南京长江四桥首级施工控制网的建立

Establishment of head control network of Nanjing NO.4 Yangtze river bridge

本文对南京长江四桥首级施工控制网的建立及特点进行了介绍,对如何采用当前测绘新技术布测特大型桥梁首级控制网并提高其成果精度、可靠性等相关技术指标进行了探讨,对类似精密工程项目具有积极的借鉴意义。

This article introduced establishment and characteristics of Head control network of Nanjing No.4 Yangtze River Bridge,discussed about how to improve the accuracy,reliability and other index of Head control network of extra large bridge with present advanced surveying technology,which could afford some positive experiences to similar precise engineering survey projects.