GPS、全站仪和CAD在高架桥测设中的应用研究

Applied Research of GPS,Total Station Theodolite and CAD in Setting Out Viaduct

GPS(全球卫星定位系统)现已广泛地应用在导航、定位等各领域,尤其在测量界的控制测量中起到了划时代的作用。利用GPS建立高架桥和道路的控制网;用全站仪测设高架桥与道路;把全站仪和用CAD设计的道桥数据有机地结合,实现自动计算、快速放样,是使工程按设计要求圆满地完成任务并取得可靠精度的新研究思路。现以某高架桥工程为例,介绍了实施方法。

GPS(Global Positioning System)has been widely applied in many fields such as navigation and location,especially in control surveying.In engineering surveying,establishing viaduct and road network by using GPS,setting out viaduct and road by total station theodo-lite and combining total sta tion theodolite with road data designed by CAD to realize auto-matic calculation and quick setting out are new research idea by which the task can be finished successfully and reliable accuracy can be gained according to project design requirement.The implementary method is introduced by a viaduct project in this paper.