|
Analytical studies of areas of deformation of the rock massif
surrounding drawn stope
O.Ye. Khomenko1, M.M. Kononenko1*, A.V. Kosenko2
1Dnipro University of Technology, Dnipro,
Ukraine
2Branch for Physics of Mining Processes of
the M.S. Poliakov Institute of Geotechnical Mechanics
of the National Academy of Sciences of Ukraine, Dnipro, Ukraine
*Corresponding author: e-mail: kmn211179@gmail.com
Physical and technical
problems of mining production, 2023, (25), 56-66.
https://doi.org/10.37101/ftpgv25.01.005
full text (pdf)
ABSTRACT
Purpose. Investigate changes in the amount of deformation of the rock array of the hanging
and lying sides in the unloading zones of the drawn stopes of the first and
second stages of processing.
Methods. Analytical
studies of the areas of rock mass deformation around the drawn stopes of
the first and second stages of development were carried out using a
comprehensive approach, which included the analysis and summarization of
previously conducted studies, analytical studies of the stress-deformed
state of the rock mass in the unloading zones of the cleaning chambers,
using the energy method and statistical data processing.
Findings. The regularities of the
development of deformation areas in the array of discharge zones of drawn
stopes have been established. The main areas of
deformation, which are located in the rocks of the hanging and lying sides,
in the massif of ore and stowing, have been determined. The shape of the
deformation areas around the drawn stopes has an ellipsoidal shape. The
magnitude of the deformation of the massif of rocks of the hanging and
lying sides, in the unloading zones of the drawn stopes of the first and
second stages of mining, with an increase in the depth of mining, changes
exponentially.
Originality. For mining depths of
840–1040 m, the exponential dependence of the amount of deformation in
the rock massifs of the hanging and lying sides on the depth of the
installation of the drawn stopes of the first and second stages of mining
has been established.
Practical implications. The obtained empirical dependences
make it possible to determine the amount of deformation of the massif of
rocks on the hanging and lying sides around the drawn stopes of the first
and second stages of development, with an increase in the depth of the
actual mining.
Keywords: iron ores, stowing, drawn stope, stress-strain
state, energy method,
deformation region
REFERENCES
1. Pysmennyi S., Fedko M., Shvaher N., Chukharev S. (2020). Mining of rich iron
ore deposits of complex structure under the conditions of rock pressure
development. E3S
Web of Conferences, 201, 01022. https://doi.org/10.1051/e3sconf/202020101022
2. Honcharuk, O., Ihnashkina, T., Bronnikovа,
V. (2020), Current state
of the mining and metallurgical complex of Ukraine: factors, trends and results. Efektyvna ekonomika,
(9), 60-72. https://doi.org/10.32702/2307-2105-2020.9.60
3. Lyadenko, T.
(2019), Features of manufacturing and supply activity of domestic industrial companies in the modern
stage of their developmen. Efektyvna ekonomika,
(4), 34-41. https://doi.org/10.32702/2307-2105-2019.4.34
4. Kosenko, A.V. (2023). Development of an
Efficient Process Scheme for Breaking High-Grade Iron Ores of
Low Strength and Stability During Sublevel Caving. Science and Innovation, 19(3),
38-47. https://doi.org/10.15407/scine19.03.038
5. Fedko, M.B., Kolosov, V.A., Pismennyy,
S.V., & Kalinichenko, Ye.A.
(2014). Economic aspects
of change-over to tnt-free explosives for the purposes of ore underground
mining in Kryvyi rih basin. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu,
(4), 79-84.
6. Bazaluk, O., Petlovanyi, M., Lozynskyi, V., Zubko, S., Sai, K., Saik, P. (2021). Sustainable
Underground Iron Ore Mining in Ukraine with Backfilling Worked-Out Area. Sustainability, 13(2), 834. https://doi.org/10.3390/su13020834
7. Petlovanyi, M., Ruskykh, V., Zubko, S., &
Medianyk, V. (2020). Dependence
of the mined ores quality on the geological structure and properties of the hanging wall rocks. E3S Web of Conferences, 201,
01027. https://doi.org/10.1051/e3sconf/202020101027
8. Myronova, I.
(2016). Prediction of contamination level of the atmosphere
at influence zone of iron-ore
mine. Mining of Mineral Deposits, 10(2), 64-71. https://doi.org/10.15407/mining10.02.064
9. Bazaluk, O., Petlovanyi, M., Zubko, S., Lozynskyi, V., Sai, K.
(2021). Instability Assessment
of Hanging Wall Rocks during Underground Mining of Iron
Ores. Minerals, 11(8),
858. https://doi.org/10.3390/min11080858
10. Khomenko, O., Kononenko, M., Danylchenko,
M. (2016). Modeling of bearing massif condition during chamber mining of ore deposits.
Mining of Mineral Deposits, 10(2),
40-47. https://doi.org/10.15407/mining10.02.040
11. Khomenko, O., Kononenko,
M., & Petlyovanyy, M. (2014). Investigation
of stress-strain state of rock massif around the secondary chambers. Progressive Technologies Of Coal,
Coalbed Methane, And Ores Mining, 241-245. http://doi.org/10.1201/b17547-43
12. Kononenko, M., &
Khomenko, O. (2010). Technology of support of workings near to extraction
chambers. New Techniques And
Technologies In Mining, 193-197. http://doi.org/10.1201/b11329-32
13. Russkikh, V., Yavors’Kyy, A., Zubko, S., & Chistyakov, Ye. (2013). Study of
rock geomechanical processes while mining
two-level interchamber pillars. Mining of Mineral Deposits, 149-152. https://doi.org/10.1201/b16354-25
14. Khomenko, O.Y. (2012).
Implementation of energy method in study of
zonal disintegration of rocks. Naukovyi
Visnyk Natsionalnoho Hirnychoho Universytetu.
(4), 44-54.
15. Zubko S.A., Kononenko M.M., Petlovanyi M.V. (2015). Obgruntuvannia
ratsionalnykh parametriv
kamer tretoi cherhy vidpratsiuvannia pry pidzemnomu vydobutku zaliznoi rudy. Metallurhycheskaia
y hornorudnaia promyshlennost, (2). 93-98.
|
