断层构造在矿井工作面震波CT反演中的特征显现

Character appearance of fault structure in seismic wave CT inversion for mine work faces detecting

为获得不同断层构造的CT反演特征,通过实际地质模型探测实验,对断层构造与工作面巷道不同夹角的波速重建图像进行了对比研究.结果表明:当两者之间夹角大于30°时断层构造重建效果显著,构造迹线及其特征明显.同时断层构造反演时受到不同因素的影响,断层本身的性质、观测系统、正反演方法及射线覆盖次数等都是震波CT图像重建的影响因素.

Through practical detecting experiment in geological model, the velocity rebuilding images with different degree between fault structure and laneway were contrasted for getting the different CT inversion characters of the fault structure. The results show that the structure rebuilding effect is notable when fault structure has angle more than 30° with laneway. And then the structure character is distinct. Fault structure inversion is affected by a lot of factors, such as fault character, observation system, forward and inversion algorithm method and radial overlay times, and so on.