technical preparation, measurement method and measurement environment Out of causes, repeated verification, come to CRTS Ⅱ high-speed railway construction GRP measurement technology, and put forward the solution to the difficulties in the measurement process.