Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine
Purpose. Research into the method of strengthening destroyed and fractured rock massif by micro-cement injection during rock driving at Orlovsky mine of “Vostoktsvetmet” LLP. Findings. Massif strengthening method was studied. MasterRoc MP 650 micro-cement produced by BASF Construction Chemicals Ltd...
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irk-123456789-1336282018-06-04T03:04:00Z Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine Krupnik, L. Shaposhnik, Yu. Shaposhnik, S. Konurin, A. Purpose. Research into the method of strengthening destroyed and fractured rock massif by micro-cement injection during rock driving at Orlovsky mine of “Vostoktsvetmet” LLP. Findings. Massif strengthening method was studied. MasterRoc MP 650 micro-cement produced by BASF Construction Chemicals Ltd with addition of 1 – 2% of cement weight of Rheobuild 2000PF was used as cement slurry. The uniformity of the working contour in tunnel faces was observed after the third cycle of works on rocks injection. Unsafe working conditions for packer installation have been revealed. It was recommended to carry out pilot tests of tunneling technology in destroyed and fractured massif using the two-component organic-mineral resin “Blocksil” and long selfwedging packers with injection tubes. Originality. We established peculiarities of implementing technology of strengthening destroyed and fractured rock massif by micro-cement injection. Quantitative indicators of micro-cement content in the injected rock massif were identified. Цель. Исследование способа укрепления разрушенного и сильнотрещиноватого массива горных пород путем применения инъекцирования микроцементами при проходке горных выработок на Орловской шахте ТОО “Востокцветмет”. Результаты. Исследован способ упрочнения массива тампонажным раствором на основе микроцемента Rheocem®650 производства компании BASF с добавкой Rheobuild 2000PF в количестве 1 – 2% от массы цемента. Установлено, что выдерживание контура выработки в проходческих забоях наблюдается после третьего цикла работ по инъекцированию горных пород. Выявлены небезопасные условия работ по установке пакеров. Рекомендовано провести опытно-промышленные испытания технологии проходки горных выработок с применением двухкомпонентной органоминеральной смолы “Блоксил” с использованием саморасклинивающихся длинных пакеров с инъекционными трубками. Научная новизна. Установлены особенности применения технологии укрепления разрушенного и сильнотрещиноватого массива горных пород путем применения инъекцирования микроцементами. Выявлены количественные показатели содержания микроцемента в инъекцированном породном массиве. Мета. Дослідження способу зміцнення зруйнованого та сильнотріщинуватого масиву гірських порід шляхом застосування ін’єкціювання мікроцементами при проходці гірничих виробок на Орлівській шахті ТОВ “Востокцветмет”. Результати. Досліджено спосіб зміцнення масиву тампонажним розчином на основі мікроцемента Rheocem®650 виробництва компанії BASF з добавкою Rheobuild 2000PF у кількості 1 – 2% від маси цементу. Встановлено, що витримування контуру виробки у прохідницьких забоях спостерігається після третього циклу робіт з ін’єкціювання гірських порід. Виявлені небезпечні умови робіт з установки пакерів. Рекомендовано провести дослідно-промислові випробування технології проходки гірничих виробок із застосуванням двокомпонентної органомінеральної смоли “Блоксил” із використанням саморозклинювальних довгих пакерів з ін’єкційними трубками. Наукова новизна. Встановлено особливості застосування технології зміцнення зруйнованого та сильнотріщинуватого масиву гірських порід шляхом застосування ін’єкціювання мікроцементами. Виявлено кількісні показники вмісту мікроцемента в ін’єкційованому породному масиві. 2017 Article Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine / L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A. Konurin // Розробка родовищ: Зб. наук. пр. — 2017. — Т. 11, вип. 1. — С. 87-92. — Бібліогр.: 8 назв. — англ. 2415-3435 DOI: doi.org/10.15407/mining11.01.087 http://dspace.nbuv.gov.ua/handle/123456789/133628 622.267.7 en Розробка родовищ УкрНДМІ НАН України, Інститут геотехнічної механіки НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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DSpace DC |
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English |
| description |
Purpose. Research into the method of strengthening destroyed and fractured rock massif by micro-cement injection during rock driving at Orlovsky mine of “Vostoktsvetmet” LLP.
