采煤工作面槽波相对透射系数层析成像技术

Tomography technique of relative transmission coefficient of in-seam wave in coal mining face

为了实现大型采煤工作面内小构造的精确探测问题,对槽波相对透射系数层析成像技术展开研究。通过现场工程试验数据的处理分析,研究巷道对槽波透射的影响,将CT成像结果与实际地质资料对比,结果表明:槽波相对透射系数层析成像方法能够清晰地反演出高度小于1/3煤厚的巷道的位置及形态;用实际数据验证了其成像结果稳定性好、精度较高,该技术是探测工作面内部小构造的有效手段。

In order to achieve the accurate detection of small structures in the working face,the relative transmission coefficient tomography technology related to in-seam wave is studied.According to the management and analysis of the data collected at the site of some projects,and the comparison between the CT imageing technology and the actual geology data,the relative transmission coefficient tomography technology is proved to be able to show the location and the form of a roadway shorter than1/3thickness of coal seam clearly and accurately.Through field engineering test,the stability of the relative transmission coefficient tomography technique is satisfying,and the accuracy is quite high.This can serve as an very effective method to detect the internal small structures in the working face.