变形Ｙ型通风方式防治瓦斯积聚的试验

通过在平顶山煤业集团责任有限公司十矿已２２１６０采面的变形Ｙ型通风方式试验，探讨了采面通风方式对采漏风和采面瓦斯涌出的影响，发现变形Ｙ型通风方式通过降低机巷进风量可以减少回采工作面的采空区漏风，降低采空区的瓦斯涌出量，同时，由于中间巷的掺新风流对回采工作面上段及上隅角瓦期积聚带的冲洗，大大降低了回采工作面上半段沿倾向的瓦斯浓度递增梯度和上隅角瓦斯浓度，能有效地防止高瓦斯综采工作面的瓦斯积聚，为高瓦斯综采工作面的高产高效提供了可靠保证。

The Experiment of Prevention Accumulated Methane by Means of Abnormal Y Pattern Ventilation Method

In this paper, according to the experiment of abnormal Y pattern ventilation method in Coal Face 22160, Mine 10, Pingdingshan Coal Group Ltd. Co. , it is discussed that the effect of ventilation method on fugitive air and gas emission. It is discovered that Y pattern ventilation method can not only decrease air break in mine goaf by means of declining intake air in drawing road, and alleviate gas emission in gob area, but also wash the accumulated methane in upper corner by means of fresh air in middle road, and reduce the gradient of gas concentration greatly in direction of dip in upper half part of mining face and the gas concentration in upper corner. That can effectively prevent gas accumulation in mechanized high gas faces and provide reliable guarantee for high production and high effectiveness in mechanized high gas faces.