Nasirov U. F. - Tas hken t Stat e Technical University, Tashkent, the RepuЬ\ic ofUzbekistan. 
E-mail: unasirov@yande x.ru Тukhtashev А. В. - Navoiy State Mining lnst itute, Navo iy, the
RepuЬ\ic of Uzbekistan. E-mail: a.tukhtashev79 @mail.ru Ochilov Sh. А. - Tashkent State Technical
University, Tashkent , the RepuЬ\ic ofUzbekistan. E-mail: o.s hu This email address is being protected from spambots. You need JavaScript enabled to view it. Ravshanova М.
Кh. - Navoiy State Mining lnstitute, Navoiy, the RepuЬ\ic of Uzbekistan. E-mai l:
This email address is being protected from spambots. You need JavaScript enabled to view it.

The article examines the ways of controlling the degree of rock crushing and the destinations,
which allow influencing mechanical effect of rock massif crushing. Kinetic energy has been
determined, which accumulates under the percussive shifl within the volume unit of rock and is
consumed оп the work of breaking. Effective radius of cylindrical and spherical charges at high
benches has been determined. Theoretical investigations determined, that the size of the largest
lump of exploded rock mass under the explosion of douЫe-contiguous downhole charges of explosive а!
high benches is directly proportional to the line of least resistance, symmetry coefficients of
cylindrical charges, and energetic characteristics of explosives; and it is inversely proportional
to the density of loading, charge density, and the circle diameter of douЫe­ contiguous explosive
charges.

Кеу words: drilling and Ыasting operations; high bench; methods of Ыasti ng; douЫe-contiguous
downhole charges; degree of crushing; effective radius; spherical charge; cylindrical charge; line
of least resistanc;edensity of loading; charge density; charge diameter.

REFERENCES

1. Norov lu. D., Nasirov U. F., B ibik 1. Р., Norov Zh. А., Normatova М. Zh.
[Blasting operation s in complex hydrogeological condi tio ns]. Gornyi zhurnal - Mining
Journal, 2013, по. 8, рр. 30- 31. (Tn Russ.)

2. Norov lu. D., Shemetov Р. А., Zairov Sh. Sh., Tukhtashev А. В. Sovershenstvovanie metodov
upravleniia droЫeniem gornykh porod vzryvom: monografiia [Monograph "T he development of the
methods of controlling rock crushing Ьу means ofЬ\ast"]. Bukhara, Bukhoro РuЫ., 2011. 200 р.

3. Shemetov Р. А., Nasirov U. F., Ochilov Sh. А. [Analysis of the technologi cal sc heme of
development of mining in " Muruntau" орел pit]. l zvestiya vysshikh uchebnykh zavedenii.
Gornyi zhurnal - News of the Higher ln stitutions. MiningJournal, 2015, по. 1 , рр. 23- 27.
(Tn Russ.)

4. Bibik 1. Р., Uma rov F. la., Ochilov Sh. А. [Resource-saving technolog ies of rock Ыasting
crushing with downhole charges in deep орел pits]. Sb. nauch. st. mezhdunar. nauch.-prakt.
konf. «Jnnovatsiia-2014» [Proc. of Tnt. Sci. and Pract. Conf. "lnnovat ions- 2014"]. Tashkent,
2014, рр. 22- 24. (ln Russ.)

5. Umarov F. Та. Tekhnologicheskie resheniia resursosberegaiushchego osvoeniia
mestorozhdenii: monografiia

[Monograph "Technological solutions of resource-saving exploitation of deposits"]. Bukhara, Bukhoro
РuЫ., 2016. 381 р.

6. Umarov F. Та. [Effects offactors affecting the stabili ty ofthe edges of pits]. fzvestiya
vysshikh uchebnykh zavedenii. Gornyi zhurnal - News ofthe Higher lnstitutions. Mining Journal,
2014, no. 1, рр. 85- 92. (ln Russ.)

