Науковий вісник НГУ

Peculiarities of drilling hard rocks using hydraulic shock technology

• 
• 

User Rating:  / 0

PoorBest 

Details

Category: Content №5 2022

Last Updated on 30 October 2022

Published on 30 November -0001

Hits: 2639

Authors:

B.Akhymbayeva, orcid.org/0000-0002-7979-1188, Satbayev University, Almaty, the Republic of Kazakhstan, email: This email address is being protected from spambots. You need JavaScript enabled to view it.

D.Nauryzbayeva, orcid.org/0000-0002-4072-8392, Satbayev University, Almaty, the Republic of Kazakhstan, email: This email address is being protected from spambots. You need JavaScript enabled to view it.

B.Mauletbekova, orcid.org/0000-0003-4229-429X, Satbayev University, Almaty, the Republic of Kazakhstan, email: This email address is being protected from spambots. You need JavaScript enabled to view it.

J.Ismailova, orcid.org/0000-0003-0273-2304, Satbayev University, Almaty, the Republic of Kazakhstan, email: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (5): 020 - 025

https://doi.org/10.33271/nvngu/2022-5/020

Abstract:

Purpose. To test the theoretical provisions for calculating the geometric and gas-dynamic parameters of a hydropulse apparatus for strikers using core pipes.

Methodology. The research methodology is based on the tests carried out. The tests were conducted between January 6, 2021, and April 28, 2021. The type of test is laboratory bench trials. In the course of the study, methods of synthesis and analysis of information were applied.

Finding. The basic design parameters of a hydro-pulse generator capable of operating efficiently with impact machines were obtained during the bench research. The optimal scheme of air flow distribution at the exhaust of the hydraulic hammer has been established. The optimal value of the pressure drop in the operating and blocking modes of operation of the generator is determined. In addition, the optimal value of the ejection coefficient in these two modes of operation of the generator was determined.

Originality. The article investigated the technologies of drilling hard rocks in order to optimise the basic geometric parameters of the hydraulic pulse generator, to distribute the working flow in front of the jet blower, to measure the value of the ejection coefficient and pressure drop to clarify the composition and methodology of experiments in borehole conditions.

Practical value. The presented study can be used to optimise the drilling technology as well as a basis for training specialists in the field of hard rock drilling using hydraulic percussion technology.

Keywords: rock destruction, hydrodynamic methods, of rock destruction, rock-breaking tool, strong rocks

References.

1. Ghosh, R., Schunnesson, H., & Gustafson, A. (2017). Monitoring of drill system behavior for water-powered in-the-hole (ith) drilling. Minerals, 7(7), 121. https://doi.org/10.3390/min7070121.

2. Yang, S., Ou, Y., Guo, Y., & Wu, X. (2017). Analysis and optimization of the working parameters of the impact mechanism of hydraulic rock drill based on a numerical simulation. International Journal of Precision Engineering and Manufacturing, 18(7), 971-977. https://doi.org/10.1007/s12541-017-0114-4.

3. Song, X., Aamo, O.M., Kane, P.-A., & Detournay, E. (2020). Influence of weight-on-bit on percussive drilling performance. Rock Mechanics and Rock Engineering, 54, 3491-3505. https://doi.org/10.1007/s00603-020-02232-x.

4. Zhabin, A.B., Lavit, I.M., Polyakov, A.V., & Kerimov, Z.E. (2020). Mathematical model of piston/bit interaction in percussive destruction of rocks. Mining Informational and Analytical Bulletin, 11, 140-150. https://doi.org/10.25018/0236-1493-2020-11-0-140-150.

5. Xu, Z., Yang, G., Wei, H., & Ni, S. (2015). Dynamic performance analysis of gas-liquid united hydraulic hammer. Engineering, 7(8), 499-505. https://doi.org/10.4236/eng.2015.78046.

6. Mitusov, A.A., Reshetnikova, O.S., & Lagunova, Y.A. (2017). Study of the disclosure two-line valve in the gradation of the working stroke of the striker hammer. Gornoe Oborudovanie I Elektromekhanika, 2(129), 34-39.

7. Gorodilov, L.V. (2018). Analysis of dynamics and characteristics of main classes of self-oscillating volume-type hydraulic impact systems. Journal of Machinery Manufacture and Reliability, 47(1), 19-27. https://doi.org/10.3103/S1052618818010077.

8. Zhang, X., Luo, Y., Gan, X., & Yin, K. (2019). Design and numerical analysis of a large-diameter air reverse circulation drill bit for reverse circulation down-the-hole air hammer drilling. Energy Science & Engineering, 7(3), 921-929. https://doi.org/10.1002/ese3.321.

9. Abu Bakar, M.Z., Butt, I.A., & Majeed, Y. (2018). Penetration rate and specific energy prediction of rotarypercussive drills using drill cuttings and engineering properties of selected rock units. Journal of Mining Science, 54(2), 270-284. https://doi.org/10.1134/S106273911802363X.

10. Eremyants, V.E. (2018). Variation in energy and production data of pneumatic percussive machines in the uplands. Journal of Mining Science, 53(4), 694-701. https://doi.org/10.1134/S1062739117042680.

11. Gorodilov, L.V., & Vagin, D.V. (2016). Software architecture for simulation the executive bodies hydraulic drives of mining and construction machinery. Problemy Nedropolzovaniya, 3, 48-52.

12. Neskoromnykh, V.V., & Golovchenko, A.E. (2020). Experimental study of rock destruction by eccentric impact pulses during rotary-percussion drilling. Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering, 331(1), 135-147. https://doi.org/10.18799/24131830/2020/1/2455.

13. Li, Y., Luo, Y., & Wu, X. (2018). Fault diagnosis research on impact system of hydraulic rock drill based on internal mechanism testing method. Shock and Vibration, 2018, 1-9. https://doi.org/10.1155/2018/4928438.

14. Bovin, K.A., Gilev, A.V., Shigin, A.O., Kurchin, G.S., & Kirsanov, A.K. (2019). Analysis of blast hole drilling at siberian open pit mines. International Journal of Mechanical and Production Engineering Research and Development, 9(6), 779-790. https://doi.org/10.24247/ijmperddec201966.

15. Lazutkin, S.L., & Lazutkina, N.A. (2019). Determination of rational parameters actuators adaptive shock system shock device. Sovremennye Naukoemkie Tekhnologii, 5, 58-63.

16. Kovalev, A.V., Ryabchikov, S.Ya., Aliev, F.R., Yakushev, D.A., & Gorbenko, V.M. (2015). Problems of hydrodynamic methods of drilling wells and the main directions of their solution. Bulletin of the Tomsk Polytechnic University, 326(3), 6-12.

17. Gorodilov, L.V. (2019). Design Theory, methods, programs and development for hydraulic percussion systems. Gornyi Zhurnal, 10, 55-60. https://doi.org/10.1177/1687814019841486.

18. Shadrina, A.V., & Saruev, L.A. (2015). Analysis and science-based compilation of the results of studying percussion-rotary underground slimhole digging. Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering, 326(8), 120-136.

19. Karpov, V.N., & Petreev, A.M. (2021). Determination of efficient rotary percussive drilling techniques for strong rocks. Journal of Mining Science, 57(3), 447-458. https://doi.org/10.1134/S1062739121030108.

20. Bondarenko, V., Kovalevska, I., & Ganushevych, K. (2014). Progressive technologies of coal, coalbed methane, and ores mining. London: CRC Press. ISBN:9780367576097.

• < Prev
• Next >