在抽放瓦斯和防止煤与瓦斯突出的实践中积极影响煤层的方法正得到越来越广泛的应用。已知的方法有:影响矿体性质和状态的液体法、物理—化学方法、微生物方法、机械方法等。几种方法的组合则称之为综合影响法。为提高瓦斯抽放效果,特别是对于卡拉甘达煤田区内瓦斯涌出量很大的矿井,近 Methods of actively affecting coal seams in the draining of gas and prevention of coal and gas outburst are gaining more and more widespread use. Known methods are: liquid methods, physico-chemical methods, microbiological methods, mechanical methods, etc. that affect the nature and state of ore bodies. The combination of several methods is called the comprehensive impact of the law. In order to improve the gas drainage effect, especially for the mine in Caraganda coalfield gas emission is very large, nearly