摘要
在布设隧道工程 GPS控制网过程中 ,根据工程具体要求 ,需对工程 GPS控制网进行基准设计。有的工程要求边长投影到测区平均高程面上 ,应对起算数据进行处理 ;有的工程要求采用一点一方位为控制网起算 ,以保证 GPS网内符合精度不受损失。
In the process of establishing GPS control network of the tunnel engineering, according to engineering specific demand, it is necessary to design datum for engineering GPS control network Some demand for length of side to be projected on the average altitude plane in the measured area, which should process the starting data of calculation Some demand one point and one direction be adopted as starting calculation of control network to ensure GPS network for according with precision
出处
《福建地质》
2002年第4期230-234,共5页
Geology of Fujian
关键词
GPS控制网
基准设计
平均高程面
隧道工程
数据处理
GPS control network, datum design, average altitude plane, one point and one direction
