反射槽波可用于单条巷道内探测巷道两侧和掘进前方一定区域内的断层等异常地质构造。目前该项技术已在我国多数矿井开展过探测试验和工程应用，对采掘危险区治理、工作面布置和采掘方案设计等生产环节起到了重要的指导作用。阐述了反射槽波的处理方法和原理，比较了面对巷道的侧帮和掘进前方2种不同探测区域时，反射槽波数据和处理方法的异同之处，着重对反射槽波的叠加成像、偏移成像以及掘进工作面超前成像3类成像方法的技术原理、适用条件和研究进展进行了梳理和分析，总结了反射槽波在巷道侧帮与掘进前方断层、采空区以及陷落柱探测方面的典型案例。在此基础上提出进一步提高探测能力的改进方向：研究适用于槽波频散性的反褶积方法，有效压缩反射槽波并依据频散速度准确偏移归位，提高成像分辨率；通过极化处理求出槽波的偏振方向，从而减少“画弧”现象；借鉴束偏移技术，选取特定方向的槽波参与成像，提高成像信噪比；研究影响反射槽波信号强弱的地质条件和采集条件，在不增加震源能量的条件下有效增强反射槽波；研制新型震源，提高反射槽波探测应用的安全性和适用性。对反射槽波未来的应用方向进行展望，以期促进反射槽波探测技术发展，为煤矿安全高效开采提供保障。

Reflected in-seam wave can be used in one roadway to detect the abnormal geological structures such as faults in some area on both sides of the roadway or in front of tunneling. In this paper, the data and processing method of the reflected in-seam wave were compared based on the 2 different detection areas on side of the roadway and in front of tunneling. In particular, the technical principles, applicable conditions and research progress of three imaging methods of reflected in-seam wave were analyzed and sorted out, including the stack imaging, migration imaging and advance imaging of tunneling face. Besides, the typical cases of reflected in-seam wave in the detection of faults, goafs and collapse columns on the side of roadway and in front of tunneling were summarized, and proposed the directions for further improvement of the detection capability: Study of the deconvolution method suitable for the dispersion of in-seam wave to the effective compression of the reflected in-seam waves and the accurate migration according to the dispersion velocity to enhance resolution of image. We use polarization processing find the polarization direction of in-seam wave thus reducing the arcing phenomenon. We draw on beam migration technology to selected in-seam wave in specific direction for imaging to improve the signal-to-noise ratio. Study of the geological conditions and acquisition conditions affect the strength of reflected in-seam wave effectively enhance the reflected wave without increasing the seismic source energy. Moreover, the new seismic source should also be developed to improve the safety and applicability of the detection application of the in-seam wave. The future application directions of reflected in-seam wave was prospected for the purpose of promoting the development of reflected in-seam wave detection technology and better guarantee the safe and efficient mining of coal mines.