地铁铺轨基标测量的关键技术及质量控制

Key technology and quality control of subway track laying benchmark survey

作为一项高精度的精密测量工作,地铁铺轨基标测量工序多,程序复杂。本文通过工程实践,探讨了目前地铁铺轨基标测量的关键技术要点,并在此基础上依据误差传播理论,分析影响地铁铺轨基标测量精度的有关因素,提出了相应的措施来提高地铁铺轨基标测量精度,确保工程质量。

As a high accuracy measurement project, subway track laying benchmark survey has many complex working procedures. Based on the project practice, this paper discusses the key technologies used in the subway track laying benchmark survey, and analyzes the factors influencing the survey accuracy based on the error propagation theory. Some measures are proposed to improve the precision and quality of the project.