瓦斯放散初速度影响因素研究进展

Research Progress and Analysis on Influence Factors of Initial Velocity of Gas Emission

瓦斯放散初速度作为预测煤与瓦斯突出的重要指标之一,研究其影响因素具有重要意义。通过分析影响瓦斯放散初速度的主要因素:变质程度、充气压力、温度、孔隙特征、粒径、水分、外加声场和电场等,总结各个因素条件下的研究进展和不足,把各个影响因素归纳为瓦斯含量、瓦斯压力、通道性质3个方面。分析提出了瓦斯放散初速度进一步探究需要解决的问题,总结出瓦斯放散初速度多因素耦合作用的研究为主要发展方向。

As one of the important indexes to predict coal and gas outburst,it is of great significance to study the influence factors of the initial velocity of gas emission.Based on the analysis of the main factors affecting the initial velocity of gas emission such as metamorphic degree,inflation pressure,temperature,pore characteristics,particle size,water content,external sound field and electric field,the research progress and shortcomings of each factor condition are pointed out,and each influence factor is summarized as three aspects:gas content,gas pressure and pore properties.The problems about the initial velocity of gas emission that need to be solved are analyzed and proposed,and it is concluded that the research on the coupling effect of multi-factor of the initial velocity of gas emission is the main development direction.