Safe mine pressure monitoring method and device for roof

The invention discloses a safe mine pressure monitoring method and device for a roof and relates to the technical field of safe mine pressure monitoring. The method is used for carrying out simultaneous monitoring on anchoring force, the stability of deep wall rocks of the roof and the surface deflection at a same fracture surface of a roadway or a chamber. The device comprises a roof abscission layer monitoring device, an anchoring force monitoring device, a deep displacement monitoring device and roadway surface displacement monitoring devices, wherein each device is connected with a ground control system through a transmission system, and the monitoring devices are provided with signal acquisition components to realize simultaneous online monitoring and lag monitoring. According to the safe mine pressure monitoring method and device for the roof, the comprehensive comparative analysis is carried out on the anchoring force, the abscission volume and the deflection numeral value of the roof and the composite multi-index comparison is utilized to warn and predict the safety of the roof, strong guarantees are provided for the safe production of underground projects such as coal mines and metal mines.