【摘要】 为研究Y型通风采煤工作面不同防漏风形式下的风流场，以张集煤矿1613A工作面为工程背景，通过Fluent数值模拟说明了沿空留巷段在不防漏风、侧面防漏风、侧面顶板共同防漏风3种措施下，留巷侧面与顶板的漏风情况，并探究风流场的分布规律与采空区“三带”分布规律。模拟结果表明，在无防漏风措施时，留巷段前80 m漏风严重；留巷侧面的防漏风措施可以大大减小漏风速度，并阻止留巷位置的气流从水平方向渗流向采空区，但气流仍能通过顶板向采空区渗流；在留巷侧面与顶板共同防漏风情况下，留巷无漏风现象，但在进风巷和工作面交界处会形成新的漏风通道，使工作面附近采空区内漏风增大。研究成果为张集矿制定沿空留巷防漏风措施、提高风流效率提供了科学依据。更多还原

【Abstract】 In order to study the air flow field of the Y-type ventilation coal mining face under different air leakage prevention forms, taking the 1613 A working face of Zhangji Coal Mine as the engineering background, the numerical simulation of the gob-side entry retaining section showed that the gob-side entry retaining section had no air leakage prevention, side leakage prevention air, and side air leakage.Under the three measures to prevent air leakage in the roof, the air leakage on the side of the roadway and the roof was investigated, and the distribution law of the wind flow field and the "Three Zones" distribution law of the goaf were explored.The simulation results showed that without air leakage prevention measures, the air leakage was serious in the first 80 m of the entry retention section; the air leakage prevention measures on the side of the entry retention could greatly reduce the air leakage speed and prevent the airflow at the entry retention position from seepage from the horizontal direction to the goaf.However, the airflow could still seep into the goaf through the roof; under the condition that the side of the entry retaining and the roof jointly prevent air leakage, there was no air leakage in the entry, but a new air leakage channel would be formed at the junction of the air inlet and the working face.The air leakage in the goaf increased.The research results provided a scientific basis for Zhangji Mine to formulate air leakage prevention measures for gob-side entry retention and to improve air flow efficiency.更多还原