Findings. Massif strengthening method was studied. MasterRoc MP 650 micro-cement produced by BASF Construction Chemicals Ltd with addition of 1 – 2% of cement weight of Rheobuild 2000PF was used as cement slurry. The uniformity of the working contour in tunnel faces was observed after the third cycle of works on rocks injection. Unsafe working conditions for packer installation have been revealed. It was recommended to carry out pilot tests of tunneling technology in destroyed and fractured massif using the two-component organic-mineral resin “Blocksil” and long selfwedging packers with injection tubes.
Originality. We established peculiarities of implementing technology of strengthening destroyed and fractured rock massif by micro-cement injection. Quantitative indicators of micro-cement content in the injected rock massif were identified. |
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Article |
| author |
Krupnik, L. Shaposhnik, Yu. Shaposhnik, S. Konurin, A. |
| spellingShingle |
Krupnik, L. Shaposhnik, Yu. Shaposhnik, S. Konurin, A. Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine Розробка родовищ |
| author_facet |
Krupnik, L. Shaposhnik, Yu. Shaposhnik, S. Konurin, A. |
| author_sort |
Krupnik, L. |
| title |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| title_short |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| title_full |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| title_fullStr |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| title_full_unstemmed |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| title_sort |
technology of micro-cement injection of destroyed and fractured massif at orlovsky mine |
| publisher |
УкрНДМІ НАН України, Інститут геотехнічної механіки НАН України |
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2017 |
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http://dspace.nbuv.gov.ua/handle/123456789/133628 |
| citation_txt |
Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine / L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A. Konurin // Розробка родовищ: Зб. наук. пр. — 2017. — Т. 11, вип. 1. — С. 87-92. — Бібліогр.: 8 назв. — англ. |
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Розробка родовищ |
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2025-07-09T19:19:45Z |
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2025-07-09T19:19:45Z |
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Founded in
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National Mining
University
Mining of Mineral Deposits
ISSN 2415-3443 (Online) | ISSN 2415-3435 (Print)
Journal homepage http://mining.in.ua
Volume 11 (2017), Issue 1, pp. 87-92
87
UDC 622.267.7 https://doi.org/10.15407/mining11.01.087
TECHNOLOGY OF MICRO-CEMENT INJECTION OF DESTROYED
AND FRACTURED MASSIF AT ORLOVSKY MINE
L. Krupnik1, Yu. Shaposhnik2, S. Shaposhnik3, A. Konurin2*
1Department of Mining and Metallurgical Machinery and Equipment, Kazakh National Research Technical University named after
K.I. Satpayev, Almaty, Republic of Kazakhstan
2Laboratory of Physical and Technical Geotechnology, Institute of Mining named after N.A. Chinakal of the Siberian Branch of the
Russian Academy of Sciences, Novosibirsk, Russia
3Department of Geomechanics and Mining, D. Serikbaev East-Kazakhstan State Technical University, Ust-Kamenogorsk, Republic of
Kazakhstan
*Corresponding author: e-mail anton.konurin@gmail.com, tel. +73832053030
ТЕХНОЛОГІЯ ІН’ЄКЦІЮВАННЯ МІКРОЦЕМЕНТАМИ ЗРУЙНОВАНОГО
ТА СИЛЬНОТРІЩІНУВАТОГО МАСИВУ НА ОРЛІВСЬКІЙ ШАХТІ
Л. Крупник1, Ю. Шапошник2, С. Шапошник3, А. Конурин2*
1Кафедра гірничих і металургійних машин та обладнання, Казахський національний дослідний технічний університет
ім. К.І. Сатпаєва, Алмати, Республіка Казахстан
2Лабораторія фізико-технічних геотехнологій, Інститут гірничої справи ім. М.А. Чинакала Сибірського відділення Російської
академії наук, Новосибірськ, Росія
3Кафедра геомеханіки та гірничої справи, Східно-Казахстанський державний технічний університет ім. Д. Серикбаєва,
Усть-Каменогорськ, Республіка Казахстан
*Відповідальний автор: e-mail anton.konurin@gmail.com, тел. +73832053030
ABSTRACT
Purpose. Research into the method of strengthening destroyed and fractured rock massif by micro-cement injection
during rock driving at Orlovsky mine of “Vostoktsvetmet” LLP.
Methods. In situ researches of massif strengthening by cement slurry were performed. Monitoring of injection works
implementation was carried out by control tests of reinforced rock cores. Phase composition of core samples (crushed
probe) was defined on the X-ray diffractometer. Method of raster electron microscopy with energy dispersive micro-
analysis was used to determine the surface morphology and local elemental analysis of core samples. The material
and labor costs related to works on strengthening of rock massif were calculated.
