The Tectonic Control On Gas Occurrence And The Gas Forecast In Panchengling Coal Mine

The gas is a special gas geological body which is formed in the geological history.Its generation, migration, storage and enrich are controlled by a variety of geologicalfactors. It is important significance for recognizing the preservative law of gas andgeological control mechanism of gas occurrence of China that research coal minemethane occurrence geological structure control law.Combining with the gas geology parameters,using the plate tectonics theory andregional geological evolution theory,from regional geological structural evolution andevolution of tectonic stress field, analysis step by step Panchengling coal mine gasoccurrence geological structure control law, then revealed the mine gas geological law,forecast outstanding risk, target gas forecast and governance。Panchengling coal mine, in the northern end of Qinshui Basin, have beencontrolled by EW strike structures and NNE strike structures, compositestructural-trending faults, present tectonic stress field is NNE strike structures trendingfaults, and NW strike structures, NWW strike structures trending faults showedextrusion and transpression, Based on the analysis of gas occurrence regionalstructural control based on the features of mine gas deposit, tectonic control, reveals themine gas geology rule, the area of coal and gas outburst danger prediction, and thecutting face outburst risk undertook preliminary judgment.