基于精密单点定位技术的滑坡变形监测

Landslide deformation monitoring based on precise single-point positioning technology

针对我国滑坡所造成的灾害,文中以我国西南地区的某滑坡为监测实例,基于GPS三频精密单点定位技术,并从精密单点定位精度、收敛时间以及滑坡三维变形情况分析了精密单点定位在滑坡变形监测中的可行性与可靠性。经研究发现,在滑坡环境下,GPS三频精密单点定位在监测150 min之后开始收敛,精度可以达到厘米级,完全收敛之后的数据能精确测定滑坡的三维变形情况,可以为滑坡灾害的预防提供可靠的数据支撑。

Aiming at the disaster caused by landslides in China,in this paper,taking a landslide in southwest China as an example of monitoring,based on GPS tri-frequency precise single-point positioning technology,the feasibility and the reliability of the precision single point positioning in landslide deformation monitoring from the precise single-point positioning accuracy,the convergence time,and three-dimensional deformation of the landslide.After research found that the GPS tri-frequency precise single-point positioning began to converge after monitoring for 150 minutes in the landslide environment.Accuracy could reach the centimeter level.Data could accurately determine the three-dimensional deformation of the landslide after full convergence,which could provide reliable data support for the prevention of the landslide disaster.