CORS系统在山区高速铁路勘测中的应用

Application research of CORS system in the survey of high speed railway in mountainous area

文章旨在论述CORS系统的基本情况。某山区铁路初步设计阶段,在充分考虑工程线路走向、地质条件、CORS站设站条件、整体组网网形等多方面综合因素的前提下,建立能够匹配、高性价比的本工程项目独立CORS系统,替代传统GNSS基准站作业模式,发挥CORS系统的长距离区域作业优势,服务勘察设计各项外业阶段工作。同时,对CORS系统组网精度、铁路首级控制网成果点测试精度、工点测量精度进行统计分析,总结CORS系统应用结论及推广应用思考。

This thesis discusses the basic situation of CORS system.In the preliminary design stage of a mountain railway,under the premise of fully considering many comprehensive factors,such as engineering line direction,geological conditions,CORS station setting conditions,overall network shape and so on,an independent CORS system of this project with high performance-to-price ratio is established to replace the traditional GNSS reference station operation mode and give full play to the long-distance regional operation advantages of CORS system to serve the field work of survey and design.At the same time,based on the statistical analysis of the networking accuracy of CORS system,the test accuracy of railway primary control network and the measurement accuracy of construction point,the application conclusion of CORS system and the consideration of popularization and application are summarized.