Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50999#.VFHTu1fHRK0 Author(s) Xuan Wang , Liquan Guo Affiliation(s) School of Earth and Environment, Anhui University of Science and Technology, Huainan, China . ABSTRACT Coal working face is damaged more and more seriously by water below the coal face floor. Therefore, floor water detection is a must in the process of extraction. This article aims to introducing application and principle of the two-gateways parallel 3-D electrical technology and the arrangement of the observation system. The authors use this method to detect the water under the floor of a mine in north of Anhui. The results show that the two-gateways parallel 3-D elec...
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