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众所周知,为防止冲击地压和煤与瓦斯突出进行煤体注水时,在许多情况下没有获得应有的效果。由此可以推断,予先湿润煤体的应用范围是有局限性的,它取决于煤的附加充水能力的某些性质。我们试图确定煤体注水防止冲击地压的适用范围。同时,其中一些认识在评价湿润煤体对予防煤与瓦斯突出、煤尘和内因火灾的有效性时,同样可能是有益的。煤的附加充水能力,首先取决于在自然条件下煤层沿裂隙的透水性、煤的总孔
As we all know, in order to prevent rock burst and coal and gas outburst coal injection, in many cases did not get the desired effect. From this it can be inferred that the range of application of pre-wetted coal bodies is limited and depends on certain properties of the coal’s additional water-filling capacity. We tried to determine the applicable range of water injection to prevent rock burst. At the same time, some of these understandings may also be useful in assessing the effectiveness of wetted coal in preventing coal and gas bursts, coal dust and internal fires. The additional water-filling capacity of coal depends, first of all, on the permeability of the coal seam along the fracture under natural conditions,