7. Nasirov U. F., Umarov F. Та. [ Calculation of contiguous downhole charges under preli
minary fissure generation of deep open pit slopes]. Gornyi vestnik Uzbekistana - Mining
Bulletin of Uzbekistan , 2016, по. 2, рр. 16- 20. (l n Russ.)

8. Nasirov U. F. [Development of gas ЬuЬЬ\е in artificially sunken l ine ar pin-point Ыasting ch
arge under the gener ation of elonga ted holes]. Gornyi informatsionno-analiticheskii
blulleten' (nauchno-tekhniches kii zhurnal) - Mining lnformational and Analytical Bulletin
(scientific and technical journal), 2010, по. 6, рр. 50-52. (Tn Russ.)

Vikulov V. M., Kornilkov M. V., Polovov B. D. – The Ural State Mining University, Ekaterinburg, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Imitation modeling program algorithm is in the basis of foundation ditch fencing wall anchor support construction
calculation; the program fulfi lls quantitative estimation of reliability and risk of underground facilities construction.
The main estimation method is simulation testing according to Monte Carlo method, which is realized in the mode of automated
application program and test fi les in QBasic programming language. On this basis, machine oriented procedure of fl exible
retaining constructions design has been worked out, which helps to make effi cient probability analysis of loads upon the
bearing construction, sliding surface locations and anchor supporting nodes stability. Risk degree determination when
designing stable fl exible retaining constructions of foundation ditches for urban underground constructions which are built
with opencast mining method is extremely topical issue. Evident way of the said problem solution is formalization of riskanalysis, which includes the development of geotechnical situation modeling method by average values of input data.
Key words: anchor support; ascending anchor; simulation test; model; sliding line; risk degree; soil pressure.
40 «Известия вузов. Горный журнал», № 4, 2017 ISSN 0536-1028
REFERENCES
1. Polovov B. D., Kornilkov M. V., Poddubnyi V. V. Obosnovanie inzhenernykh reshenii po effektivnomu osvoeniiu
podzemnogo prostranstva krupneishikh i krupnykh gorodov: nauch. monografiia [Substantiation of engineering solution
over underground space efficient development in large cities and metropolises: sci. monograph]. Ekaterinburg,
UrSMU Publ., 2008. 377 p.
2. Polovov B. D., Valiev N. G., Kokarev K. V. [Geomechanical analysis of mining units on basis of nonparametric
statistics methods]. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal – News of the Higher Institutions. Mining
Journal, 2016, no. 1, pp. 66–74. (In Russ.)
3. Vikulov V. M., Kornilkov M. V., Zoteev O. V. [Foundation pit anchor support design efficiency improvement under
the construction of subsoil constructions]. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal – News of the Higher
Institutions. Mining Journal, 2017, no. 1, pp. 62–70. (In Russ.)

