A method for monitoring and early warning the rock burst risk of a coal seam bifurcation merging area

• Main Authors: WANG JIANJUAN, LIU GUANGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; PHYSICS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a method for monitoring and early warning the rock burst risk of a bifurcation merging area of a coal seam, which comprises the following steps of: normalizing an impact tendency index, and comprehensively processing the impact tendency index and a shear stress comprehensive index obtained by a test to obtain a corresponding impact tendency comprehensive judgment index soas to judge the rock burst risk. By adopting the method for monitoring and early warning the rock burst risk of the bifurcation merging area of the coal seam, the real-time monitoring and early warning of the rock burst risk of the target area can be realized, the operation is simple and convenient, the cost is lower, the precision is improved, and the application range is wider. 本发明涉及一种监测预警煤层分叉合并区冲击地压危险性的方法，其中包括将冲击倾向性指标进行归一化处理，并与试验得到的剪应力综合指标进行综合处理，得到相应的冲击倾向性综合判定指标，并以此判定冲击地压危险性。采用本发明的监测预警煤层分叉合并区冲击地压危险性的方法，能实现目标区域冲击危险性的实时监测和预警，操作简便，费用较低，精度提高，具有更广泛的应用范围。