System and method for monitoring deformation of dam slope

摘要

The invention provides a dam slope deformation monitoring system and method. According to the monitoring system, an unmanned aerial vehicle photogrammetry system is utilized to monitor dams in the whole reservoir area, and an encrypted monitoring area with large deformation quantity and large digital elevation difference (a steep slope) is determined; in the encrypted monitoring area, a ground-based interferometric radar measurement system is utilized to determine a first level key area with larger deformation quantity; in the first level key area, a ground-based three-dimensional laser radarsystem is adopted to select a second level key area with larger deformation quantity, a global navigation satellite system (GNSS) is adopted in the second level key area to determine a key monitoringparticle with high deformation speed, and a micro core pile is utilized to monitor and forewarn the collapse process of the key monitoring particle area. According to the dam slope deformation monitoring system and method, precise positioning of the collapse position of the dams in the whole reservoir area and integrated monitoring and early warning of space, air and ground are achieved through time seamless monitoring from slow to fast to the instant of collapse and full coverage monitoring from large area to small area to particle and from two-dimensional to three-dimensional space variation.