煤矿采空区地面综合物探方法优化研究

发布时间：2018-06-29 05:02

  本文选题：煤矿采空区 + 综合物探　； 参考：《煤炭科学技术》2017年01期

【摘要】：为实现对煤矿采空区灾害的精细探测,基于采空区类型划分、地面物探方法特点及适用性研究、综合物探案例分析,进行了地面综合物探方法优化。结果表明:煤矿采空区地面精细综合探测应采用2种或2种以上的物探方法,做到地震类方法与电磁类方法相配合、同类物探方法相补充,测网密度布置及参数设定符合探测任务要求;埋深小于50 m的极浅采空区宜采用探地雷达法和高密度电阻率法探测;埋深50~150 m的浅层采空区宜采用浅层地震法、瞬变电磁法或高密度电阻率法探测;埋深150~400 m的中深采空区宜采用地震法、瞬变电磁法、可控源音频大地电磁法或音频大地电磁法探测;埋深大于400 m的深层采空区宜采用三维地震法、可控源音频大地电磁法、音频大地电磁法或瞬变电磁法探测。
[Abstract]:In order to realize the fine detection of goaf disasters, based on the classification of goaf types, the study of the characteristics and applicability of geophysical prospecting methods and the analysis of geophysical exploration cases, the optimization of geophysical exploration methods is carried out. The results show that two or more kinds of geophysical prospecting methods should be used to detect the ground in goaf of coal mine, so that the seismic and electromagnetic methods can be coordinated and the similar geophysical prospecting methods should be supplemented. The density arrangement and parameter setting of the measuring network meet the requirements of the exploration task, the ground penetrating radar method and the high density resistivity method should be used in the extremely shallow goaf with a buried depth of less than 50 m, and the shallow seismic method should be used in the shallow goaf with a buried depth of 50 ~ 150 m. The seismic method, transient electromagnetic method, controllable source audio magnetotelluric method or audio magnetotelluric method should be used in the middle depth goaf with a depth of 150m or 400m. Three dimensional seismic method, controlled source audio magnetotelluric method, audio magnetotelluric method or transient electromagnetic method should be used in deep goaf with buried depth of more than 400 m.
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本文编号：2080964