STUDY OF SHOCK WAVES DISTRIBUTION IN POROUS MEDIUMS

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Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 111

UDC 622.236.4.001.1

Kurinnoy V.P., D.Sc. (Tech.), Associate Professor (SHEI «NMU»)

Garkusha I.P., Ph.D. (Phis-Math.), Professor (SHEI «NMU»)

Prohorets L.V. (IGTM NAS of Ukraine)

Abstract. When destructing the rocks by explosion, it is necessary to know shock wave pressure and parameters. In the process of this study the authors expressed formulas for calculating speeds of shock wave and matter stream behind the front of the shock wave and volume density of kinetic and potential energies depending on pressure. As an example, speed of shock wave and matter stream behind the front of the shock wave are calculated depending on pressure of sands with various porosity and regrinding rocks. It is assumed that  air volume in the pores behind the front of shock wave can be neglected. 

The authors present formulas, which specify coefficients in the Teta equation for multicomponent condensed environments with the Teta constant expressed for each component. Formulas are also proposed for evaluating speed of stress wave in the multicomponent environment consisting of condensed matters at high pressures.

Keywords: shock adiabata, coefficients in the Teta equation, multicomponent condensed environment, parameters of shock waves.

References:

1. Garkusha, I.P., Kurinnoy, V.P., Petrenko, V.D. and Nikiforova, V.A. (1999), “About of rocks distraction mechanism in shock wave”, Vysokoenergeticheskaya obrabotka materialov, no. 8, pp. 156-160.

2. Baum, F. A., Orlenko, L. P. and Stanyukovich, K. P. (1975), Fizika vzryva [Physics of explosion], Nauka, Moscow, Russia.

3. Kurinnoy, V.P. (2009), Fіzichnі aspektyruynuvanniagіrskikhporіdvybukhom [Physical aspects of rocks destruction by the explosion], NGU, Dnіpropetrovsk, Ukraine.

4. Bridgmen, P. V. (1948), Novejshie raboty v oblasti vysokih davleniy [The latest work in area of high pressures], IL,  Moscow, Russia.

5. Kurinnoy, V. P. and Garkusha, I.P. (2009), “Substantiation effectiveness of crushing of viscosity medium by the use of blasthole charges of optimum construction”, Materials of XIX International scientific school by nime academic S.A. Hristianovich «Deformation and destruction of materials with defects and dynamic phenomena in mountain breeds and making», pp. 121–124.

6. Pain, H. J. (1976), The physics of vibrations and waves, Imperial college, London, GB.

About the authors:

Kurinnoy Vladimir Pavlovich, Doctor of Technical Sciences (D. Sc), Associate Professor, Professor of Physics Department, State Higher Educational Institution «The National Mining University» of Ukraine (SHEI «NMU» Ukraine), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Garkusha Igor Pavlovich, Candidate of Physics and Mathematics (Ph.D), Professor, Head of Physics Department, State Higher Educational Institution «The National Mining University» of Ukraine (SHEI «NMU» Ukraine), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Prohorets liliya Viktorovna, Junior Researcher of Rock Mechanics Department, M. S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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