Findings. Massif strengthening method was studied. MasterRoc MP 650 micro-cement produced by BASF Con-
struction Chemicals Ltd with addition of 1 – 2% of cement weight of Rheobuild 2000PF was used as cement slurry.
The uniformity of the working contour in tunnel faces was observed after the third cycle of works on rocks injection.
Unsafe working conditions for packer installation have been revealed. It was recommended to carry out pilot tests of
tunneling technology in destroyed and fractured massif using the two-component organic-mineral resin “Blocksil”
and long selfwedging packers with injection tubes.
Originality. We established peculiarities of implementing technology of strengthening destroyed and fractured rock massif
by micro-cement injection. Quantitative indicators of micro-cement content in the injected rock massif were identified.
Practical implications. Technology of strengthening destroyed and fractured rock massif by micro-cement injection
was developed and tested at Orlovsky mine.
Keywords: technology of massif injection, micro-cement, packers with injection tubes, place driving, rock massif stability
1. INTRODUCTION
Exploitation of Orlovsky deposit is characterized by
increasingly complex geological conditions, as the grow-
ing depth of the deposit development leads to the appear-
ance of numerous locations of stress concentration,
where dynamic forces cause local fall out and destruction
of rocks. As the experience of mining companies shows,
injection of such bonding compositions as synthetic res-
ins or similar substances into the rock massif allows to
increase the resistance of the massif to tensile stress.
Static and dynamic loads cause the appearance of a more
L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A.Konurin. (2017). Mining of Mineral Deposits, 11(1), 87-92
88
uniform stress field due to cracks filling in different di-
rections and systems. There is a gradual concreting of a
massif in the marginal fractured zone of inelastic defor-
mation, and deblocking of the massif and its sections. In
addition, the number of characteristic points where a
massif is in linear or plane stress, reduces, i.e., the num-
ber of stress locations diminishes (Butenko, Kara, Salni-
kov, & Pihovich, 1978; Kiziyarov, 2004; Kiziyarov,
2012; Klimchuk, 2007; Feofanov, 2009).
Basic requirements for the injection works on
strengthening rocks are given in “Rules of industrial
safety...” (Pravila obespecheniya …, 2014).
2. METHODOLOGY
Injection into the rock massif was conducted at Orlov-
sky mine in the access to the 12th layer of 12 C block,
12 horizon, and in the collecting airway of 15th horizon
during the process of mining in the abandoned and frac-
tured rock massif.
Technology of massif injection in Orlovsky mine
conditions is as follows. Holes 41 – 43 mm in diameter
were drilled by rotary perforators in the working of
12.8 m2 section on the mesh spacing 0.5 m. 19 holes of
3 m depth were drilled on the top and sides of the work-
ing in one stope (Fig. 1). In total, 4 cycles of injections
were carried out in the collecting airway, and 8 cycles
were carried out in the access to the 12th layer.
(a)
(b)
Figure 1. The scheme of holes drilling for massif injection in
Orlovsky mine conditions: (a) longitudinal section;
(b) cross-section
Heading advance did not exceed 1.2 – 1.5 m for 3 m
deep injection holes drilled at the angle of 23°. The
distance between the rows of injection holes did not
exceed 1.5 m.
In total, 93 holes were drilled in the face of the col-
lecting airway for injection of rock massif by micro-
cement, while solution oozing through cracks was ob-
served in 67 boreholes. 108 holes were drilled in the face
of the access to the 12th layer for rock massif injection,
oozing of micro-cement through cracks was observed in
26 boreholes. The distance from the ends of the hole to
the design contour of the working was 1.0 m. The radius
of the solution spreading was 0.56 m with the coefficient
of fractured rock massif 0.1 and the superficial inclined
injection. Each hole was thoroughly washed and flushed
after its drilling. Metal expanding valvular injector
(“packer”) was installed into the drilled hole. Tamping
was performed in two stages: operating tamping and test
tamping. Operating tamping was carried out by injection
of the solution under the working pressure of 5.5 MPa in
the operating boreholes. Test tamping was carried out by
the flow of injection solution through the test boreholes
under the working pressure up to 6.5 MPa. The operating
and test boreholes were distributed along the perimeter of
the working in a next but one manner, i.e. the first hole
is operating, the 2nd hole is being tested, the 3rd hole is
operating, the 4th hole is being tested, etc.
