Application Research of Automated Monitoring Techniques in Loess Areas
High slope stability is a key issue affecting the operational safety of highways in loess areas.Combined with the Yanhuang Expressway project,this paper adopts the GNSS deformation monitoring technology to build a set of fully automated monitoring and early warning system for high slopes in loess areas by comprehensively analysing the real-time monitoring data such as horizontal and vertical displacements of 23 representative monitoring points,and establishing an early-warning information data model by combining the cumulative displacement of the ground surface and the macro-expression of the rate of displacement,etc.,so as to realise real-time analysis and early-warning judgment of the monitoring data for high slopes to satisfy the needs of the loess plateau region.Real-time analysis and early-warning discrimination of high slope monitoring data is achieved,which meets the demand of all-weather automatic monitoring and provides reliable data support and technical guarantee for the safe operation of highways.