摘要
瞬变电磁法(TEM)具有对低阻体敏感等优点,对煤矿富水异常区探测具有重要应用意义.为了查明伊敏河东煤田一矿区16-3上煤层含水层富水性分区,利用瞬变电磁法,通过对所采集数据进行滤波、时深转换后的反演数据处理与制图,进而分析视电阻率剖面、视电阻率切片等成果图件,查明了富水性低阻异常区的分布位置、含水性相对强弱、异常区空间形态及纵向分布演化.认为在研究区东北部与中西部共存在4处低阻富水性异常区,并且随着深度上与16-3上煤层顶板距离自50 m增加至150 m,东北部异常区扩大,富水性增强.另外,对测区内发育的F42断层的富水性进行了评价.富水区探测取得了良好的地质效果,为矿井安全生产提供基础依据.
Due to being sensitive to low resistance target body,Transient Electromagnetic Method（ TEM） has important application significance to prospect the water-rich region.To detect water-rich region of 16-3 coal seam,the measured TEM data filtered and conversed in depth is transferred into maps according to the inversion program.Then both the apparent resistivity section and the apparent resistivity section map are analyzed,finding out the distribution location rich water-based low resistance anomalies,aquifer relative strength,abnormal area space form and vertical distribution evolution.Based on this,it can confirm that there are four abnormal low resistance water-rich areas in the northeast and Midwest in research area and with 16-3 coal seam depth and distance from 50 m to 150 m,the abnormal area in the northeast is increasing,which in turn reflects water content is increasing.In addition,the water content of developed F42fault is evaluated.It has been proved to be successful in detection of water-rich area and provides fundamental basis for ensuring safe production.
出处
《矿业工程研究》
2013年第4期51-56,共6页
Mineral Engineering Research
关键词
瞬变电磁法
视电阻率
含水层富水性
煤矿水害
伊敏河东煤田
transient electromagnetic method
apparent resistivity
aquifers of water-richness
water hazards in coal mine
Yimin Hedong coalfield