The solution was being injected up to the moment
when the absorption of the solution stopped at a prede-
termined operating pressure, or when the solution ap-
peared or leaked through the test holes. Each hole was
kept under specified pressure for 5 minutes. In the case
of plugging solution appearance in the test boreholes, the
packer was installed there, and then, after operation
stage, injection of the second stage of tamping (test
tamping) was made. The solution was injected with max-
imum intensity in order to fill the caves in the shortest
possible time.
MasterRoc MP 650 micro-cement of BASF company
was used as the plugging solution with the addition of
Rheobuild 2000PF (1 – 2% of cement mass). MasterRoc
MP 650 micro-cement is made on the basis of portland
cement with a low content of threecalcium aluminate
(0 – 2.5%) and a low content of alkali (0.3 – 0.5%) by
way of its additional grinding to the fineness of
6500 cm2/g. It does not contain particles larger than
40 microns, and no less than 95% of its mass is com-
posed of particles smaller than 16 microns. Water-
cement ratio (by weight) is in the range 0.5 – 1.0.
Consumption of materials by one hole is:
– MasterRoc MP 650 micro-cement – 12.7 – 10.41 kg;
– Rheobuild 2000PF additive – 0.1568 – 0.1915 kg;
– solution consumption by a hole 3 m long – 13.8 – 16.9 l.
The values of strength of unalloyed cement slurries
according to measurements of BASF Construction
Chemicals (Switzerland) Ltd are shown in Figure 2.
Departing from (STO NOSTROY 2.3.18-2011, 2011),
monitoring of injection works must be carried out by
control tests to determine the results of massif strength-
ening by injection, in particular, by testing core samples
of reinforced rock, as well as by assessment of conformi-
ty of the obtained results with the design requirements.
The regulations (STO 17466563-001-2011, 2011) point
out that the number of test boreholes must constitute
approximately 3 – 5% of the total number of injection
holes, in our case – within the range of 3 – 5 items.
L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A.Konurin. (2017). Mining of Mineral Deposits, 11(1), 87-92
89
Figure 2. Characteristic dependence of strength development
of undoped MasterRoc MP 650 slurries for a water-
cement ratio – 0.5:1.0 (1 – W/C = 0.5; 2 – W/C = 1.0)
3. RESULTS AND DISCUSSION
Coring was made from the boreholes drilled within
the interval of the third cycle of injection works (1st – in
the southern edge; 2nd – in the top, 3rd – in the northern
edge in the rocks area injection) for the purpose of a
representative and objective investigation of reinforced
rock massif in the collecting airway drift of 15th horizon
of “Novaia” deposit of North ore body. The results of
compressive strength determination of the drilled core
samples are shown in Table 1.
Table 1. Compressive strength of the drilled core samples at
the top and the edges of the airway drift of 15th horizon
Number
of a hole
The cut-off
sampling, m
Compressive strength
of the core samples, MPa
1 (in the
southern edge)
1 – 2 59.61
2 – 3 65.79
2 (at the top)
0 – 1 55.33
1 – 2 45.98
3 (in the
northern edge)
1 – 2 61.86
2 – 3 41.88
The following conclusions can be drawn from the da-
ta presented in Table 1. The strength of the destroyed
massif of host rocks at the top and the northern edge of
the airway drift of 15th horizon decreases as the distance
from the rock injection area increases (respectively, by
17 and 32%). Higher compressive strength of the drilled
core samples is observed close to the contour of the air-
way drift, which indicates its hardening by micro-
cement. However, in the southern edge of the airway
drift, the opposite is true. Compressive strength of the
drilled core is increased by 10% at a distance from the
contour of working.
This can be explained by the fact that the host rocks
in the southern edge were less fractured, thus the massif
received a smaller volume of the plugging solution closer
to the working contour and a bigger volume of the plug-
ging solution was injected at a distance of 2.5 – 3.0 m
from the contour of working.
The drilled core from the rock massif was ground on a
vibrating grinder to 0.02 mm fineness (preliminary crush-
ing was carried out on jaw and roll crushers) in order to
identify quantitative indicators of micro-cement content in
the injected rock massif. Output weight of the sample was
up to 250 g, the phase composition of micro-cement was
identified and its content in the crushed material of the
drilled core was determined. Phase composition of the
core samples (crushed probe) was defined on the X-ray
diffractometer. X-ray diffraction method for the X-ray
diffractometer (X’Pert PRO MPD) was used to conduct
semi-quantitative determination of the phase composition.
