煤和瓦斯突出是煤矿井下的一种动力现象。发生突出时,常常在数十秒钟内,喷出上万立米瓦斯和数以百吨计的煤炭,而且突出的煤炭以小于自然安息角的状态堆积在数百米的巷道中。这一现象,说明了瓦斯是突出过程中的主要能源。为了阐述瓦斯在突出过程中的作用,国内外许多煤矿瓦斯工作者,都对煤层瓦斯的能量做了大量的研究,有的 Coal and gas outburst is a dynamic phenomenon in coal mines. In the event of prominence, tens of thousands of meters of gas and hundreds of tons of coal are often discharged in tens of seconds, and prominent coal accumulates in hundreds of meters of roadway at less than natural rest. This phenomenon shows that gas is the main energy source in the process of salience. In order to explain the role of gas in the process of saling out, many domestic and overseas coal mine gas workers have done a lot of research on the energy of coal seam gas. Some