【摘要】 针对目前通常采用的瓦斯压力测定法遇到含水量大煤岩层时难以精确测定瓦斯压力这一难题,提出了放水测瓦斯压力方法。通过在祁南煤矿多个地点的成功试验与应用,总结出了一套精确测定含水量大钻孔瓦斯压力的方法。更多还原

【Abstract】 It is usually difficult to accurately determine the gas pressure when we encountered the coal-rocks layer with large water content.A method of measuring gas pressure is proposed.By the successful experiment and appli cation in many locations in Qinan Coal Mine,we summed up a set of precise methods in determining the gas pressure in large water content drilling.更多还原