The chemical composition of micro-cement is as fol-
lows (the content of the main components, %): SiO2 –
17.92%; Al2O3 – 5.93%; CaO – 63.84%; MgO – 4.24%;
P2O3 – 0.025%; S – 0.79%; H2O – 0.63%; others – 6.63%.
Taking into account the results of phase composition, it
was revealed that the content of Ca(OН)2 and SiO2 in the
southern edge of the drift (borehole No 1) is much higher
than that in the northern edge and the top (40, 6 and 6%
respectively).The data related to the phase composition
are in good agreement with the core material strength
characteristics, in particular, the southern edge of work-
ing (borehole No 1) has higher strength characteristics at
a distance of 2.5 – 3.0 m.
The method of raster electron microscopy with energy
dispersive microanalysis done with the help of the scan-
ning electron microscope JSM-6390LV was used to
determine the surface morphology and local elemental
analysis of the core samples. The resulting overview
photographs of the prepared samples surface (≤ × 3000)
with the points for determination of the elemental com-
position are shown in Figure 3.
Cracks show as white, gray or black color in the pic-
tures. The massif of host rocks has a dark color. The
content of Ca along the cracks in sample 1 – 3 – 1 was
0.2 and 6.17% compared with the content of Ca in the
massif of host rocks 0.2%; in sample 1 – 3 – 2 it was
0.32 and 0.25%; in sample 2 – 3 – 1 it was 0.22 and
0.1%; in sample 3 – 3 – 1 it was 0.12% and 0.13%.
Thus, the content of Ca in the cracks is several times
higher than that in host rocks, which is likely to testify to
the higher content of micro-cement in the cracks of the
rock massif. The cost of materials for the works on the
preliminary hardening of rocks* is shown in Table 2.
Table 2. The cost of materials used in the preliminary rocks strengthening
Materials Unit cost of materials, taking into account the value added tax, U.S. dollars
Micro-cement Master Roc MP 650, kg 1.53
Plasticizer Master Rheobuild 2000PF, kg 4.45
Expanding packer, pcs. 39.5
Pressure hose Ø 25 mm, m 11.8
High pressure hose Ø 10 – 12 mm, m 7.8
Gates, respectively, Ø 50, 25 and 15 mm, pcs. 43.7; 21.5; 15.5
Cable KG 3×16-1×6, m 3.2
Cable KG 3×4-1×1,5, m 1.4
Lighting apparatus AOSH-5, pcs. 2637.6
LED spotlight, pcs. 446.8
*Does not include the cost of purchasing or renting GP-40 mine performance injection pump
L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A.Konurin. (2017). Mining of Mineral Deposits, 11(1), 87-92
90
(a)
Number of
spectrum
Designation of elements
О Mg Al Si P S K Ca Ti Fe La Ce Nd
1 45.83 2.71 2.98 20.37 4.35 0.52 0.47 0.32 0.90 2.05 5.78 10.13 3.59
2 39.25 2.50 2.62 17.46 — 18.62 0.49 0.00 — 19.06 — — —
3 58.05 2.38 2.86 14.21 — — 0.36 0.25 20.71 1.18 — — —
4 56.65 3.44 3.43 33.79 — — 0.44 — 0.44 1.80 — — —
Max 58.05 3.44 3.43 33.79 4.35 18.62 0.49 0.32 20.71 19.06 5.78 10.13 3.59
Min 39.25 2.38 2.62 14.21 4.35 0.52 0.36 0.00 0.44 1.18 5.78 10.13 3.59
(b)
Number of spectrum
Designation of elements
О Mg Al Si S Fe
1 43.90 5.90 3.76 22.79 10.06 13.59
2 52.80 9.11 5.29 28.60 — 4.19
Max 52.80 9.11 5.29 28.60 10.06 13.59
Min 43.90 5.90 3.76 22.79 10.06 4.19
(c)
Number of
spectrum
Designation of elements
О Mg Al Si P Ca Ti Fe La Ce Nd
1 37.81 6.04 3.62 15.31 5.04 0.32 0.22 2.07 9.65 16.18 3.73
2 53.28 5.80 5.83 23.80 0.12 2.59 0.18 3.85 1.37 2.59 0.59
3 57.12 7.94 4.85 27.36 — — — 2.72 — — —
Max 57.12 7.94 5.83 27.36 5.04 2.59 0.22 3.85 9.65 16.18 3.73
Min 37.81 5.80 3.62 15.31 0.12 0.32 0.18 2.07 1.37 2.59 0.59
Figure 3. Elemental composition of the core samples in the photographs of the prepared sample surface (all results are in wt.%):
(a) the elemental composition of the core samples 1.2 of the borehole No 1 (southern edge) in a cut of 3 m; (b) the same
for the borehole No 2 (the top); (c) the same for the borehole No 3 (the northern edge)
L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A.Konurin. (2017). Mining of Mineral Deposits, 11(1), 87-92
91
The calculation of the material and labor costs in-
volved in the work on strengthening the rock massif at
Orlovsky mine based on the estimated base of Kazakh-
stan showed that the total cost of 15 linear meters (lm)
amounted to 26.3 thousand U.S. dollars or 1.75 thousand
U.S. dollars/lm.
