孔隙气体对断裂电磁辐射的影响及其机理

含瓦斯煤变形破坏时,孔隙气体是对电磁辐射产生影响的最重要因素之一。基于孔隙气体对电磁辐射影响的实验结果,运用分子动力学理论和方法建立了气体吸附动态平衡方程,详尽地叙述了孔隙气体与新形成的壁面间的相互作用,在此基础上建立了孔隙气体对电磁辐射影响的唯象模型,讨论了其微观机制。结果表明,孔隙中的自由瓦斯气体对电磁辐射没有明显的影响,而吸附瓦斯气体对电磁辐射有非常明显的影响。在临界瓦斯压力之前,吸附量越多,电磁辐射越弱;临界压力之后,吸附量越多,电磁辐射越强。

Influence of porous gas on ruptured electromagnetic radiation and its mechanism

While coal or rock is in the process of rupture and deformation, porous gas is the one of the most important factors influencing electromagnetic radiation thus induced. Based on the experimental results and the theory and method of molecular movement, this paper set up the dynamic model of gas adsorption and discussed the interactivity between porous gas and newly-formed walls in details. Finally, a phenomenal model of porous gas influence on electromagnetic radiation was established and its mechanism was discussed according to the results. Experimental results show that the free gas has no obvious influence on electromagnetic radiation, but gas in adsorbed status does. Prior to the critical pressure of gas, the more the value of adsorption is,the more weakly the electromagnetic radiation is produced; after the critical pressure of gas, the more strongly the electromagnetic radiation is produced.