The Application of IBIS-L Remote Monitoring System for Micro Deformation of Terrain in Dam Safety Monitoring

IBIS-L is an advanced remote monitoring system based on microwave interferometer, which integrates the interferometric survey, stepped frequency- continuous wave and synthetic aperture radar. IBIS-L can do high precise, large range, Omni-directional, real-time and remote displacement monitoring. The system can be widely applied in the monitoring of small-displacement changes in the dam, mountain, slope, surface, buildings and bridges[1]. The monitoring technology can get the displacement changes of every part, analyze the deformation mechanism and characteristics and forecast the disaster of dangerous region timely. So it can provide a reliable basis for disaster prevention, greatly reducing or avoiding the loss on people's life and property. We introduce the external deformation monitoring process and outcome of IBIS-L in a hydropower station dam and provide a useful reference for the application of IBIS-L to the similar dam.