高压旋转水射流防治煤矿冲击地压实验研究

Prevention of rockburst in mines by high pressure rotational jetting

冲击地压是采矿业中突发性、瞬息难以预见的灾害,它的发生常常会造成巨大的经济损失和人员伤亡。因此,研究便捷、可靠的防治方法,成为防冲减灾工作中的重要课题之一。传统防治方法中的大孔径机械钻孔卸压法,存在卡钻、长距离大孔径钻孔钻不动、排渣困难等难题。本文作者采用高压旋转水射流钻孔法,从地面实验中克服了上述问题,并研制了相关设备。通过多次试验数据表明,该方法是可行的,并为长距离、大孔径钻孔卸压“防冲”研究提出了一个新的可行的科学方法。

Rockburst is an abrupt and unexpected disaster, which often causes great economic loss and personal casualties. Thus, the development of some convenient and reliable methods becomes one of the important subjects to prevent rockburst with traditional prevention methods, big dimension mechanical hole-drilling method has drill stuk, long distance, difficult dregs discharge problems. In the paper, hole-drilling with high pressure rotational jetting method is applied, which overcomes the above problems and is developed to be a relative equipment. The results of some test measurement data indicate that it is feasible and provides a new and practicable method for long distance and big dimension hole-drilling to leak pressure and prevent rockburst.