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俄罗斯煤炭和煤炭化学研究院研究出一种控制采区瓦斯涌出的新方法。这种新方法是通过邻近层的采空区排放沼气空气混合体。其方法的内容是使井下的通风系统形成下列情况:使过去采过的邻近层采空区与采区形成一个瓦斯压力差,然后用扇风机使沼气空气混合体通过已形成的空洞和裂隙向
Russia’s Coal and Coal Chemistry Research Institute developed a new method to control gas emission from a mining area. This new method is to discharge the biogas mixture through the gob of the adjacent layer. The method is to make the ventilation system in the underground form the following situations: a gas pressure difference is formed between the adjacent goaf and the mining area adopted in the past, and then the fan air blower is used to make the biogas-air mixture pass through the formed cavity and crack