瓦斯放散特性与井下瓦斯自然解吸量的相关性研究

Study on Correlation between Gas Emission Characteristics and Natural Gas Desorption in Coal Mine Underground

瓦斯放散初速度是衡量煤层瓦斯初始释放瓦斯的能力,也是煤与瓦斯突出的主要评价指标之一。为解决由于实验室测定瓦斯放散初速度值的延迟性而导致瓦斯灾害评估及瓦斯治理措施制定的滞后性,通过研究探索日常井下瓦斯含量测定时,井下30 min瓦斯自然解吸量与瓦斯放散初速度之间的相互关系,为日常快速预测掘进工作面前方煤体瓦斯放散特性提供依据及方法借鉴,从而确保掘进工作面的安全高效掘进。

The initial speed of methane diffusion is the ability to measure initial released gas in coal seam,and it is also one of the main evaluation indicators for coal and gas outburst.In order to solve the delay of the initial speed of methane diffusion value of the in the laboratory, it will be caused that the gas disaster assessment and the gas control measures are delayed.By studying the correlation between the amount of natural gas mission in the initial 30 minutes and the nitial speed of methane diffusion in gas content determination of daily in coal,it can provide a rapid prediction method for the coal gas dispersion characteristics in front of the heading face. The research results can ensure the safe and efficient driving of the heading face.