摘要
应杭州市三堡排涝工程(钱塘江排水口至凤起东路)三个标段施工需要,需对三堡排涝工程施工范围进行二等GPS平面控制测量.作业采用索佳NET05X全站仪测定两条基线,用改正后测距基线边长对GPS平面控制拟合平差,由于测线边长的精度直接影响到整个二等控制网内GPS点的坐标的准确度,因此作业过程中非常有必要分析基线的精确测定有关的测距精度影响因素,对索佳NET05X全站仪测距精度影响原理进行分析,并在作业过程中正确进行必要的检查、检测与操作处理.
Second GPS horizontal control survey was conducted because of the drainage construction in Sanbao Works（from Qiantang River outlet to Fengqi East Road）.Two baselines were determined by Total Station Sokkia NET05X and the fitting adjustment in ranging baseline was corrected by GPS horizontal control.The accuracy of ranging line directly affects the GPS coordinates in second control network.The relevant factors of the ranging accuracy are analyzed in the paper,especially in terms of baseline,and influential principles in ranging accuracy by Total Station Sokkia NET05X are also discussed.It is pointed out that the ranging accuracy should be corrected,tested and re-operated in process and treatment.
出处
《浙江水利水电专科学校学报》
2010年第4期7-10,17,共5页
Journal of Zhejiang Water Conservancy and Hydropower College
