|
ABOUT THE STABILITY OF MINING PRODUCTS SUPPORTED BY
ARMO-BREED SHELLS IN A STRESSED ROCK MASS
S.V. Tynyna1*
1Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Science of Ukraine, Dnipro, Ukraine
*Corresponding author:
e-mail: haritonroots@gmail.com
Physical and
technical problems of mining production, 2021, (23), 72-78.
https://doi.org/10.37101/ftpgp23.01.005
full
text (pdf)
ABSTRACT
Purpose. The development
of the Donbass coal mining industry leads to the
transition of mining operations to ever deeper
horizons. Thus, the problem of developing methods for securing and maintaining mine workings in the deep mines
of Donbass is becoming more and more
urgent.
Methods. The analysis
of changes in the state
of the rock mass, which occurred when the equilibrium
was disturbed and the transition
into motion of the boundaries
of zones of different deformation of rocks due to
the stress gradient (the presence of voids between the anchorage and the rock
mass), is presented. Mine instrumental observations have established that the formation
of destruction zones near capital, preparatory and production workings is of a temporary nature, develops abruptly and occurs along cracks parallel to the inner
surface of the workings.
Findings. The necessity
of applying additional measures to increase the bearing capacity of the support has been substantiated.
Originality. It is shown that when there is an excess
of energy, it is recognized
on the basis of the
array, as well as it
is injected onto the surplus
of the process.
Practical implications. Analysis of
the kinetics of destroyed rocks near open surfaces showed that, taking into account the disturbance of the rock mass
near them, in order to
limit its development during the operation of workings, it is necessary
to solve in a complex the issues of rational involvement in the work of
fixing the zone of disturbed
rocks around the workings.
Keywords: coal mining,
mining, deep horizons, development of methods of fastening, support of mine workings, the state of
the massif, zones of various
deformation of rocks, stress gradient, fastening of the zone
of disturbed rocks
REFERENCES
1. Zaslavskiy YU.Z., Lopukhin
A.A., Druzhko Ye.B.
(1984). Inyektsionnoye uprochneniye
gornykh porod. M.: Nedra, Moskva. 176 s.
2. Maksimov A.P., Yevtushenko V.V. (1994). Tamponazh gornykh porod. M.: Nedra, Moskva. 176
s.
3. Kuznetsov G.N., Budko M.N., Vasilyev YU.I., Shklyarskiy M.F., Yurevich
G.G (1968). Modelirovaniye proyavleniy
gornogo davleniya. L.: Nedra, Leningrad. 280 s.
4. Nasonov I.D. (1969). Modelirovaniye
gornykh protsessov. M.:
Nedra, Moskva. 204 s.
5. Usachenko B.M., Kirichenko
V.YA., Shmigol A.V. (1992). Okhrana podgotovitelnykh vyrabotok glubokikh gorizontov shakht Zapadnogo Donbassa. M.: Nedra, Moskva.
167 s.
6. Tynyna S.V., Bulat A.F., Sofiiskii K.K., Bokii B.V., Sheiko A.V., Agaev A.R.
(2016). Upravlenie aehrologicheskimi
i geomekhanicheskimi protsessami v ugolnykh shakhtakh. Mariupol: OOO «Skhidnyi
vydavnychii dim». 300 s.
7. Sofiiskii K.K., Stasevich
R.K., Bokii B.V. i dr.
(2016). Bezopasnost i ehffektivnost metanougolnykh shakht. Kiev: FLP Khalikov
R.KH. 308 s.
8. Tynyna S.V., Malich N.G., Vasilev D.L., Usov O.A.
(2020). Postroenie matematicheskoi
modeli prochnosti gornykh porod pri szhatii s uchetom kontaktnogo treniia. Systemni tekhnolohii. System technologies, 6(131), 94–106.
9. Kolesnikov V.G., Levchenko
G.V. (2000). Kinetika i
mekhanizm razrusheniya porod vblizi obnazheniy. Geotekhnicheskaya
mekhanika, (21), 83–86.
10. Kolesnikov V.G., Levchenko
V.G. (2001). Kinetika razrusheniya
porod v prikonturnoy oblasti. Geotekhnicheskaya mekhanika, (27), 36–41.
11. Nikolayevskiy V.N. (1981). O razrushenii
vyazkouprugikh tel. Prikladnaya
matematika i mekhaníka, 45(6), 1121–1128.
|
