摘要
为了研究GPS RTK技术用于滑坡动态变形监测的精度和可靠性,本文结合某类滑坡的大型物理模型试验,在滑坡体上布设了若干监测点,并用GPS RTK技术、全站仪三维测量技术和GPS单历元定位技术实时跟踪监测了该滑坡在自然状态下从稳定到产生破坏的全部过程。通过对监测数据的处理和分析,获得了RTK技术用于滑坡变形监测的可靠性和精度等技术参数,即在基准站和流动站同步观测到的卫星数在7颗以上且RTK系统的数据链能够正常工作的情况下,RTK测量的平面和高程精度就能分别控制在15mm和20mm以内。研究结果表明,RTK技术在一定条件下完全可用于滑坡灾害的动态实时变形监测。
This paper presents a study on the precision and reliability of landslide deformation monitoring with GPS-RTK technology.Some monitoring points were set on the landslide body.The GPS RTK technology,the three-dimension surveying technology by total station and the GPS single epoch positioning technology were used to monitor the deformation process from stable state to the failure of the landslide in real time.The results are further combined with large physical model experiment of one kind of landslides.The processing and analysis on the monitored data of the landslide have resulted in the technique parameters about reliability and precision of landslide deformation monitoring with the RTK technology.That is,the precision of plane and height from RTK can be controlled within 15mm and 20mm respectively,under the conditions that there are more than seven satellites observed synchronous and the data link can work normally.The experimental results indicate that the GPS-RTK technology can be used to monitor the dynamic and real time deformation of this type of landslides when the observation conditions are favorable.
出处
《工程地质学报》
CSCD
北大核心
2011年第2期193-198,共6页
Journal of Engineering Geology
基金
国家自然科学基金项目(40902081)
国土资源大调查项目(1212010914015)
西部交通建设科技项目(200531881203)
关键词
GPSRTK
滑坡
动态
实时
变形监测
GPS
RTK
Landslide
Dynamic
Real time
Deformation monitoring
作者简介
王利，主要从事GPS数据处理和变形监测等方面的教学与科研工作．Email：wangli@chd．edu．cn
