Rock burst early warning device and use method

• Main Authors: LIU WENJU, WEI JIONG, LI JIANZHONG, WANG XIAOQING, LU ZHIGUO, YANG LEI, HARA GUIYANG, LOU JINFU, PENG XIANGYUAN, CAO SHUWEN, GAO FUQIANG, DONG SHUANGYONG
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2024
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MINING; PHYSICS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; TESTING

The invention relates to the technical field of coal mining, and provides a rockburst early warning device and a using method, and the rockburst early warning device comprises an explosion bearing device which comprises an explosion bearing box and an ejection pressure sensor; the telescopic jacking column is arranged between the sample and the tunnel top plate in a manner that the telescopic length is adjustable; the hydraulic loading assembly and the telescopic jacking column are arranged at an interval, and a clamping space for a sample and an explosion bearing device is formed between the hydraulic loading assembly and the telescopic jacking column; the loading pressure sensor is used for detecting the stress borne by the sample; and a monitoring alarm. According to the rockburst early warning device provided by the invention, by simulating the concentrated stress state of the surrounding rock of the tunnel, using the in-situ stress of the tunnel as the loading stress, and monitoring the loading pressure