含瓦斯煤岩突出的流动特性及其分析

he law of Coal or rock fracture network formation and solid-gas flow characteristics in the process of coal and gas outburst are analyzed. Rheological fracture characteristics of coal or rock and the “corrosion-damage” action of porous gas which might change the property and behavior of coal are discussed. The paper shows that each factor might play different roles in different stages of outburst. Based on the transformation of energy, the relationship between the rheological energy dissipation process of coal or rock containing gas and the energy transformation is analyzed. at the same time, the relationship between the energy dissipation and solid-gas flow process is explained. Rheological analysis of Solid-Gas coupling model of Coal and Rock showed that outburst is a dynamic evolution process under coupling interactive effects of multi-factors and time-related. At this process, Coal is broken into small pieces and transported rapidly, then, throw to mining space. Further research on flow characteristics of gas-filled coal during coal and gas outburst has important directive significance in the prediction and prevention of dynamical catastrophes of coal or rock.