煤层高压脉动注水装置增透机理及脉冲特性研究  

Research on Feature of Pulse and Coal Seam Infusion Increase the Permeability Mechanism by Pulsed Waterpower Hammering with High Pressure Equipment

作　　者：满春雷[1] 张景松[1] 张飞[1] 张亚坤[1] 

机构地区：[1]中国矿业大学电力工程学院,江苏徐州221116

出　　处：《煤炭技术》2012年第7期14-16,共3页Coal Technology

摘　　要：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。The theoretically analyzes the mechanism ok coal seam excltahon by pulsed waterpower hammering with high pressure, for the problem of poor permeability for coal,gas drainage and low efficiency, research on the technology of coal seam infusion by pulsed waterpower hammering with high pressure, generate a wave function curve, establishing a wave function. pulse with the form of alternating stress to interference coal pores and cracks, promote the expansion and extension of coal porosity, in order to change the permeability of coal, the effect of improving the gas extraction, that will be has a certain reference value for further theoretical and experimental study of coal iniection technology.

关 键 词：脉动水锤波 煤层透气性 孔隙 裂隙 机理 

分 类 号：TD713[矿业工程—矿井通风与安全]