综放工作面风量及采空区漏风定量检测

通过对中煤塔山煤矿30509综放工作面采空区漏风及有害气体分析的研究，总结了通过定量连续释放SF₆示踪气体，来检测工作面风量与采空区漏风的方法，测定了沿工作面采空区的漏风分布及漏风流线的深度。采用定时测量法，确定了30509工作面随工作面不断推进，与对应地表发生了导通现象；采用定量测量法，确定了内部漏风量和外部漏风量较大，对综采工作面采空区自然发火存在较大风险，同时提出了防范措施，为减少综放工作面采空区漏风、防止自然发火的发生提供了参考。

Quantitative detection of air volume and goaf air leakage in fully-mechanized caving face

It was based on the analysis of air leakage and harmful gas in the goaf of 30509 fully-mechanized caving face in Tashan Coal Mine of China Coal Resources Development Group Co.，Ltd.，the method of detecting the air volume and air leakage in the goaf by quantitative and continuous release of SF₆ tracer gas was summarized，it was measured the air leakage distribution and the depth of the air leakage streamline along the goaf of the working face.Using the timing measurement method，it was determined that the 30509 working face was continuously advancing with the working face，and conduction occured with the corresponding surface；the quantitative measurement method was used to determine that the internal air leakage and external air leakage were relatively large.There was a greater risk of spontaneous fire，and at the same time，preventive measures had been put forward to reduce air leakage in the goaf of fully-mechanized caving face and provided a reference for preventing spontaneous fire.