Application Analysis of Active Seismic Wave CT Inversion Technology to Predict Rock Burst Risk
In order to prevent the occurrence of rock burst accidents,based on PASAT-M CT micro-seismic detection system,active CT inversion technology was used to detect the unmined area of 309 work-ing face in Tingnan Coal Mine.According to the detection results,combined with the impact risk assessment model,the prediction of the impact risk area of the working face is carried out to guide the subsequent pres-sure relief and anti-impact work.The coal strata in the detection area are generally in the middle impact risk level.The impact risk assessment model considering the seismic wave velocity anomaly coefficient and the seismic wave velocity gradient coefficient is used to predict,and the results are basically consistent with the actual situation.The combination of active seismic wave CT inversion technology and impact risk assessment model can effectively detect the potential impact risk area in the mining area and provide accurate guidance for the next stage of pressure relief and anti-impact measures.
rock burstseismic waverisk assessment of rock burstCT inversion technology
万方数据
维普
