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INVESTIGATION OF THE SUPPORT EFFECT ON THE WATER
INFLOW TO THE MINE WORKING IN DIFFICULT HYDROGEOLOGICAL CONDITIONS AT THE
CROSSING OF TECTONIC DISPLACEMENT Y.O. Vynohradov Institute for Physics of Mining Processes the
National Academy Sciences of Ukraine, Dnipro, Ukraine *Corresponding author: e-mail: my_pochta_1r@ukr.net Physical and
technical problems of mining production, 2019, (21), 55-66. https://doi.org/10.37101/ftpgp21.01.005 ABSTRACT Purpose. The purpose of the work is research of the support
effect on the water inflow to the mine working that driving in difficult
hydrogeological conditions at the crossing of tectonic displacement. Methods. A method for studying the state of
layered rocks with a mine working in the presence of watered layers in its
vicinity, previously developed by the author, as well as the finite element
method were used to solve the problem of water filtration in
a deformable rocks. Findings. The results of calculating the
permeability of near-edge rocks and water pressure at different sites of
mining, which crosses a geological disturbance: beyond the influence of a
geological disturbance, are presented. at a certain distance and near a geological disturbance.
It is shown that the use of anchor supports prevents
the development of the process of crack formation in the roof of the mine,
and keeps the rocks in a natural state. Creating an anchor-rock structure,
which is formed due to the spatial arrangement of steel-polymer anchors,
makes it possible to control the level of monolithicity,
and hence permeability, of rocks around the mine in various hydrogeological
conditions. As a result, the process of filtering water from aquiferous rock strata is restrained,
which prevents or significantly reduces water inflows into mining. The
effectiveness of the use of anchor support during the passage of a mine near
a tectonic disturbance is shown and substantiated. Originality. For the first time, modeling of water
inflows into a mine working in the zone of influence of tectonic disturbance
was carried out for various types of fastening of the working,
the use of anchor fastening in difficult hydrogeological conditions is
justified. Practical
implications. The use of anchor supports effectively
prevents water inflow into a mine working even in disturbed permeable rocks
near a tectonic displacement. Keywords: water inflow into mine working, rock permeability, water filtration, numerical
simulation. REFERENCES 1. Kartoziya, B. A., & Korchak,
A. V. (1996). Klassifikatsiya i
kriterii otsenki slozhnykh gorno-geologicheskikh
usloviy pri stroitel'stve podzemnykh sooruzheniy. Gornyy informatsionno-analiticheskiy byulleten'
(nauchno-tekhnicheskiy zhurnal),
(1), 15-23. 2. Purgina, D. V. (2018). Izmenenie gidrodinamicheskikh uslovij
pri osvoenii ugol`ny`kh mestorozhdenij na primere Nikitinskogo
mestorozhdeniya (Kuzbass).
PhD. Sc. Tomsk: TulGTU. 3. Krukovskiy, A.P., & Krukovskaya,
V.V. (2017). Tekhnologiya ankernogo
krepleniya gornoy vyrabotki pri perekhode geologicheskogo narusheniya. Geotekhnicheskaya mekhanika, (132), 17-26. 4. Alikin, V.N., Litvin,
I.E., Scherbakov, S.M., & Borodavkin, V.P. (1992). The finite element method in the problems
of gas-petroleum field mechanics. Moskva: Nedra. 5. Masket,
M. (2004). Flow of homogeneous
fluids in a porous medium. Moskva-Izhevsk: IKI. 6. Krukovska, V.V. (2015) Simulation of coupled processes that
occur in coal-rock massif during mining operations, Geotekhnicheskaya mekhanika,
(121), 48-99. 7. Krukovskaja, V.V., Krukovskyj,
A.P., & Vynogradov, Yu.A.
(2017). Sposib doslidzhennja stanu obvodnenogo girs'kogo masyvu navkolo girnychoi' vyrobky. Patent No. 114572, Ukraine. 8. Zienkiewicz,
O.C. (2000). The finite element method.
Butterworth-Heinemann, Т.
1, 690 p.
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