基于斜拉桥主塔施工极坐标法放样精度估算及误差分析

The Construction Lofting Precision Evaluation and Error Analysis of Main Tower of Cable-stayed Bridge with Polar Coordinate Method

通过对三维空间坐标测量基本原理的分析,确定测量误差的主要来源,根据全站仪三维坐标法放样精度估算及误差分析,算出相应的定位精度公式,在施测过程中制定相应的质量控制措施,保证三维空间坐标测量满足工程测量的精度要求。

Based on the analysis of the three-dimensional coordinates measuring principle,the main source of measurement error are determined. According to the method of total station three-dimensional coordinate lofting precision estimation and error points,the corresponding formula of location accuracy in measuring process is calculated to develop the corresponding quality control measures. The three-dimensional coordinates measuring can satisfy the demands of engineering measurement accuracy.