本文以宜昌庙嘴长江大桥大江桥为例,阐述了地锚式悬索桥主缆型钢锚固系统施工过程中的测量控制,包括高精度控制网建立,已知点建站,未知点双边单角后方交会建站,设置锚杆预偏,及锚杆空间参考线定位,并对型钢锚固系统施工进行了测量精度分析和安装变形分析。 This paper takes Diangjiang Bridge of Yichang Miaozui Yangtze River Bridge as an example, and expounds the measurement control during the construction of the main cable steel anchorage system of the ground anchored suspension bridge, including the establishment of a high-precision control network, the establishment of a known point, the unilateral double corner construction , Setting the pre-deflection of the anchor rod and positioning of the reference line of the anchor rod, and analyzed the accuracy and deformation analysis of the anchorage system.