4. CONCLUSIONS
According to the results of pilot tests, the developed
massif injection technology for Orlovsky mine proved
feasible, although some disadvantages of this technology
were also observed.
The analysis conducted by the authors of the paper
after the injection of massif at Orlovsky mine showed
that cement slurry was gaining the necessary strength
only after 8 – 12 hours, although, according to the tech-
nical characteristics, cement slurry setting process should
begin within the range of 1.0 – 1.5 hours and take up to
2.5 hours. However, cement slurry did not gain the nec-
essary strength in 2 – 3 hours, and remained pliable.
Adherence to the design cross section of a working con-
tour in tunnel faces was observed only after the third
cycle of rocks injection.
The research revealed unsafe working conditions for
packers installation. Packers are short and, therefore,
they had to be installed from the untimbered space in the
working face. Therefore, it is recommended to use long
selfwedging packers with “Techno DSI” LLC (Kemero-
vo) injection tubes. This packer design is disposable. A
sealer is installed in an injection hole at different depths
depending on a fracture of marginal massif (typically 1.0
to 1.5 m). The packers can be installed from a safe place,
as in this case, holes are drilled through wood in the top
and edges of a working. This selfwedging packers may
be installed in the middle of the hole, which allows to
reduce a flow of solution through the working face and to
achieve a more complete injection of fractured rocks.
It is also advisable to carry out pilot tests of the tech-
nology of tunneling in destroyed and fractured massif
using two-component organic-resin “Blocksil” and two-
component polyurethane resin “Blokpur” produced by
“Techno DSI” LLC.
ACKNOWLEDGEMENTS
The authors express their sincere gratitude to engi-
neering and technical personnel of Orlovsky mine of
“Vostoktsvetmet” LLP for assistance in organizing and
conducting field observations in mines.
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ABSTRACT (IN UKRAINIAN)
Мета. Дослідження способу зміцнення зруйнованого та сильнотріщинуватого масиву гірських порід шля-
хом застосування ін’єкціювання мікроцементами при проходці гірничих виробок на Орлівській шахті ТОВ
“Востокцветмет”.
Методика. Виконано натурні дослідження щодо зміцнення масиву тампонажним розчином. Проведено конт-
роль виконання ін’єкційних робіт шляхом контрольних випробувань кернів укріпленого ґрунту. Визначено фазо-
вий склад зразків керна на рентгенівському дифрактометрі. Вивчена морфологія поверхні й виконаний локальний
елементний аналіз зразків керна методом растрової електронної мікроскопії з енергодисперсійним мікроаналізом.
Виконано розрахунок матеріально-трудових витрат на виконання робіт по зміцненню масиву гірських порід.
Результати. Досліджено спосіб зміцнення масиву тампонажним розчином на основі мікроцемента Rheocem®650
виробництва компанії BASF з добавкою Rheobuild 2000PF у кількості 1 – 2% від маси цементу. Встановлено, що
витримування контуру виробки у прохідницьких забоях спостерігається після третього циклу робіт з ін’єкціювання
гірських порід. Виявлені небезпечні умови робіт з установки пакерів. Рекомендовано провести дослідно-промислові
випробування технології проходки гірничих виробок із застосуванням двокомпонентної органомінеральної смоли
“Блоксил” із використанням саморозклинювальних довгих пакерів з ін’єкційними трубками.
