Study on Gas Occurrence Laws of Libi Mine in Qinshui Coal Field

Using the control theory of regional geological tectonic evolution and gas occurrence, the paper studies the evolution characteristics of regional tectonic and gas geological law in Libi Mine. Through analyzing the geological prospecting, detailed geological survey, coal bed maethane exploitation and other gas geology data, the basic laws of coal seams which are controlled by regional structure and the lithology of roof and floor were summarized.