通过对日本煤矿煤与瓦斯突出特点的观察,作者以应力分析结果和一些测试结果为依据,研究了突出的机理。作者发现突出可解释为岩石应力和瓦斯压力综合作用使煤体发生机械破坏,并提出了改善预防措施的根据。 By observing the characteristics of coal and gas outburst in Japan coal mines, the author has studied the outstanding mechanism based on the stress analysis results and some test results. The authors found that the prominence can be explained by the combined effect of rock stress and gas pressure that causes mechanical damage to the coal and provides a basis for improving the precautionary measures.