基于SH槽波采空区探测技术研究

矿井安全生产受前方采空区、断层破碎带等复杂地质因素制约，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。对矿井槽波探测特性提出了系统的数据处理方法，对比分析了现有观测系统布置方式，提出了二分量SH槽波探测观测系统；依据SH槽波的特性，提出了利用带通滤波结合τ-p域波场分离技术实现波场分离；从而为巷道超前地质预报提供必要的技术支持。

Study on detection technology in goaf based on SH channel wave

Colliery safety production is severely constrained by some complex geological factors，such as goaf and fault fracture zone ahead，mine exploration advance wave groove technology gradually improve and perfect mined border，gave systematic data processing method，analyzed current arrangement of observation system conparitively，proposed the 2D SH channel wave observation system. According to the features of SH channel wave，this paper put forward the combination of using band-pass filter and τ-p wave field separation technique to realize wave field separation；deeply studied the diffraction migration stack algorithm. Through improving observation systems and data processing method to eliminate the phenomenon of "arc"，it can provide the necessary technical support to the tunnel geological forecast.