SH型槽波反射波在'岩-煤-岩'结构中的数据处理系统研究

摘要

针对SH型槽波反射波在"岩-煤-岩"结构中的数据处理系统不成熟、精确度不高等问题,采用Microsoft Visual Studio 2010平台,对数据处理系统进行深入研究.通过对煤层中所特有的槽波及其特性进行研究,给出了槽波的数学模型,提出在反射波中提取槽波,利用槽波进行矿井超前探测的理论,通过优化井下观测系统布置、改进绕射叠加扫描偏移算法,形成偏移剖面.研究结果表明,利用槽波独特的特性可以准确地分离出有效反射槽波,探测距离得到大幅提升,同时利用绕射叠加偏移成像系统可以有效地解决反射波归位问题、消除了虚像,矿井槽波超前探技术的逐步完善,提高了采空边界、断层的探测精度,提高对掘进前方隐伏地质灾害预报的准确率,确保矿井安全掘进.%In allusion to the problem that the data processing system of SH-type trough wave reflected in the "rock-coal-rock" structure to be immature and the accuracy was not high,with the Microsoft Visual Studio 2010 platform,for in-depth study of the data processing system.Through study of characteristics of the groove wave and its characteristics in the coal seam,the mathematical model of slot wave was given,and it was proposed to extract the groove wave in the reflected wave,based on the theory of mine advance detection,by optimizing the downhole observation system layout,improving the diffraction superposition scan migration algorithm,forming an offset profile.The results showed that the unique reflection wave can be accurately separated by the unique characteristics of groove wave,detection distance has been greatly improved,at the same time,it was possible to effectively solve the problem of reflection wave homing by using the diffraction superimposed imaging system,which eliminated the virtual image and the gradual improvement of the mine trough wave advance exploration technology to improve the mining boundary and fault detection accuracy,the accuracy of the disaster forecast will provide greater protection for mine safety.