龙江特大桥二等控制网的建立  

Establishment of Second-Grade Control Network in Longjiang Large Bridge

作　　者：曹绍武 陈冲林 李亚明 段焕廷 CAO Shao-wu;CHEN Chong-lin;LI Ya-ming;DUAN Huan-ting(Yunnan Institute of Surveying and Mapping of Geology and Mineral Resources,Kunming Yunnan 650218,China)

机构地区：[1]云南省地矿测绘院,云南昆明650218

出　　处：《地矿测绘》2018年第2期26-28,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：随着国内造桥技术的不断提升,其前期控制测量成果精度要求也随之提高。文章以亚洲最大的钢箱梁悬索桥——龙江特大桥为例,详细介绍了龙江特大桥二等控制网的建立方法。通过对该控制网成果精度的分析,得出该网精度能满足规范和设计要求的结论,表明该方法合理可行。With the continuous improvement of bridge construction technology in china,the accuracy requirements of control surveying results at the earlier stages have also been improved. Taking Longjiang large bridge as an example,this paper has a detailed description on the establishing method of second-grade network in Longjiang large bridge,the largest steel-box girder suspension bridge in Asia. Through the accuracy analysis of the control network,it concludes that the network precision can meet the requirements of the specifications and design,which shows that the method is reasonable and feasible.

关 键 词：GNSS控制网 独立坐标系 COSA软件 精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]