高压水射流割缝防治冲击地压的数值模拟

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。传统的防治方法各有不足,将高压水射流割缝技术引用到防治冲击地压当中来,实现了本层煤的解放。基于ANSYS有限元软件建立高压水射流防治冲击地压的有限元模型,并对割缝后各部分的应力变化进行了数值模拟。结果表明,高压水射流割缝技术不但能够实现煤层卸压,而且卸压效果较好,具有很好的发展前景。

Numerical Simulation of Rockburst Prevention by High-pressure Water Jet Applied to Cutting Coal Seam

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.Conventional methods have inadequate,the technique of high-pressure water jet cutting was applied to release the pressure of coal layer.Based on ANSYS soft-ware,the finite element model of the high-pressure water jet cutting is established.The numerical simulation of stress transfo...