槽波地震勘探研究进展

槽波地震勘探技术经过长期发展与完善,在探测煤层内部构造发育、煤层厚度变化、夹矸分布形态等方面均取得了较为可靠的效果。为全面系统地了解槽波地震勘探技术,促进槽波地震勘探技术的发展,回顾了槽波地震勘探技术现状。首先,简述槽波地震勘探的原理;然后,依据槽波地震勘探的流程,按照震源激发、信号采集、预处理、信号提取、数据处理与分析的步骤,对相关技术的工作原理及方法进行分类整理,并对不同震源激发形式、信号提取方式以及数据处理技术做了对比分析;最后,系统总结了槽波地震勘探技术在煤厚分析、夹矸判别、构造识别等方面的工作和应用现状。目前,煤矿井下槽波地震勘探技术存在一定的局限性,探测精度等难以满足地质探测需求,今后,开发槽波雷达提高槽波地震勘探的精度是一个很好的发展方向。

Progress in research of in-seam seismic exploration

After long-term development and improvement, the in-seam seismic(ISS) technology has achieved relatively reliable results in detecting the internal structural development of the coal seam, the thickness variation of the coal seam, and the distribution pattern of the pinch. In order to comprehensively and systematically understand the ISS technology and promote the development of the ISS technology, the status of the ISS technology is reviewed. First, the principle of ISS is briefly described. Then, according to the process of ISS, according to the steps of source excitation, signal acquisition, preprocessing, signal extraction, data processing and analysis, the working principles and methods of related technologies are classified and the excitation modes and signals of different sources are applied. The extraction method and data processing technology were compared and analyzed. Finally, the system summarizes the work and application status of ISS technology in coal thickness analysis, pinch discrimination, structure identification and so on. At present, the coal mine underground ISS technology has certain limitations, and the detection accuracy is difficult to meet the geological exploration requirements. In the future, the development of channel wave radar to improve the accuracy of the ISS is a good development direction.