鄂州花湖机场首级控制网的建立及精度验证  

The establishment and precision validation of the first level surveying control network in Ezhou Huahu Airport

作　　者：陈元洪 高方强 张广东 CHEN Yuanhong;GAO Fangqiang;ZHANG Guangdong(Wuhan Geotechnical Engineering and Surveying Co.,Ltd.,Wuhan,Hubei 430022,China)

机构地区：[1]武汉市勘察设计有限公司,湖北武汉430022

出　　处：《测绘标准化》2024年第1期156-160,共5页Standardization of Surveying and Mapping

摘　　要：大型工程项目施工前必须建立首级控制网。针对非城镇区大型工程项目同时建立平面控制网和高程控制网的应用研究较少,本文详细介绍鄂州花湖机场控制网建立过程。首先,采用全球导航卫星系统(GNSS)静态观测模型建立平面控制网(最弱边相对精度为2.15 ppm);其次,采用水准测量建立高程控制网(高程中误差为0.037 mm);最后,利用两套坐标成果求解机场区域坐标转换参数(七参数和四参数转换中误差分别为0.35 cm和0.02 cm),并利用求解的转换参数检核网外已知点,统计其平面坐标中误差为0.39 cm。结果表明,本项目建立的控制网成果可靠,本文方法可以为类似工程项目提供参考。The first level surveying control network must be established before the construction of large engineering.For large engineering in non urban areas,the research and application of establishing horizontal and vertical surveying control networks at the same time is less.This paper introduces the process of establishing surveying control network of Ezhou Huahu Airport in detail.Firstly,using global navigation satellite system(GNSS)static observation mode to establish horizontal surveying control network(the relative accuracy of the weakest edge is 2.15 ppm);Secondly,using level survey to establish vertical surveying control network(the mean square error of height is 0.037 mm);Finally,using the two sets of coordinates to calculate the transformation parameters of airport area(the mean square error in seven-parameter and four-parameter conversion are 0.35 cm and 0.02 cm,respectively),furthermore,The known points outside the network are checked by using the transformation parameters,and mean square error of horizontal is 0.39 cm.The results show that the control network established in this project is reliable,and this method can provide reference for similar projects.

关 键 词：鄂州花湖机场 测量控制网 数据处理 坐标转换参数 

分 类 号：V351[航空宇航科学与技术—人机与环境工程] TU198[建筑科学—建筑理论]