I. Mine construction monitoring (1) Monitoring of relative displacement of surrounding rock surface 1. Convergence measurement: It measures the relative deformation and deformation law between two points on the surface of the roadway. 2. Conductor measurement and elevation measurement: measure the absolute displacement of the surface of the surrounding rock. (2) Deep surrounding rock displacement monitoring 1. Multi-point displacement meter measurement 2. Separator: monitor relative displacement. (D) Loose circle monitoring: using ultrasonic wave speed and electromagnetic radar. Second, open pit slope monitoring (1) Basic requirements for monitoring: Class I monitoring is a comprehensive, regular inspection of the overall slope. Level II monitoring is the monitoring of unstable slopes. Vibration monitoring: The rock's frequency and amplitude of sound emission will be significantly increased before rupture to predict the risk of landslide. Automatic Head Rotation Template Sewing Machine Intelligent Computerized Sewing Machine,Equipment For Making Mantle,Equipment For Making Robe Sichuan Kisae sewing machine Co.,Ltd. , https://www.kisaesew.com