Detection and inversion of diggings water-bearing structure by using electrical imaging

DOI

10.2991/iceeg-16.2016.16How to use a DOI?

Keywords

detection, inversion, electrical imainging, waterbearing

Abstract

The water-riched overburden of a seabed mine poses threat to safe exploitation. The level -135 m strike drift of the Xinli mine district of Sanshandao gold mine in Shandong province was selected to be the survey site for electrical imaging, in order to map the groundwater distribution of the overlying rock under the level -135 mFour methods, which are; Wenner, Dipole-Dipole, Schlumberger and P-S were used at the selected drift, respectively. The apparent resistivity and inversion results obtained from using the Wenner, Dpole-Dpole and Schlumberger array, gave consistent information about the subsurface medium, which is that three different resistive layers exists beneath the -135 m level. The first rock mass which is highly resistive has an average thickness of 30 m and is located directly under the level -135 m, This indicates that little or no water exists in the rock mass between the levels of -135 m and -165 m since most of it have been discharged into -165 m drift. The rock mass ranging from 30 m to 60 m in depth under the -135 m level has low resistivity and fracture water. The polarizability of the P-S method relates to metal sulfide. P-S inversion results show two local anomalies that occurred at 370 m and 440 m along the survey line at shallow depth between 10 m and 15 m, which may be caused by rock mineralization. The obtained results show a good resemblance with the results obtained from hydrogeological surveys and hydrological structure analyses and that the gallery electrical imaging was able to map the water-bearing structures

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Fengshan Ma
AU  - Qingyun Di
AU  - Kepeng Li
AU  - Shanfei Wang
AU  - Wei Li
PY  - 2016/06
DA  - 2016/06
TI  - Detection and inversion of diggings water-bearing structure by using electrical imaging
BT  - Proceedings of the 7th International Conference on Environment and Engineering Geophysics & Summit Forum of Chinese Academy of Engineering on Engineering Science and Technology
PB  - Atlantis Press
SP  - 56
EP  - 58
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceeg-16.2016.16
DO  - 10.2991/iceeg-16.2016.16
ID  - Ma2016/06
ER  -