论文部分内容阅读
一、前言 探测矿柱及工作面前方几十米范围内的岩层内部缺陷(小断层、裂纹等)方法有多种,当前看来,以人工地震法所产生的弹力波进行探测是最有前途的。 一般情况下均以地震波的传播速度及衰减为研究课题。后者易受传感器与岩石面的接触状态变化等探测方法的微小差异的影响,使用时问题较多。前一种方法,如果能使波形上升明显,较好地分离杂波,满足其种条件的话,是比较容易搞的。所以,目前多数都是进行地震波传播速度的测试研究。有关的研究和发表的文章也较多。
I. INTRODUCTION There are many methods for detecting internal faults (small faults, cracks, etc.) within a few tens of meters in front of pillars and working face. At present, it is the most promising method to detect elastic waves generated by artificial seismic method of. Under normal circumstances are the seismic wave propagation speed and attenuation as the research topic. The latter is susceptible to small differences in detection methods such as changes in the contact state between the sensor and the rock surface, which cause problems when used. The former method, if the waveform can be significantly increased, the better separation of clutter, to meet their conditions, it is relatively easy to engage. Therefore, at present, most of them are testing the propagation speed of seismic waves. The related research and published articles are also more.