绿水洞煤矿煤层(成)气赋存与地质条件的关系

THE RELATIONSHIP BETWEEN COALBED GAS OCCURRENCE AND GEOLOGICAL CHARACTERISTICS IN LUSHUIDONG MINE

摘要: 依据绿水洞矿井地质构造和煤层构造变形特征,对该矿煤层(成)气赋存运移规律进行了系统的分析,就该矿生产中煤层(成)气涌出及可能产生的动力现象进行了地质评价,认为在矿井深部仍存在沿岩层裂隙和溶洞发生煤层(成)气涌出的可能,田湾向斜东翼为全井田煤层(成)气突出危险程度最高的区域。

Abstract: According to the in-situ observation and study of the mine geological structure and tectonic deformation of coal seam in Lushuidong mine,the occurrence and migration laws of coalbed gas in this mine are analyzed systematically,and the geological evaluation to the coalbed gas emission and possibility of dynamic phenomenon taking place in mine production is carried out.It is considered that the possibility of coalbed gas emission from cracks and cave of rockmass in depth of mine is stll existed,and the eastern flank of Tianwan syncline is the area with the highest hazard in burst of coalbed gas in whole mine field.