【摘要】 针对高瓦斯工作面上隅角瓦斯大,严重影响安全,制约生产的问题,采用直接抽放工作面上隅角瓦斯及顶板抽放法取得成功。实践证明顶板抽放法是解决高瓦斯采面瓦斯问题非常有效和更为安全的方法。更多还原

【Abstract】 Aim at the problem of top corner gas big at work face,seriously influences safety and restrains production,the method of direct drawing top corner gas has been proved sucessful.Practice showed that the top drawing method safe and effcetive.更多还原