斜拉桥锚板式锚固结构安装测量控制技术

Surveying Control Technology for Installation of the Anchorage Structure with Anchor Plate for Cable-stayed Bridge

青岛海湾大桥红岛航道桥索塔锚固区采用国内首创的锚板式锚固结构,定位精度要求极其苛刻。对平面控制采用2台全站仪对向观测,并时刻进行坐标比测;对标高控制采用三角高程控制测量方法,以提高锚板安装的定位精度,保证锚固结构质量。采用该项技术缩短了测量时间,满足测量规范要求。

The anchorage structure with anchor plate was used for the first time in China in the anchorage zone of the cable towers of Hongdao Channel Bridge of Qingdao Bay Bridge.The requirement to the positioning accuracy was extremely high with this technology.For plane control,two total stations were used for reciprocal observation and measured coordinates were compared constantly.For elevation control,triangle elevation control measurement was used to improve the positioning accuracy of the anchor plates and ensure the quality of the anchorage structure.The adoption of this surveying control technology shortened the surveying time and met the requirement of survey specifications.