宜昌市伍家岗长江大桥控制网复测方法及成果分析  

Retest and Results of Control Network of Wujiagang Yangtze River Bridge in Yichang City

作　　者：邓南山 易鸿杰 DENG Nanshan;YI Hongjie(Central South Institute of Metallurgical Geology,Yichang 443003,China;Yichang Geotechnical Investigation and Surveying Institute Co.,Ltd.,Yichang 443003,China)

机构地区：[1]中南冶金地质研究所,湖北宜昌443003 [2]宜昌市勘察测绘研究院有限公司,湖北宜昌443003

出　　处：《城市勘测》2024年第4期142-145,共4页Urban Geotechnical Investigation & Surveying

基　　金：基于北斗地基增强系统的气象监测技术研究(A23-2-039)。

摘　　要：以宜昌市伍家岗长江大桥为例,对大桥复测控制网的实施及成果进行了全面梳理,分析了控制点稳定性及部分控制点变形原因。同时就本案例中关键起算点被破坏的情况,提出了针对性解决方案。实践表明该方案能保证复测控制网坐标基准的延续性及控制网的精度和成果可靠性,为大桥后续运营阶段监测工作提供了有效的控制基准。研究成果针对控制网建设中起算资料不足等问题有不错的参考借鉴意义。Taking Wujiagang Yangtze River Bridge in Yichang City as an example,the implementation and achievements of the retest control network of the bridge are comprehensively combed,this paper analyzed the stability of control points and the reasons for some control point deformations.At the same time,this paper puts forward a targeted solution to the situation of the key control point in this case The project practice shows that the scheme can ensure the continuity of the coordinate datum of the retest control network and the accuracy of the control network and the reliability of the results,which provides an effective control datum for the monitoring work in the subsequent operation stage of the bridge.The research results have good reference significance for other similar projects.

关 键 词：长江大桥 控制网复测 控制点稳定性分析 跨河水准 

分 类 号：P258[天文地球—测绘科学与技术]