应用能位测定法和SF_6示踪技术检测下分层工作面顶板漏风状况

Air Leakage Measurement of Roof under Lower Working Surface by Energy Level and SF_6 Tracer Test

利用示踪技术对下分层工作面顶板漏风进行了现场检测,研究了顶板漏风状况。通过能位测定研究了顶板存在的可能漏风路径,在此基础上,利用SF6示踪技术确定了顶板漏风状况。研究发现:试验下分层顶板漏风情况,找出了漏风通道,最大漏风点在实际断层附近,并计算出了漏风方向。

On the basis of using the tracer gas to have a filed test on the air leakage in the gob of the lower stratified working face, study the air leakage condition of the roof and the leakage path of the roof by means of energy level test have determined the air leakage condition of the roof by SF6 tracer technique, according to which have found out the situation and passageway of the air leakage in the stratified roof, and calculated the air leakage wind diretion.