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根据钻屑瓦斯解吸量与解吸时间的关系原理和钻屑瓦斯解吸特征指标K1值测定原理,利用瓦斯损失量的计算公式,建立瓦斯含量与钻屑瓦斯解吸指标K1值的函数关系公式。通过实测数据对公式加以优化,最终建立瓦斯含量与钻屑瓦斯解吸指标K1值的数学关系模型,发现K1与解吸时间的函数和瓦斯含量成对数关系。利用模型能实现工作面瓦斯含量的快速测定。
According to the principle of relationship between desorption time and desorption time of drill-chip gas and K1 value of gas desorption characteristics of drilling-gas, the formula of gas consumption as a function of K1 value of gas-desorption index was established by using the calculation formula of gas loss. Based on the measured data, the formula is optimized. Finally, a mathematic relation model between gas content and K1 value of methane gas desorption index is established. The relationship between K1 and desorption time and the gas content is logarithmically found. Using the model can realize the quick determination of gas content in working face.