hi boy
"Ugol" magazin

MINING EQUIPMENT


Original Paper

UDC 622.002.5:62-192 © N.K. Linh1, D.V. Dinh 1, V.V. Gabov2, L.Q. Phuc1, N.V. Thang2, 2024

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 9, pp. 81-86

DOI: http://dx.doi.org/10.18796/0041-5790-2024-9-81-86

Title

ENHANCING THE EQUIPMENT ADAPTABILITY FOR REMOVING FRAME SUPPORTS IN THE MINE WORKINGS

Authors

N.K. Linh1, D.V. Dinh 1, V.V. Gabov2, L.Q. Phuc1, N.V. Thang2

Authors Information

Linh N.K. – Associate Professor, Hanoi University Of Mining and Geology, Hanoi, 112400, Vietnam, e-mail: nguyenkhaclinh@humg.edu.vn

Dinh D.V. – Associate Professor, Hanoi University Of Mining and Geology, Hanoi, 112400, Vietnam, e-mail: dangvudinh@humg.edu.vn

Gabov V.V. – Professor, Saint Petersburg Mining University, Saint Petersburg, 199106, Russian Federation, e-mail: gabov_vv@pers.spmi.ru

Phuc L.Q. – Associate Professor, Hanoi University Of Mining and Geology, Hanoi, 112400, Vietnam, e-mail: fuglinh@humg.edu.vn

Thang N.V. – Asistent, Saint Petersburg Mining University, Saint Petersburg, 199106, Russian Federation, e-mail: nguen_v2@pers.spmi.ru

Abstract

The trend of shifting from surface to underground coal mining implies an increase in the number of mine workings from which coal will be extracted. Most of mine workings in Vietnam are currently reinforced by steel frame supports. Once coal is extracted, the steel supports in the mine workings are often not removed or the number of removed supports remains extremely low, resulting in significant losses of resources in the coal mining process. However, their removal process faces many challenges due to the challenging geological conditions, frequent roof caving during the support disassembly, resulting in harsh and hazardous working conditions. With the help

of simulation in the Maple software suite, it is shown that changing the inclination angle of the support cylinder leads to corresponding changes in the dimensions and strength parameters of the structures. The results show that for the same load value, the pressure in the support cylinder can be reduced, which reduces the force acting on the pivot joints of the hydraulic stand, thus improving the reliability and optimizing the force on the stand components.

Keywords

Mine workings, сoal face, disassembly, hydraulic stand, computer simulation, maple.

References

1.  Babyr N. topical themes and new trends in mining industry: Scientometric analysis and research visualization. International Journal of Engineering. 2024;37(2):439-451. dOI: 10.5829/ije.2024.37.02b.18.

2.  alekseenko a.V., drebenstedt C., Bech J. assessment and abatement of the eco-risk caused by mine spoils in the dry subtropical climate. Environmental Geochemistry and Health. 2022;44(5):1581-1603. dOI: 10.1007/s10653-021-00885-3.

3. Kornev a.V., Korshunov g.I., Kudelas d. reduction of dust in the longwall faces of coal mines: Problems and perspective solutions. Acta Montanistica Slovaca. 2021;26(1):84-97. dOI: 10.46544/aMS.v26i1.078.

4. Pashkevich M.a., danilov a.S., Matveeva V.a. remote sensing of chemical anomalies in the atmosphere in influence zone of Korkino open pit coal mine. Eurasian Mining. 2021;35(1):79-83. dOI: 10.17580/ em.2021.01.16.

5. Kazanin O., Sidorenko a., Sidorenko S., Ivanov V., Mischo h. high productive longwall mining of multiple gassy seams: Best practice and recommendations. Acta Montanistica Slovaca. 2022;27(1): 152-162. dOI: 10.46544/aMS.v27i1.11.

6.  Zuev B.y., Istomin r.S., Kovshov S.V., Kitsi V.M. Physical modeling the formation of roof collapse zones in Vorkuta coal mines. Bulletin of the Mineral Research and Exploration. 2020;(162):225-234. dOI: 10.19111/ bulletinofmre.620478.

7. litvinenko V.S., tsvetkov P.S., Molodtsov K.V. the social and mar? ket mechanism of sustainable development of public companies in the mineral resource sector. EurasianMining. 2020;(1):36-41. dOI: 10.17580/em.2020.01.07.

8. Казанин О.И. Перспективные направления развития технологий подземной угледобычи в РФ // Горный журнал. 2023. № 9. С. 4-11. dOI: 10.17580/gzh.2023.09.01. Kazanin, O.I. Promising technology trends in underground coal mining in russia. GornyiZhurnal. 2023;(9):4-11. (Inruss.). dOI: 10.17580/ gzh.2023.09.01.

9.  Шабаров А.Н., Куранов А.Д. Основные направления развития горнодобывающей отрасли в усложняющихся горнотехнических условиях ведения горных работ // Горный журнал. 2023. № 5. С. 5-10. dOI: 10.17580/gzh.2023.05.01. Shabarov a.N., Kuranov a.d. Basic development trends in mining sector in complicating geotechnical conditions. GornyiZhurnal. 2023;(5):5-10. (Inruss.). dOI: 10.17580/gzh.2023.05.01.

