为保证高速铁路无碴轨道的顺利铺设和沉降变化符合设计规范,必须对高铁施工阶段进行严密和符合规定的周期性高精度观测,高精度无碴轨道施工测量控制网的建立是无碴轨道施工测量的基础包括。正确的选择仪器、规范的观测和合理的周期性观测是获取高精度数据的必要保证。 In order to ensure the smooth laying and settlement of high-speed railway ballastless track changes in line with design specifications, high-speed railway construction phase must be strictly and in line with the provisions of periodic high-precision observations, high-precision ballastless track construction measurement control network is ballastless track construction The basis of measurement includes. Correct choice of instruments, standardized observations and reasonable periodic observations are necessary guarantees for obtaining high-precision data.