基于GPS网“一点一方向”平差的变形监测建网研究

One point and one direction adjustment method for deformation monitoring GPS network

由于常规控制网建网方法对狭长型工程建网的不适宜性,本文采用工程GPS网"一点一方向"平差的建网方法来建立变形监测平面基准网。本文首先阐述GPS网"一点一方向"平差的原理,然后结合工程实例对GPS网"一点一方向"平差结果进行详细分析,得出工程GPS网"一点一方向"平差对狭长型工程独立控制网的建立具有灵活性、实用性和高精度性的结论。

The one point and one direction adjustment method for GPS network is proposed to improve the inadaptability about plane datum of the conventional control network method for the long and narrow deformation monitoring engineering. The adjustment theory is expounded and adjustment results are analyzed in details with a real engineering project. At last,the results show that one point and one direction adjustment method has flexibility,practicality and high precision for deformation monitoring of the long and narrow engineering.