煤矿安全2019，Vol.50Issue(10)：185-189,5.DOI:10.13347/j.cnki.mkaq.2019.10.043
井下富水区瞬变电磁响应特征分析
Transient Electromagnetic Response Characteristics of Mine Water-rich Area
摘要
Abstract
To improve the interpretation effect of detecting water-rich area by whole-space transient electromagnetic method, we adopted finite element method to simulate the response forms and characteristics of the induced electromagnetic field under different electrical and geometric parameters of surrounding rock and water-rich area, and analyzed the measured data in field. The study results showed that: larger difference of electrical properties between surrounding rock and water-rich area, better conductivity and bigger volume of water-rich area, closer distance and smaller normal angle of coil and the abnormal body, as well as the similar spatial tri-axial size, are beneficial to the expression of anomalous response signals.关键词
全空间瞬变电磁法/富水区/三维有限元模拟/二次场/衰减/时空变化Key words
whole-space transient electromagnetic method/water-rich area/3D finite element simulation/induced electromagnetic field/attenuation/temporal and spatial variation分类
矿业与冶金引用本文复制引用
陈健强,张永超,邱浩,廉玉广,樊林林..井下富水区瞬变电磁响应特征分析[J].煤矿安全,2019,50(10):185-189,5.基金项目
国家科技重大专项资助项目(2016ZX05045001-004) （2016ZX05045001-004）
国家自然科学基金面上资助项目(51704162,51674142) （51704162,51674142）