10.  Нгуен Т.Т., Карасев М.А. Расчет оптимальных геометрических параметров тоннеля квазипрямоугольного поперечного очертания по силовому фактору // Горный информационноаналитический бюллетень (научно-технический журнал). 2021. № 6. С. 59-71. dOI: 10.25018/0236-1493-2021-6-0-59. Nguyen t.Т, Karasev M.a. Optimization of geometry design of quasi-rectangular section tunnel by the force criterion. Gornyj informatsionno-analiticheskij byulleten’. 2021;(6):59-71. (In russ.). dOI: 10.25018/0236-1493-2021-6-0-59.

11.  Buevich V., gabov V., Zadkov d., Vasileva P. adaptation of the mechanized roof support to changeable rock pressure. Eurasian Mining. 2015;11-14. 10.17580/em.2015.02.03.

12.  Nguyen K.l., Nguyen V.X , le t., hong t. Study calculated high pressure recovery of the pole during work. Proceedings of the III Earth Science, mine, environment sustainable conference “EME 2020”, pp. 280-285.

13.  gamez-Montero P.J., Salazar E., Castilla r., freire J., Khamashta M., Codina E. Misalignment effects on the load capacity of a hydrau? lic cylinder. International Journal of Mechanical Sciences. 2009;(51): 105-113.

14.  yong X., yang J., Shang J., Xie h. design and optimization of a new kind of hydraulic cylinder for mobile robots. Proc. of the Institution of Mechanical Engineers, Part C. Journal of Mechanical Engineering Science. 2015;229(18). dOI: 10.1177/0954406215570106.

15. Кенжабаев К.Н.,Монзоев М.В. Вибрационное воздействие через скважины и технология дегазационной подготовки низкопрони? цаемого угольного пласта / М.В. Павленко, Н.Г. Барнов,Д.А.Кузиев и др. // Уголь. 2020. № 1. С. 36-40. dOI: 10.18796/0041-57902020-1-36-40. Pavlenko M.V., Barnov N.g., Kuziev d.a., Kenzhabaev K.N., Monzoev M.V. Vibration impact through wells and the technology of degassing of the preparation of low-permeability coal seam. Ugol’. 2020;(1):3640. (In russ.). dOI: 10.18796/0041-5790-2020-1-36-40.

16.  Khoreshok a., Kantovich l., Kuznetsov V., Preis E., Kuziev d. the re? sults of cutting disks testing for rock destruction. E3S Web Of Conferences. 2017;(03004). dOI: 10.1051 / E3SCONf / 20171503004.

17. Kral S. remarkable rescue unfolds. Mining Engineering. 2010;62(9):96.

18. herezy l. Crack zone range around longwall excavation during the two phases of its existence – behind the front of the first wall and before the front of the second wall. Mining Review. 2015;(4).

19. herezy l., Janik d., Skrzypkowski K. Powered roof support-rock strata interactions on the example of an automated coal plough system. Studia Geotechnical et Mechanical. 2018;40(1):46-55.

20. linh N., lykov y., urazbakhtin r. Evaluating the Efficiency of Coal loading Process by Simulating the Process of loading onto the face Conveyor with a Shearer with an additional Share. International Journal of Engineering. 2021;34(7). dOI: 10.5829/ije.2021.34.07a.25.

21. Kazanin O.I., Sidorenko a.a., Meshkov, a.a. reproduction of the longwall panels: Modern requirements for the technology and or? ganization of the development operations at coal mines. Eurasian Mining. 2020;(2):19-23. dOI: 10.17580/em.2020.02.05.

22. Особенности конструкции и технологии работы выемочного модуля для угольных месторождений Российской Арктики / Н.В. Бабырь, В.В. Габов, А.А. Носов и др. // Горный информационноаналитический бюллетень (научно-технический журнал). 2024. № 6. С.5-16. dOI: 10.25018/0236-1493-2024-6-0-5. Babyr N.V., gabov V.V., Nosov a.a., Nikiforov a.V. features of design and work method of mining module at coal deposits in the russian arctic. Gornyj informatsionno-analiticheskij byulleten’. 2024;(6):5-16. (In russ.). dOI: 10.25018/0236-1493-2024-6-0-5.

23.  Wang J., li M., Wang Z., tang y., Wang Z. a new method for improving coal wall stability in longwall mining by considering support stiffness. Bulletin of Engineering Geology and the Environment. 2023;82(5):163. dOI: 10.1007/s10064-023-03179-3.

24. БаклашовИ.В., КартозияБ.А. Механикаподземныхсооруженийиконструкциикрепей. Издание 3. М., 2012. C. 543.

25. Smee B.W., Bloom l., Practical applications of quality assurance and quality control in mineral exploration, resource estimation and mining programmes: a review of recommended international practices. Geochemistry. 2024;24(2). dOI: 10.1144/geochem2023-046. 26. Голосков Д.П. Курс математической физики с использованием пакета Maple: учеб. пос. СПб.: Изд. дом «Лань», 2015. 282 с.

Acknowledgements

This research was supported by the Ministry of Education and Training of Vietnam, Grant No. B2023 – MDA – 03.

For citation

Linh N.K., Dinh D.V., Gabov V.V., Phuc L.Q., Thang N.V. Enhancing the equipment adaptability for removing

frame supports in the mine workings. Ugol. 2024;(9):81-86. (In Russ.). DOI: 10.18796/0041-5790-2024-9-81-86.

Paper info

Received August 8, 2024

Reviewed August 15, 2024

Accepted August 26, 2024

SPECIAL ISSUE




Hot from the press
Partners