Detection of Roof Sandstone Water by Transient Electromagnetic Method and Design of Water Exploration and Drainage
XU Haitao
REN Jianjun
LI Yongjun
Abstract：The TEM method is sensitive to groundwater and has the features of close to the object and high resolution. For this purpose, PROTEM47 system was used for detecting the roof aquosity of No. 5302 working face with the coil arrangement mode of common face and dipole, in 60m range above the roof, the water-bearing fissures in the roof developed, an abnormal water zone existed in the roadway roof, these were verified by drilling and water drainage and thus provided reliable technical support for the safe mining of the face. The underground dewatering and the face coal mining data showed that the use of TEM method to detect the roof aquosity of working face has higher accuracy.
Keywords：transient electromagnetic methodroof sandstonewater abundancewater exploration and drainage
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 43-46 )