ANALYSIS OF FACTORS IMPACTING ON MECHANISM OF SHOCK INTERACTION BETWEEN ELASTIC LINING AND ROCK MASS

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Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 111

UDC 622.002.5:621.8.031.4

Sukharyev V.V., Ph.D. (Tech.) (IGTM NAS of Ukraine)

Levchenko P.V. (IGTM NAS of Ukraine),

Beliushin D.V. (SHEI “NMU”)

Abstract. Purpose of this work was to determine factors and methods for adjusting protective properties of elastic lining and to study shock interaction between rock mass and lined work surface.

Previous studies shown that the main factors which impacted on protective properties of the lining were the lining thickness and hardness and shock force, however, the studies did not take into account a combined effect of a changed area of rubber lining or bulk modulus. Experiments were conducted on a laboratory stand, which simulated a vibratory feeder box in 1:4 ratio. The experiments shown interdependence between indentation depth, shock duration, shock stress and rubber area and hardness. It was also determined that use of 3D compression effect could reduce stress of working surfaces under the protection by 20-25%. The findings can be applied in designing new elastic liners with better protective properties and reduce the lining cost.

Keywords: elastic lining, impact, stress.

References:

1. Goldsmit, V. (1965), Udar. Teoriya i fizicheskiye svoystva soudariayemykh tel [The theory and the physical properties of the colliding bodies], Gosstroyizdat, Moscow, Russia.

2. Panovko, Ya.G. (1976), Osnovy prikladnoy teorii kolebaniy i udara [Fundamentals of applied theory of vibrations and impact], Mashinostroenie, Leningrad, Russia.

3. Poturayev, V.N., Dyrda, V.I. ahd Naduty, V.P. (1974), Rezina v gornom dele [Rubber is on mountain business], Nedra, Moscow, Russia.

4. Naduty, V.P., Sukharyev, V.V. and Beliushin, D.V. (2012), "Research of the tense state of working organ of oscillation machine with a protective layer at the shock loading", Vibratsi v tekhnitsi ta tekhnolohiyakh, no. 4, pp. 71-75.

About the author:

Sukharyev Vitaliy Vitalievich, Candidate of Technical Sciences (Rh.D), Researcher in Department of Mechanics of Mineral Processing Machines and Processes, M.C. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Levchenko Pavel Vladimirovich, Junior Researcher in Department of Mechanics of Mineral Processing Machines and Processes, M.C. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Beliushin Dmitriy Vladimirovich, Doctoral Student of the State Higher Educational Institution “National Mining University”, SHEI “NMU”, Zaporozhye iron-ore combine, designer, Dnepropetrovsk, Ukraine.

 

 

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