The paper analyzes the reasons of gas occurred coal mining in No. 1606 face in Pinggou mine. It describes the working principles of high roof drainage technology. The success of this technique in work face No. 1606 in coal winning process can effectively control the gas and ensure safe and effective production in face.%文章分析了平沟矿1606采煤工作面采煤过程中瓦斯产生的原因,阐述了顶板高位抽放技术的工作原理。该技术成功的对1606工作面采煤过程中产生的瓦斯进行了有效地治理,保证了采煤工作面的安全、稳定、高效的生产。
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