摘要
物探技术对于煤矿水灾害防治具有重要作用。以霍州煤电汾源煤业某矿井为试验矿井,采用瞬变电磁、直流电法、无线电透视技术对煤层底板构造及富水性进行综合性探测,并对底板突水性进行了分析。研究结果表明:采用瞬变电磁,得出工作面底板存在三个低电阻异常区,且与巷道底板最小垂距为19m;采用直流电法,得出两巷道底板均存在三个低电阻异常区,且与巷道底板最小距离为0m;采用无线电透视,得出勘探范围内存在两个异常区,且电磁波能量衰减强烈、异常幅值很高,分布不均匀。
Geophysical prospecting techniques play an important role in prevention and control of water disaster in coal mine.Taking a certain mine in Fenyuan Coal Industry of Huozhou Coal Electricity Group as test mine, the transient electromagnetic, DC electrical method and radio perspective technology were applied to conduct compre-hensive prospecting on the floor structure and water abundance in coal seam, and the water inrush of the floor was analyzed.The results showed that by applying transient electromagnetic, there existed 3 low-resistivity abnormal ar-eas in the floor of working face, and the minimum vertical distance from them to the roadway floor was 19 m.By u-sing DC electrical method, there existed 3 low-resistivity abnormal areas in both the floors of roadway, and the min-imum distance from them to the roadway floor was 0 m.By adopting radio perspective technology, there existed 2 abnormal areas in the exploration scope, and the electromagnetic wave energy had a strong attenuation and high ab-normal amplitude, as well as non-uniform distribution.
出处
《中国安全生产科学技术》
CAS
CSCD
2014年第12期92-98,共7页
Journal of Safety Science and Technology
基金
国家自然科学基金面上项目(51274088)
国家自然科学基金青年科学基金项目(50804013)
关键词
水文地质
综合物探
富水性
构造
hydrogeological
comprehensive geophysical prospecting
water abundance
structure
