摘要
本文采用WILD T2000全站型经纬仪结合某河大桥工程建立平面控制网,并对电磁波测距三角高程跨河测量和以三维三角测量确定高程作了试验,试验表明,平面控制用Ⅱ等、跨河高程测量按Ⅲ等能达到有关规范中相应等级的精度要求,该法比常规测量能大大提高工效、缩短外业时间。
This paper deals with the establishment of horizontal control network with WILD T2000 and elevation measurement both through trigonometrical river-crossing leveling with EDM and three-dimentional trigonometrical leveling. The test shows that the accuracies of plane and elevation can meet the correspondent standard if Ⅱ order observation is applied to the former and Ⅲ order to the latter. This method, in comparison with the traditional way will improve working efficiecy and save field job time.
出处
《工程勘察》
CSCD
北大核心
1989年第1期46-50,共5页
Geotechnical Investigation & Surveying
