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利用采区三维地震勘探,全面系统地分析了随工作面推进采场覆岩采动裂隙的动态地震波场响应特征.通过三维数据体的纵、横向剖面分析以及采用对比解释法,研究了采空区、支撑压力区、采动影响带的地震波场响应特征,根据这些特征可以划分采空区范围、采动裂隙发育高度、裂隙“天窗”、采动影响范围.实践证明:利用三维地震技术进行覆岩采动裂隙的探测,技术上是完全可行的,探测效果明显.
Using the 3D seismic exploration of the mining area, the dynamic response characteristics of the seismic response of mining induced fractures along the working face are comprehensively and systematically analyzed.Through the longitudinal and transverse cross-section analysis of 3D seismic data and the contrast interpretation method, According to these characteristics, it is possible to divide the gob area, the height of the fractured rock, the “skylight” and the mining influence range.It has been proved that the use of 3D seismic Technology for overlying rock mining fracture detection, technically feasible, the detection effect is obvious.