摘要
滨海新区地面沉降进入微沉阶段,滨海新区水准测量受长距离水准测量累积误差影响,地面沉降测量精度约为8.5—11 mm,无法满足滨海新区控沉监测要求。本文设计并实现了滨海新区地面沉降CORS监测系统,通过GNSS技术精确测量滨海新区地面沉降CORS站的大地高,为滨海新区地面沉降监测提供连续可靠的地面沉降监测基准。实测数据实验结果表明,以滨海新区地面沉降监测CORS站为基准,滨海新区地面沉降水准测量沉降监测精度可提高到1.6 mm。
The ground subsidence of Binhai New Area has entered the stage of divergence. The leveling measurement of Binhai New Area is affected by the cumulative error of long-distance leveling measurement. The accuracy of ground subsidence measurement is about8.5—11 mm,which cannot meet the monitoring requirements of Binhai New Area. This paper designs and implements the coastal subsidence CORS monitoring system of Binhai New Area. It accurately measures the ellipsoidal height of the ground subsidence of CORS stations in Binhai New Area through GNSS technology,and provides a continuous and reliable ground subsidence monitoring benchmark for the ground subsidence monitoring in Binhai New Area. The experimental results of the leveling data show that the monitoring accuracy of the ground subsidence in Binhai New Area can be improved to 1.6 mm based on the ground subsidence monitoring CORS stations in Binhai New Area.
作者
雍娟
闫伟
YONG Juan;YAN Wei(Research Center of Urban Planing and Development of Yuzhong District,Chongqing 400010,China;Tianjin Institute of Surveying and Mapping,Tianjin 300381,China)
出处
《测绘与空间地理信息》
2020年第9期178-180,共3页
Geomatics & Spatial Information Technology
作者简介
雍娟(1989-),女,四川泸州人,工程师,硕士,2014年毕业于重庆大学城市规划专业,主要从事地块设计研究与专项规划设计及相关研究工作;通讯作者:闫伟(1982-),男,河北唐山人,高级工程师,博士,2012年毕业于中国科学院研究生院大地测量学与测量工程专业,主要从事GNSS精密定位算法、软件及应用研究工作。
