摘要
地铁精密导线网各边长需要相应的改正处理,才能用于平差计算,而常规手工计算量大,容易出错。文中通过实例计算说明边长高程归化和投影改化的必要性,利用自编程序进行边长归化改正自动化批量处理,平差文件及观测手簿的自动生成,实现了与科傻平差软件的无缝衔接。结合福州地铁4号线精密导线网复测数据进行处理,验证了程序的正确性和有效性;并对复测成果精度及控制点稳定性进行了分析评估,为地铁施工提供了精确的测量基准。
The corresponding corrections are needed for the length of each side of field survey data of metro precise traversing network before they can be used for adjustment calculation,but conventional manual calculation is large and easy to make mistakes.The paper illustrates the necessity of datum plane reduction and gauss projection through example calculation,carries out automatic batch processing of side length reduction correction through self-made program,and automatically generates adjustment files and observation handbooks,so as to realize the seamless connection with COSA adjustment software.The correctness and effectiveness of the program are verified by processing the retest data of Fuzhou Metro Line 4 precise traversing network,the accuracy of retest results and stability of control points are analyzed and evaluated,which provides accurate measurement datum for subway construction.
作者
周永领
ZHOU Yongling(Fuzhou Investigation&Surveying Institute Co.,Ltd.,Fuzhou 350108,China)
出处
《城市勘测》
2022年第5期121-124,共4页
Urban Geotechnical Investigation & Surveying
关键词
地铁
精密导线
边长改化
程序实现
复测成果分析
metro
precise traversing
side length change
program implementation
analysis of retest results
