Numerical simulation on transient electromagnetic response of separation layer water in coal seam roof
Haiyan Yang,
Junjun Jiao,
Qiang Wang
et al.
Abstract:Mining stress induces deformation and fracture of the overlaying rock, which will result in water filling the separation layer if the aquifer finds access to abscission space along the fracture channels. Accurate detection is crucial to prevent water hazards induced by water-bearing fractures. The 3-D time-domain finite-difference method with Yee’s grid was adopted to calculate full-space transient electromagnetic response; meanwhile, a typical geologic and geophysical model with a water-bearing block in an se… Show more
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