摘要
GPS在建网方面精度高、选点灵活、观测时间短,作业效率高。以104国道浦泗立交至南京二桥段公路(浦仪公路西段)控制网为例,对公路段进行一级静态控制测量,对桥梁段进行二等控制测量,对公路两种等级控制网进行基线解算、无约束和约束平差,并进行误差分析,从而论述GPS技术可以对公路控制网进行高精度平面控制,最后对公路控制网中的技术要点进行总结并提出建议。
GPS has advantages in network constructions such as high precision,flexible selection of control points,short observation time and high work efficiency. Take the highway control network of the 104 National Highway Pusi Interchange to the Nanjing Second Bridge Section(the western section of Puyi Highway) as an example. Implement a first-level static control measurement on the road section and second-order control measurement on the bridge section,then carry out baseline,unconstrained and constraint adjustment solution of two grades of highway control networks. Lastly,make error analysis on it to demonstrate the high-precision plane control of GPS technology on highway control network. Finally,summarize the technical points in the road control network and make recommendations.
作者
钱承军
Qian Chengjun(Nanjing Institute of Surveying,Mapping&Geotechnical Investigation,Co.,Ltd,Nanjing 210019,China)
出处
《城市勘测》
2019年第6期85-88,共4页
Urban Geotechnical Investigation & Surveying
关键词
静态控制测量
公路控制网
平差
误差分析
static control measurement
highway control network
adjustment
error analysis
