The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin
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Інститут геофізики ім. С.I. Субботіна НАН України
2010
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| Назва видання: | Геофизический журнал |
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| Цитувати: | The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin / A. Antsiferov, M. Dovbnich, V. Kanin, I. Viktosenko // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 3-5. — Бібліогр.: 4 назв. — англ. |
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irk-123456789-963852016-03-16T03:02:16Z The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin Antsiferov, A. Dovbnich, M. Kanin, V. Viktosenko, I. 2010 Article The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin / A. Antsiferov, M. Dovbnich, V. Kanin, I. Viktosenko // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 3-5. — Бібліогр.: 4 назв. — англ. 0203-3100 http://dspace.nbuv.gov.ua/handle/123456789/96385 en Геофизический журнал Інститут геофізики ім. С.I. Субботіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| format |
Article |
| author |
Antsiferov, A. Dovbnich, M. Kanin, V. Viktosenko, I. |
| spellingShingle |
Antsiferov, A. Dovbnich, M. Kanin, V. Viktosenko, I. The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin Геофизический журнал |
| author_facet |
Antsiferov, A. Dovbnich, M. Kanin, V. Viktosenko, I. |
| author_sort |
Antsiferov, A. |
| title |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin |
| title_short |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin |
| title_full |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin |
| title_fullStr |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin |
| title_full_unstemmed |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin |
| title_sort |
nature and prediction of regional zoning for dynamic phenomena in mines of the donets coal basin |
| publisher |
Інститут геофізики ім. С.I. Субботіна НАН України |
| publishDate |
2010 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/96385 |
| citation_txt |
The nature and prediction of regional zoning for dynamic phenomena in mines of the Donets Coal Basin / A. Antsiferov, M. Dovbnich, V. Kanin, I. Viktosenko // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 3-5. — Бібліогр.: 4 назв. — англ. |
| series |
Геофизический журнал |
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The nature and prediction of regional zoning for dynamic
phenomena in mines of the Donets Coal Basin
A. Antsiferov1, M. Dovbnich2, V. Kanin1, I. Viktosenko2, 2010
1UkrNIMI, National Academy of Sceinces of Ukraine, Donetsk, Ukraine
ukrnimi@ukrnimi.donetsk.ua
2National Mining University, Dnepropetrovsk, Ukraine
dovbnichm@mail.ru
The Donets Coal Basin is the basic fuel and ener-
gy region of Ukraine. Promotion of safety measures
(accident prevention) in mining is the main industri-
al and functional problem of coal-mining companies
that requires the very careful attention and scienti-
fic learning. In coal mines of the Donets Coal Basin
as, it must be said, in other coal regions, where
coal is being mined underground, at all times there
is a real hazard of dynamic phenomena in mine ent-
ries. First of all a hazard is due to gas-dynamic
phenomena — sudden outbursts [Antsiferov et al.,
2009]. Generally, sudden outbursts occur after a
number of preliminary stages defined by many fac-
tors. Together with man-induced impact on rock
mass being mined, geological factor is also involved.
One of the main characteristics which define the
role of geological factor in occurrence of dynamic
phenomena in mine entries is tectonic stresses. At
its core the natural component of the mechanism of
dynamic phenomena in mine entries, in many res-
pects, is similar to earthquake-generating me-
chanism. The type of dynamic phenomenon is de-
termined by properties of rock mass itself. Neo-tec-
tonic activity within the limits of one or another ter-
ritory plays the determining role in maintenance of
significant level of present tectonic stresses. Ac-
cordingly one of the urgent problems in research
into geological causes for occurrence of geodyna-
mic phenomena in mine entries is prediction of geo-
dynamically active zones. Strictly speaking, idea
to investigate zoning of dynamic phenomena within
the limits of the Donets Coal Basin attracting infor-
mation on neo-tectonic activity is not new (G. A. Kon-
kov, V. S. Vereda, V. A. Privalov et al.). The authors
of this work also hold the opinion on confinedness
of dynamic phenomena in mine entries to dynami-
cally active zones of tectonosphere.
The objective of this work is to consider the main
methodical provisions for identification and some
outcomes of prediction of regional zoning of dynamic
phenomena in mines of the Donets Coal Basin.
The basis for the suggested approach is the equi-
librium-state model of the rotated Earth proposed
by K. F. Tyapkin and called geoisostasy which is
the subject of considerable literature [Tyapkin, 1980].
At present based on the analysis of geoid anoma-
lies [Dovbnich, 2008] algorithms are elaborated for
computation of tectonosphere stress fields caused
by disturbance of equilibrium state. In previously
published works [Dovbnich, Demianets, 2009] it was
shown that geodynamically active zones of tec-
tonosphere manifest themselves in stress anoma-
lies due to disturbance of equilibrium state. First
and foremost, such zones, on the assumption that
stresses acting in them are sufficient, manifest them
as seismically active. Elements which are tectonic
base for seismic generating structures are embo-
died in stresses under consideration.
