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当前,在防止煤与瓦斯突出及提高煤层瓦斯抽出率的研究工作中,用水湿润煤体、用水作为动力松动破裂煤体以及用水作为介质物化处理煤体的措施,即所谓水力化措施得到了较为广泛的试验及使用。尽管水力化措施的特点都是用“水”作为处理煤层瓦斯的手段,但大量试验研究工作表明,在水力化措施的各类具体方法中,由于水对瓦斯煤层的作用机理不同,即煤层遇水后,煤的瓦斯解吸扩散性、瓦斯流动渗透性、煤的物理力学性和煤层上的应力变化情况的不同,处理煤层瓦斯的效果也不同。
At present, in the prevention of coal and gas outburst and improve the coal seam gas extraction rate of the research work, the water wetting coal, water as a dynamic loosening and cracking of coal and water as the material of the physical treatment of coal measures, the so-called hydraulic measures have been more Extensive testing and use. Although hydraulics are characterized by “water” as a means of treating coalbed gas, a large number of experimental studies have shown that in various concrete methods of hydraulics measures, the mechanism of action of water on coalbed methane is different, that is, the coal seam Water, coal gas desorption and diffusivity, gas flow permeability, the physical and mechanical properties of coal and coal seam stress changes, the effect of the treatment of coal seam gas is also different.