Manevski, Vladimir and Delipetrov, Todor and Doneva, Blagica and Delipetrev, Marjan and Dimov, Gorgi (2013) Geo-electrical models based on data gained from the coal mine “Suvodol”. 5th Jubilee Balkan Mining Congress. pp. 279-283. ISSN 978-608-65530-0-5
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Abstract
Geophysics as science is significantly used in different industries
such as the mining industry, the geotechnics, engineering
geology, hydrogeology etc. In the Republic of
Macedonia the usage of geophysics researches while determining
the geological and structural characteristics of
the working environments is not nearly on the level on
which it should be. For these reasons this paper is going to
elaborate the usage and the practicality of the geophysical
examinations in the mining industry.
The example elaborated in this paper is based on data
gained from the coal mine “Suvodol”. Through examination
of the parameters from the boreholes and the geological
map of the coal mine we determinate the layered
structure of the ore body that provides favorable conditions
for applying the method of geo-electrical sounding.
For this purpose, we use a measuring composition made of
two current and two potential electrodes placed inline in
Schlumberger layout.
Synthetic curves for real electrical resistance can be made
while using the processed data from the boreholes. If the
method is solved indirectly from these curves we can determine
the specific electrical resistance of the materials
which are present in the examined environment.
The depth of the examined area that is stimulated by the
electrical current directly depends on the distance of the
current electrodes. After every new measuring the current
electrodes are successively drifting away and thereby we
gain values for the apparent electrical resistance for different
depths in the examined area. By connecting the
values of the apparent electrical resistance, we create a
curve for apparent electrical resistance of the environment.
A geo-electrical model of the researched environment is
created by connecting all obtained curves. By processing
the geo-electrical model using the data gained from the
curves of the real electrical resistance, a geological image
for the examined environment can be made.
When researching a specific environment with applying
geophysical methods the number of the boreholes which
are necessary for establishing the geological map can be
reduced.
The loss of data that occurs by the reduction of the number
of the boreholes is compensated with the data gained
from the geophysical researches and therefore when researching
geologically known or unknown environments
with the use of the geophysical methods the costs can
significantly reduce.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Earth and related environmental sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Blagica Doneva |
| Date Deposited: | 22 Jan 2014 15:28 |
| Last Modified: | 22 Jan 2014 15:28 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/8756 |
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