METHOD FOR ESTIMATION OF OUTBURST HAZARD OF COAL SEAMS

摘要

The invention relates to mining and mb used in developing layers that are prone to sudden outbursts of coal and gas. The purpose of the invention - increasing the reliability and reducing the complexity evaluation outburst coal seams. Exploration wells drilled is determined burial depth, the physicochemical characteristics of the coal seam, the depth is set by detection of sudden emission measured apparent electrical resistance (ES) and radioactivity (P) species in the range of 20-30 meters from the coal seam. After 0.2- 0.4 m cut wells depending on variability rock properties, determined correlation coefficients (CC) between ES and F an apparent roof rock, soil, and the average value CC for lithotypes of the investigated area is set ratio K apparent K ES and P to the average value for QC lithotypes of the study area and when the ratio QC .ES and apparent. P to the average value QA is less than one coal seam portion referred to as outburst.