The working hypothesis in predicting regional
zones for development of dynamic phenomena in
mine entries can be the following statement: regional
zones for development of dynamic phenomena are
defined by degree of deformation processes that
develop in sedimentation mass, which in their turn
are embodied in stress field local component caused
by disturbance of equilibrium state.
In conditions of the Donets Coal Basin asses-
sment of subsurface stressed state caused by dis-
turbance of equilibrium state was made on the ba-
sis of land gravity measurement data of the scale
1: 200,000 and relief digital model.
Based on the computed stresses we generated
prediction layout of regional zones for development of
dynamic phenomena for greater territory of the Do-
nets Coal basin. A detailed comparison of computed
stress fields with gas-dynamic phenomena occurred
during mining of seams m3, l4, l1 and k8 (A. F. Zasyadko
Mine) was made (Figure). At the first stage compari-
son of gas-dynamic phenomena occurred during mi-
ning of seams m3, l4, l1 and k8 with local stresses
computed by land gravity measurement data was
made. The most of phenomena are confined to the
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Comparison layout of gas-dynamic phenomena (A. F. Zasyadko Mine) and local geoisostatic stresses (kPa): a — shear
stresses, b — compression-tensile stresses (1 — gas-dynamic phenomena, 2 — predicted zones of methane accumulation,
3 — tectonic faults).
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anomaly of intense shear stresses. Most zones of
methane accumulation predicted by a set of indepen-
dent techniques are also connected with this anoma-
ly. At the second stage for more detailed analysis of
deformation processes in sedimentation mass within
the limits of mine field analysis of attitude of coal seam
m3 was made. As an outcome we received a layout of
local folding that complicates close monoclinal bed-
ding of this seam and represents difference of the seam
surface and its approximating surface which is poly-
nomial of third order. Comparing a layout of local folds
with dynamic phenomena and predicted zones of
methane accumulation we can insist that majority of
them is confined to gradient zone of local folds. The
nature of this zone is closely connected with the pro-
cesses that are embodied in anomalies of intensity of
References
Antsiferov A. V., Golubev A. A., Kanin V. A., Tirkel M. G.,
Zadara G. Z., Uziyuk V. I., Antsiferov V. A., Suyar-
ko V. G. Gas content and methane resources of
coal basins in Ukraine. Vol. 1. — Donetsk: Veber,
2009. — 456 p. (in Russian).
Dovbnich M. M. Disturbance of geoisostasy and tec-
tonoshere stressed state // Geophys. J. — 2008.
— 30���������� ���
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���(in Russian).
local shear stresses. Regularities determined within
the limits of A. F. Zasyadko Mine field confirm as-
sumptions on connection of certain components of
stress field caused by disturbance of equilibrium state
with deformation processes developed in sedimenta-
tion mass and zones of development of dynamic pro-
cesses embodied in it.
The authors are convinced that in investigation
of dynamic phenomena in geologic environment,
independently of their scale — earthquakes, rock
bursts, gas-dynamic phenomena and others — the
most important element is study of all whole fac-
tors, starting from planetary and ending by local
ones, which result in disturbance of equilibrium state
of the planet and cause occurrence of mechanical
stresses in the outer shells of the Earth.
Computer-aided investigation of fault zone deformation
response to low-amplitude dynamic mechanical actions
S. Astafurov, E. Shilko, A. Grigoriev, A. Panchenko, S. Psakhie, 2010
Institute of Strength Physics and Materials Sciences, SB RAS, Tomsk, Russia
astaf@ispms.tsc.ru
Dovbnich M. M., Demianets S. N. Tectonoshere stress
fields caused by distorsion of geoisostasy and
geodynamics of the Azov-Black Sea region // Geo-
phys. J. — 2009. — 31���������� ���
��
��(in
Russian).
Tyapkin K. F. New rotation hypothesis of structure for-
mation and geoisostasy // Geophys. J. — 1980. —
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An important direction in mechanics is investi-
gation of features of mechanical response of geolo-
gical media. An important feature of geomedium is
that its fragments are in complex stressed state.
Relation of internal stresses to strength charac-
teristics of interfacial regions (faults and cracks)
appreciably defines deformation and relaxation ca-
pacity of the mechanism concerned with relative
block displacement. As the shear stress at an ac-
tive block boundary reaches limiting (threshold) va-
lue, its local deformation mode can change qualita-
tively from slow deformation (creeping) to dynamic
deformation (referred to as unsTable sliding). Note
that according to modern notion, acts of dynamic
block sliding are seismogenerating events those
magnitude can reach 6—7. Thus, an urgent task in
geomechanics is to develop methods of estimating
the local stress state at active interfaces of frag-
ments of rock massifs or the earth’s crust. Theo-
retical studies as well as experiments on pres-
tressed rock samples and fragments of plane dis-
continuities in rock massifs revealed an important
effect consisting in deformation response of geo-
medium to dynamic perturbations of stress state in
form of irreversible relative displacement of blocks.
This allowed different authors to formulate the idea
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