摘要
GPS位移监测技术已被广泛用于滑坡地质灾害监测预警工作中。三峡库区典型滑坡以GPS监测数据、野外踏勘和深部位移等资料为基础,对GPS监测影响进行研究,结果表明:监测点尤其是基准点被遮挡,采集到的数据存在严重误差,对滑坡变形分析影响巨大。
GPS deformation monitoring technology has been widely applied to landslide monitoring and early warning.After the monitoring system was established,the precision would be seriously affected when the monitoring stations are covered by trees or buildings over time.Take typical landslides in Three Gorges Area as an example,the factors affecting the precision during GPS landslide monitoring is analyzed based on monitoring data of GPS,field reconnaissance and deep displacement data.The result shows that when the monitoring stations,especially for the datum stations,are covered,the data gathered will be unreliable,which will serious affect the data processing and analysis on the deformation trend of the landslide.In order to ensure the normal operation of the monitoring system on the whole,the problems identified must be solved timely.
出处
《城市地质》
2013年第2期9-12,共4页
Urban Geology
基金
陇东地区地质灾害详细调查(1212010814012)
关键词
GPS技术
滑坡监测
野外环境
监测精度
GPS technology
Landslide monitoring
Filed environment
Monitoring precision.