井下陷落柱勘探与判读实践

Exploration and Interpretation Practice of Underground Collapse Column

为准确实现井下陷落柱的勘测与判读,采用理论分析和现场实测方法,对陷落柱发育规律、勘探判读机理和方法进行研究。结果表明,反射波在陷落柱边界出现波终断或能量跌宕变弱以及同相轴扭曲、产状突变、分叉合并和圈闭现象,实测永聚煤业XL1陷落柱为反漏斗型,在10号煤底板中的长轴、短轴长度为79m和37m,与地震波判读结果基本一致。

In order to accurately realize the survey and interpretation of the underground collapse column, theoretical analysis and field measurement methods are used to study the development law of the collapsing column and the mechanism and method of exploration interpretation. The results show that the reflected wave appears at the boundary of the collapse column, the wave is terminated or the energy is weakened, and the in-phase axis is twisted, the sudden change of the production, the bifurcation and the trap are observed. The measured XL1 collapse column of the Yongju Coal Mine is the anti-funnel type. The lengths of the long and short axes in the coal floor are 79m and 37m, which are basically consistent with the seismic wave interpretation results.