Dyrdin V. V., Fofanov A. A., Smirnov V. G., Diagileva A. V. – Kuzbass State Technical University, Kemerovo,
the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Deformations of the main roof near the face of stope are examined with the account of torque, which develops because of a piece
of the main roof hanging over the mined-out area and affecting the marginal zone of the coal bed and enclosing rocks. The shape
of curvature of the piece of the main roof hanging over the mined-out area is calculated, together with the profile of the main roof
deformation in the marginal zone of the coal bed in front of the face of stope. It is shown that in front of the zone of stresses
concentration there may appear the zone, where the shifts of the main roof are directed upward, i.e. they are opposite to the shifts
of the hanging end of the main roof, which is determined by the torque of forces. There appears the zone of unloading, where
together with the other factors, such as gas content and local disturbance of a coal bed, the generation of “gas pocket” is
possible – the zone with increased possibility of hazardous gas-dynamic phenomena development. The present estimations
allow detecting the location of the given area, as well as the size of the additional unloading within it.
Key words: methane of coal beds; difficult-to-control roof; modeling; elastic deformations; gas-dynamic phenomena; gas
content; marginal zone.
REFERENCES
1. Glushikhin F. P. Trudnoupravliaemye krovli v ochistnykh zaboiakh [Difficult-to-control roofs in stopes]. Moscow,
Nedra Publ., 1974. 192 p.
2. Balashova T. A. Issledovanie vliianiia dinamicheskikh nagruzok na intensifikatsiiu desorbtsii metana: avtoref.
dis. … kand. tekhn. nauk [Investigation of the influence of dynamic loads on the intensification of methane desorption.
Cand. eng. sci. … abs. of diss.]. Kemerovo, 1998. 22 p.
3. Dyrdin V. V., Smirnov V. G., Fofanov A. A. [The influence of torque of the main roof hanging piece on the marginal
zone of the coal bed]. Prirodnye i intellektual'nye resursy Sibiri: mater. XVI Mezhdun. nauch.-prakt. konf. [Proc. 16th
Int. Research-to-Pract. Conf. “Natural and intellectual resources of the Siberia”]. Kemerovo, 2016.
4. Landau L. D., Lifshits E. M. Teoriia uprugosti [Elasticity theory]. Moscow, Nauka Publ., 1965. 204 p.
5. Glushikhin F. P., Kuznetsov G. N., Shkliarskii M. F., and others. Modelirovanie v geomekhanike [Modeling in
geomechanics]. Moscow, Nedra Publ., 1991. 240 p.
6. Fofanov A. A., Dyrdin V. V. [Regarding the problem of the main roof rock oscillation frequency under secondary roof
cavings]. Vestnik KuzGTU – The News of Kuzbass State Technical University, 2012, no. 3, pp. 9–12. (In Russ.)

Kolesnikova L. A., Filin A. E. – National University of Science and Technology, Moscow, the Russian Federation.
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Current industrial development presupposes application of high-capacity machines, equipment, workflows control and
tracking systems, workflow parameters control; it raises the portion of psychological impacts on workers and requires the
realization of human higher psychical functions – memory, thinking, attention, fast error-free decision making, right
reactions on any kind of information. At modern mining enterprises more than half of all emergencies happens because
of workers wrong actions, which are connected with failure of psychophysiological regularities of their activity and
behavior. The article examines psychological aspects of human safety in the sphere of labour protection; main reasons
for emergencies in mining industry are revealed, which lead to human wrong actions; the problems of collective
psychology, inactive and non-critical thinking and their influence on the quantity of emergencies at mining enterprises in
the Russian Federation.
Key words: labour protection; human safety; psychological stability; emergency; safety rules observance.
32 «Известия вузов. Горный журнал», № 4, 2017 ISSN 0536-1028
REFERENCES
1. Bezopasnost' zhiznedeiatel'nosti: ucheb. posobie. Pod obshch. red. N. K. Demika [School book “Civil protection”.
Edited by N. K. Demik]. Moscow, REA Publ., 2007. 118 p.
2. Filin A. E. [Psychology as a means of reducing risks of industrial traumatism]. Elektronnyi nauchnyi zhurnal –
Electronic Scientific Journal, 2016, no. 9(12), pp. 279–282. (In Russ.)
3. Filin A. E. [Prospects of protection in mining industry]. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal – News
of the Higher Institutions. Mining Journal, 2016, no. 5, pp. 31–33. (In Russ.)
4. Kolesnikova L. A. [Analysis of basic methods of industrial labour safety estimation]. Nauka i obrazovanie: problemy
i strategii razvitiia – Science and Education: Problems and Development Strategies, 2015, no. 1(1),
pp. 137–139. (In Russ.)
5. Maslova O. V., Oleinikov B. I., Kolesnikova L. A. [Catastrophes: social-economic effects]. Aktual'nye napravleniia
nauchnykh issledovanii XXI veka: teoriia i praktika [Current directions in scientific research in the 21st century: theory
and practice]. 2015, vol. 3, no. 6(17), pp. 48–54. (In Russ.)