Ihor Kratkovskyi, Ernest Yefremov, Kostyantyn Ishchenko, Sergo Khomeriki. X-ray diffraction method application to assess the energy losses on explosive-rock contact under various blasting

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Parent Category: Geo-Technical Mechanics, 2020

Category: Geo-Technical Mechanics, 2020, № 154

Geoteh. meh. 2020, 154, 103-111

https://doi.org/10.1051/e3sconf/202016800051

 

X-RAY DIFFRACTION METHOD APPLICATION TO ASSESS THE ENERGY LOSSES ON EXPLOSIVE-ROCK CONTACT UNDER VARIOUS BLASTING

¹Ihor Kratkovskyi,¹Ernest Yefremov, ¹KostyantynIshchenko, ²Sergo Khomeriki

¹Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, ²Mining Institute named by G. Tsulukidze

Language: English

Abstract. The dissipative energy losses of the explosion on the explosive-rock contact are usually evaluated with comparative analysis of the particle size distribution of finely dispersed fractions (0-100 microns). The more tiny particles contained in the destruction products, the higher there is a level of energy loss during the explosion. Fine dust granulometric characteristics are determined by processing the mass measurements data of the individual smallest particles sizes when decoding microphotographs obtained by a microscope. However due to the chromatic aberrations due the wave nature of light and the optical systems imperfection, it is not possible to reliably estimate the mass and granulometric characteristics particles of micron size. X-ray diffraction method for studying ultrafine rock fracture products makes it possible to estimate the dissipative energy losses on explosive-rock contact based on the reflected X-ray beam total intensity in diffractograms. In order to establish the effectiveness of methods for reducing the level of dissipative energy losses of an explosion, X-ray diffraction patterns of finely dispersed fracture products of rock samples under various conditions of dynamic loading are analyzed (using different charge designs, attenuating the rocks by the action of a surfactant, and the force action of a different gradient stress field).

REFERENCES

1. Petch, N. (1973). Metallographic aspects of destruction. Razrushenie. Moskva: Mir, 1, 375-420

2. Roedder, E. Fluid inclusion evidence for immiscibility in magmatic differentiation. Geochim. Cosmochim. Acta, 56 (1992). https://doi.org/10.1016/0016-7037(92)90113-W

3. Yefremov, E.I. et al. (2010). Sposob upravleniya razmerami zony pereizmelcheniya tverdykh sred pri ikh vzryvnom razrushenii. Suchasni resursoenerhozberigaiuchi tekhnolohii girnychoho vyrobnytsva. Kremenchuk: KDPU, 1, 7-10

4. Yefremov, E.I. et al. (1984). Mekhanica vzryvnogo razrusheniya porod razlichnoy struktury. K.: Naukova dumka

5. Tomson, R., Seitz, F. (1973) The structure of solids. Razrushenie. Moskva: Mir, 1, 15-111

6. Voloshin, O.I. et al. (2017). Metodyka vyznachennya vmistu dioksydu kremniiu v probi vuhilnoho pylu. Svidotstvo pro reiestratsiiu avtorskoho prava na tvir No 73060 vid 24.07.2017 r. – Zareiestrovano v Minekonomrozvytku i torhivli Ukrainy

7. Yefremov, E.I. et al. (2001). Eksperimentalnye issledovaniya vliyaniya skorosti vzryvnogo nagruzheniya na vykhod pylevidnykh fraktsii pry razryshenii gornykh porod. Geotekhnicheskaya mekhanika, 26, 8-12

8. Yefremov, E.I. et al. (2012). Vliyanie dinamicheskikh nagruzok na izmenenie struktury porod razlichnogo genezisa. Naukovyivisnyk NHU, 6, 126-130

9. Yefremov, E.I. et al. (2013). Vliyanie poverkhnostno-aktivnykh veshchestv na kharakter razrusheniya polimineralnykh porod. Rozrobka rodovyshch, 2014, D.: TOV "LizunovPres", 373-379

10. Zhilin, A.S. (2004) Study of the effect of surfactants on the effectiveness of explosive destruction of rocks. Proektirovanie, stroitelstvo i ekspluatatsiia kompleksov podzemnykh sooruzhenii.Tr. Mezhdunarodnoi konf. Yekaterinburg, Mai 18-20, 2004. Yekaterinburg: Izdatelstvo UGGGA, 259-262

11. Norov, Yu.D. et al. (2010). Development of downholes charge design using surfactants. Moscow: GIAB, 4, 143-144

12. Yefremov, E.I. et al. (2012). Vliyanie konstruktsii skvazhinnogo zariada VV na izmenenie uslovii peredachi energii vzryva razrushaemoi gornoi porode. Teoriya i poraktika vzryvnogo dela: MVK po vzryvnomu delu pri AGN, 392

13. Yefremov, E.I. et al. (2018). Povyshenie effektivnosti razrusheniya gornykh porod pri vzryve udlinennykh zariadov peremennogo diametra / Informatsionnyi biullenen USIV, 2 (34), 14-18

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