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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。
In view of the difficulty of accurately measuring the gas pressure when the gas pressure measurement method commonly used in the present case encounters large water-bearing coal rock formations, the gas pressure measurement method for water discharge is proposed. Through a series of successful tests and applications in several locations in Qinan coal mine, a set of accurate methods for determining the gas pressure in large boreholes has been summarized.