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从理论上分析了脉动水力锤击煤层的激发机理,针对煤层透气性能差、瓦斯抽采效率低等问题,进行了高压脉动水力锤击注水技术研究,生成波函数曲线,建立起波函数。脉冲波以交变应力的形式对煤层中的孔隙和裂隙进行干扰,使煤层孔隙扩展和延伸,以此改变煤层的透气性,对改善瓦斯抽采效果、进一步理论和实验研究煤层注水技术有一定的参考价值。
In this paper, the mechanism of pulsating hydraulic hammering on coal seam is theoretically analyzed. In view of the problems of poor gas permeability and low efficiency of gas drainage, high pressure pulsating hydraulic hammering water injection technology is studied. The wave function curve is generated and the wave function is established. The pulse wave interferes the pores and fissures in the coal seam in the form of alternating stress, which expands and extends the pore of the coal seam to change the permeability of the coal seam and improve the effect of gas drainage. Therefore, there is a certain theoretical and experimental study on coal seam water injection technology The reference value.