Review and Challenges in the Geophysical Mapping of Coal Mine Water Structure

Generally, the water-bearing structures of coal mines mainly include seam, roof, floor, and goaf, while main water-conducting faults, collapsed columns, goaf areas. The most commonly used methods for detection above seismic method, high-density electrical controlled source audio-frequency magnetotelluric transient electromagnetic method. Theoretically, have a higher resolution, which can be to determine targets’ geometry, but unable whether target is filled with water, are capable this, although lower resolution. Therefore, it necessary adopt comprehensive geophysical prospecting in actual field measurement mine water guarantee accuracy. Based on passage, first, we introduced characteristics then analyzed results different by examples. Finally, pointed out that, essential develop or airborne sake convenience; second, time that three-dimensional technology, multisource multiresolution big data technology high