斜拉索锚固管解析定位方法研究

Study of Analytical Positioning Method for Anchorage Pipe of Cable

斜拉索锚固管的安装定位是斜拉桥施工的难点之一。本文首先介绍三维解析定位方法的基本原理 ,即由待测目标的几何模型确定定位元素并计算精度要求 ;然后系统分析基于极坐标法的全站仪三维测量的精度 ;最后介绍应用实例。该方法已成功应用于数座特大型斜拉桥的施工建设。

Positioning for anchorage pipe of cable is one problem in construction of cable stayed bridge. This paper introduced the principle of 3 D analytical positioning method, in which positioning elements and precision are analyzed on the basis of geometric model of positioning objects. And then the precision of 3 D surveying based on polar method using total station instrument are studied systematically. This method has successfully proved in construction of several cable stayed bridge.