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Explored theoretically the interaction of explosive charges in the preliminary gap formation in quarries. A methodology has been developed for conducting experimental studies of blast well contour explosions on models, which allows one to investigate crack formation on volumetric models and wave interaction using high-speed video recording of the explosion process in transparent models, as well as determine the parameters of explosion stress waves in samples of real rocks. Theoretical and laboratory researches have established that only the creation of a screening gap for the entire height of the non-working ledge allows you to get a virtually undisturbed array with a high-quality surface of the slope.

 

  • Internet havola
  • DOI
  • UzSCI tizimida yaratilgan sana 13-01-2021
  • O'qishlar soni 308
  • Nashr sanasi 20-11-2020
  • Asosiy tilIngliz
  • Sahifalar81-90
English

Explored theoretically the interaction of explosive charges in the preliminary gap formation in quarries. A methodology has been developed for conducting experimental studies of blast well contour explosions on models, which allows one to investigate crack formation on volumetric models and wave interaction using high-speed video recording of the explosion process in transparent models, as well as determine the parameters of explosion stress waves in samples of real rocks. Theoretical and laboratory researches have established that only the creation of a screening gap for the entire height of the non-working ledge allows you to get a virtually undisturbed array with a high-quality surface of the slope.

 

№ Havola nomi
1 1. Norov Yu.D., Zairov Sh.Sh. Development of a method for calculating the effective parameters of borehole charges of explosives during contour blasting // Materials of the XIV International conference on the topic: «Resource-Reproducing, low-waste and environmental technologies for subsoil development». ‒ KRSU-RUDN. – Moscow-Kyrgyzstan, September 14-20, 2018. ‒ pp. 125-128.
2 2. Norov Yu.D., Zairov Sh.Sh., Nutfullaev G.S. Improvement of blasting operations at contour blasting in water-filled rocks at quarries // Materials of the scientific and practical conference «Innovative technologies of the mining and metallurgical industry». ‒ Navoi, October 21, 2019. ‒ pp. 59-61.
3 3. Norov Yu.D., Zairov Sh.Sh., Karshiev Zh.Kh., Mustafaev M.M. Controlling the process of rock destruction during contour blasting in order to obtain stable slopes of ledges in quarries // Materials of the VI International scientific and technical conference on the topic: «Modern equipment and technologies of the mining and metallurgical industry and ways of their development». ‒ Navoi, may 14-16, 2018. ‒ p. 58.
4 4. Norov Yu.D., Zairov Sh.Sh., Urinov Sh.R. Development of a method for calculating the effective parameters of borehole charges of explosives during contour blasting // Collection of scientific articles of the Republican scientific and practical conference on the topic: «Modern problems of rational subsoil use». ‒ Tashkent, September 26, 2013. ‒ pp. 64-66.
5 5. Norov Yu.D., Zairov Sh.Sh. Theoretical studies of the explosion action of borehole charges of explosives in the contour zone of the quarry / / Gorny Vestnik Uzbekistan. ‒ Navoi, 2019. ‒ No. 3. ‒ pp. 23-30.
6 6. Norov Yu.D., Zairov Sh.Sh. Designing quarries and ensuring the stability of boards. – Monograph. ‒ Navoi, Ed. Navoi, 2018. ‒ 252 p.
7 7. Umarov F.Ya. Development of methods for managing the state of responsible engineering structures in deep quarries // Diss Doct. Techn. Sciences. Navoi, 2016. ‒ 231 p.
8 8. Norov Yu.D., Zairov Sh.Sh., Nutfullaev G.S. Improvement of blasting operations at contour blasting in water-filled rocks at quarries // Materials of the scientific and practical conference «Innovative technologies of the mining and metallurgical industry». ‒ Navoi, October 21, 2018. ‒ pp. 59-61.
9 9. Norov Yu.D., Bibik I.P., Zairov Sh.Sh. Management of effective parameters of drilling and blasting operations according to the quality criterion of blasted rock mass / / Izvestiya vuzov. Mining journal. ‒ Yekaterinburg, 2018. ‒ No. 1. ‒ рр. 58-64.
10 10. Norov Yu.D., Zairov Sh.Sh. Method of investigation of the action of explosion of borehole borehole charges of explosives in the contour zone of the quarry. ‒ Navoi, 2019. ‒ 50 p.
11 11. Determination of the coefficient of protective ability of screening slits / Norov Yu.D., Bibik I.P., Zairov Sh.Sh., Urinov Sh.R., Nazarov Z.S., Norov D.Sh. / / Certificate of official registration of computer programs no. DGU 02325 on application no. DGU 2011 0153 of 20.07.2011. Registered in the state register of computer programs of the Republic of Uzbekistan 27.10.2011.
12 12. Ahmed R., Comportement et Fragmentation Dynamique des Matérieaux QuasiFragiles. Application à la Fragmentation des Roches par Explosifs; Thèse de Doctorat de l’Ecole Nationale Supérieure des Mines de Paris; 2019. – 210 p.
13 13. Peter B., Optimisation of Fragmentation and Comminution at Boliden Mineral, Aitik Operation, 2018. – 179 р.
14 14. Rolf S. Paine, D.K. Holmes, Harri E. Clark. Presplit Blasting at the Niagara Power Project // The Explosives Engineer. – Vol. 39. – №3. May-june, Wilmington, Delaware, USA, 2019. – рр. 72-92.
15 15. Rossmanith H.P., The Mechanics and Physics of Advanced Blasting-Waves, Shocks, Fracture, Damage, Impact and Profit, Short Course Frag Blast 8, 2018. – 214 р.
16 16. Selberg H.L. (2015) Transient compression waves from spherical and cylindrical cavities. Archive for physics, Band 5, no. 7. – рр. 307-314.
17 17. Azarkevich A.E., Yanovsky V.N., Krivoruchko R.A. Main regularities of action in soils a linear ejection charges and their calculation. ‒ In the book: Explosive case. ‒ №78/45. ‒ M., Nedra, 2017. ‒ рp. 193-197.
18 18. Zairov Sh.Sh., Orinov Sh.R., Ravshanova M.H., Nomdorov R.U. Physical and technical assessment of the stability of the sides of quarries, taking into account the technology of drilling and blasting. - Bukharo: 2020. - 175 p., pp. 98-107.
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