Rock burst roadway safety monitoring method and device

• Main Authors: HAO DENGYUN, WU YONGZHENG, CHU XIAOWEI, FU YUKAI, WU ZHIGANG
• Format: Patent
• Language: Chinese; English
• Published: 22.04.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MINING; PHYSICS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; TESTING

The invention provides a rock burst roadway safety monitoring method and device, and the method comprises the steps: comparing the vibration speed, strain and stress of roadway surrounding rock in the rock burst generation process with the critical value of roadway surrounding rock instability, and determining the stability of the roadway surrounding rock; comparing the monitored stress and deformation of a first supporting structure located on the surface layer of the roadway in the rock burst occurrence process with the critical value of instability of the first supporting structure, and determining the stability of the first supporting structure; comparing the monitored stress and deformation of a second supporting structure located in the inner space of the roadway in the rock burst occurrence process with the critical value of instability of the second supporting structure, and determining the stability of the second supporting structure; and determining a roadway safety level according to the stability