声发射技术在研究煤层解吸破坏过程中的应用

Application of AE Technology in the Study of Energetic Failure of Coal Seam Desorption

文章是在假设瓦斯解吸过程会导致煤层动力失稳的基础上通过声发射实验观测和分析的。通过声发射技术实验观测在煤层吸附和解吸附的过程中产生的体积应变、孔隙压力变化来研究和模拟煤层瓦斯导致的煤层体积变形和动力破坏。通过分析传感器接收并处理过的信号来解释煤层发生动态失稳的机理,实验结论与预期取得较好的吻合。

This paper is completed on the hypothesis of desorption may induce the energetic failure of coal seam.In this article,the volumetric strain and pore pressure changes induced by sorption and desorption will be used to study the deformation and energetic failure by AE technology in coal cores.By analyzing results received by sensor and compared it with what we supposed before the experiment,the result fits very well with what we expected.