浅埋深近距离煤层工作面漏风测定及防治技术

Measurement and prevention technology of air leakage in shallow buried near coal seam face

石圪台煤矿由于属于浅埋深近距离煤层群开采,同时受周边小煤矿及上覆采空区影响,漏风条件极为复杂,下分层工作面回采时存在复杂的漏风和内因火灾隐患,严重威胁矿井安全生产。基于示踪气体技术,对31201工作面进行了漏风通道测定,掌握了该工作面复杂的交叉漏风通道及漏风规律,为制定针对性的综合防治措施提供了科学的依据,进而确保了工作面的安全回采。

Shigetai Coal Mine belongs to short distance coal seam group mining with shallow buried depth,and is affected by the surrounding small coal mines and the overlying goaf.The air leakage conditions are extremely complex.There are complex air leakage and internal fire hazards in the mining of the lower layered working face,which seriously threatens the mine safety production.Based on tracer gas technology,this paper measured the air leakage channel of 31201 working face,mastered the complex cross air leakage channel and air leakage law of the working face,put forward a scientific basis for formulating targeted comprehensive prevention and control measures,and then ensured the safe mining of the working face.