GPS在南水北调隧道控制测量中的应用

GPS Technique in Application to Tunnel Control Surveying for South to North Water Diversion Project

近年来随着我国基础设施建设的飞速发展,建设大跨度桥梁与隧道贯通工程也发展很快。采用GPS静态相对定位技术建立桥梁与隧道施工控制网,既能满足工程精度要求,又能提高工效、满足工程进度要求。因此GPS定位技术在桥梁与隧道控制测量中已获得广泛的应用。本文主要介绍了GPS在南水北调隧道控制测量中控制网的布设、施测以及平差和精度统计。

In recent years, along with the fast infrastructure development, more and more tunnel engineering and long span bridge have been planned into construction. The GPS static relative positioning technique has been used to establish the control network for these projects. It can satisfy the required engineering accuracy and improve working efficiency to meet project schedule. In view of this, GPS has a wide application area in such engineering. This paper mainly introduces the establishment, surveying and adjustment of GPS control network for south to north water diversion project.