瞬变电磁三维显示技术在大型断层构造导水通道探测中的应用

Application of TEM 3D Display Technology in Detection of Water Channel of Large Fault Structure

付村矿区东部边界欢城断层抬升地层后,造成开采煤层与奥灰含水层对口接触,威胁矿井安全生产。为查明欢城断层富水性及大致导水通道发育范围,利用PROTEM-47瞬变电磁仪对其进行探查,并利用MATLAB软件构建瞬变电磁三维显示系统,利用三维显示技术分析其导水通道发育情况。在构建瞬变电磁三维显示系统时,解决了非矩形探测区域数据网格化的问题,完成了数据体三维显示及低阻区域单独剥离显示的功能,提高了瞬变电磁探查分析的精度和效率。

After the Huancheng fault in the eastern boundary of Fucun mining area uplifted the stratum, the mining coal seam contacted with the Ordovician limestone aquifer, which threatened the safety of the mine production. In order to find out the water-bearing of Huancheng fault and the development range of its water channel, the PROTEM-47 transient electromagnetic instrument is used to explore it, and a set of three-dimensional display system of transient electromagnetic is built by MATLAB software, and the development of its water channel is analyzed by three-dimensional display technology. In the construction of TEM 3 D display system, the problem of gridding data in non rectangular detection area is solved, and the functions of 3 D display of data volume and separate display of low resistance area are completed, which improves the accuracy and efficiency of TEM exploration and analysis.