一、引言随着矿井开采深度增大及大功率采煤机的投入使用,回采产量不断提高,采煤工作面瓦斯绝对涌出量也不断增大,尤其是在地质构造复杂瓦斯带采煤工作面,采煤机割煤时采煤工作面瓦斯经常超限。鸡西矿业集团杏花煤矿在采煤工作面采煤机割煤瓦斯超限治理上,尝试采用超前钻孔释放瓦斯措施,避免采煤机割煤时采煤工作面瓦斯超限。 I. INTRODUCTION With the increase of mining depth and the putting into operation of high-power shearer, the output of recovery has been continuously increased, and the absolute emission of gas in coal mining face has also been increasing constantly, especially in coal mining with complex geological structure of gas zone Surface, coal mining face coal mining often over-limit. Jixi Mining Group Xinghua coal mine coal mining face coal overrun control, try to use advanced drilling to release gas measures to avoid coal mining coal mining face when the gas overrun.