Наукова новизна. Встановлено особливості застосування технології зміцнення зруйнованого та сильнотрі-
щинуватого масиву гірських порід шляхом застосування ін’єкціювання мікроцементами. Виявлено кількісні
показники вмісту мікроцемента в ін’єкційованому породному масиві.
Практична значимість. Розроблена й випробувана технологія зміцнення зруйнованого та сильнотріщину-
ватого масиву гірських порід ін’єкціюванням мікроцементами для умов Орлівської шахти.
Ключові слова: технологія ін’єкціювання масиву, мікроцемент, пакери з ін’єкційними трубками, проходка
гірничих виробок, стійкість масиву гірських порід
L. Krupnik, Yu. Shaposhnik, S. Shaposhnik, A.Konurin. (2017). Mining of Mineral Deposits, 11(1), 87-92
92
ABSTRACT (IN RUSSIAN)
Цель. Исследование способа укрепления разрушенного и сильнотрещиноватого массива горных пород
путем применения инъекцирования микроцементами при проходке горных выработок на Орловской шахте
ТОО “Востокцветмет”.
Методика. Выполнены натурные исследования по укреплению массива тампонажным раствором. Проведен
контроль выполнения инъекционных работ путем контрольных испытаний кернов укрепленного грунта. Опре-
делен фазовый состав образцов керна на рентгеновском дифрактометре. Изучена морфология поверхности и
выполнен локальный элементный анализ образцов керна методом растровой электронной микроскопии с энер-
годисперсионным микроанализом. Выполнен расчет материально-трудовых затрат на выполнение работ по
упрочнению массива горных пород.
Результаты. Исследован способ упрочнения массива тампонажным раствором на основе микроцемента
Rheocem®650 производства компании BASF с добавкой Rheobuild 2000PF в количестве 1 – 2% от массы цемен-
та. Установлено, что выдерживание контура выработки в проходческих забоях наблюдается после третьего
цикла работ по инъекцированию горных пород. Выявлены небезопасные условия работ по установке пакеров.
Рекомендовано провести опытно-промышленные испытания технологии проходки горных выработок с приме-
нением двухкомпонентной органоминеральной смолы “Блоксил” с использованием саморасклинивающихся
длинных пакеров с инъекционными трубками.
Научная новизна. Установлены особенности применения технологии укрепления разрушенного и сильно-
трещиноватого массива горных пород путем применения инъекцирования микроцементами. Выявлены количе-
ственные показатели содержания микроцемента в инъекцированном породном массиве.
Практическая значимость. Разработана и испытана технология упрочнения разрушенного и сильнотрещи-
новатого массива горных пород инъекцированием микроцементами для условий Орловской шахты.
Ключевые слова: технология инъекцирования массива, микроцемент, пакеры с инъекционными трубками,
проходка горных выработок, устойчивость массива горных пород
ARTICLE INFO
Received: 07 February 2017
Accepted: 28 February 2017
Available online: 30 March 2017
ABOUT AUTHORS
Leonid Krupnik, Doctor of Technical Sciences, Professor of the Department of Mining and Metallurgical Machinery
and Equipment, Kazakh National Research Technical University named after K.I. Satpayev, 22 Satpayev St, 213,
050013, Almaty, Republic of Kazakhstan. E-mail: leonkr38@mail.ru
Yuriy Shaposhnik, Doctor of Technical Sciences, Senior Researcher of the Laboratory of Physical and Technical
Geotechnology, Institute of Mining named after N.A. Chinakal of the Siberian Branch of the Russian Academy of
Sciences, 54 Krasny Ave., 630091, Novosibirsk, Russia. E-mail: shaposhnikyury@mail.ru
Sergey Shaposhnik, Doctor of Technical Sciences, Professor of the Department of Geomechanics and Mining,
D. Serikbaev East-Kazakhstan State Technical University, 69 Protozanov St, 70004, Ust-Kamenogorsk, Republic of
Kazakhstan. E-mail: lvg.nmu@mail.ru
Anton Konurin, Candidate of Technical Sciences, Senior Researcher of the Laboratory of Physical and Technical
Geotechnology, Institute of Mining named after N.A. Chinakal of the Siberian Branch of the Russian Academy of
Sciences, 54 Krasny Ave., 630091, Novosibirsk, Russia. E-mail: anton.konurin@gmail.com
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