Kalinichenko V.О., Pysmennyi S.V., Fedko М.B., Kalinichenko Ye.V. Improvement of extraction room stability during the underground mining operations in the Kryvyi Rih iron-ore basin

Details

Parent Category: Geo-Technical Mechanics, 2018

Category: Geo-Technical Mechanics, 2018, Issue 139

Geoteh. meh. 2018,139, 59-69

DOI: https://doi.org/10.15407/geotm2018.02.059

IMPROVEMENT OF EXTRACTION ROOM STABILITY DURING THE UNDERGROUND MINING OPERATIONS IN THE KRYVYI RIH IRON-ORE BASIN

¹Kalinichenko V.О.,¹Pysmennyi S.V., ¹Fedko М.B., ¹Kalinichenko Ye.V.

¹State Higher Educational Institution «Kryvyi Rih National University»

UDC622.016.52:622.34

Language: Ukrainian

Abstract.

The considerable  supplies of rich iron-stones are concentrated In the Kryvoy Rog  ore field, now developed by an underground method on the depths of to 1390   m. For the subsequent successful functioning of minen enterprises with the underground method of exploitation it is necessary  to modernize and technically retool hoisting, ventilation, system of exploitation and etc

Objective of the research was to substantiate shape of the extraction room and parameters that ensure its stability and to improve effectiveness of mineral extraction when mining iron ores in the Kryvyi Rih Basin. Radii of vertical and horizontal curvilinear exposures, which formed a stable quasiparabolical shape of the extraction room, were determined.

The research determined magnitude of maximum destructive pressure on the contour of quasiparabolically-shaped extraction room and its relationship with the radii of vertical and horizontal curvilinear exposures, which are responsible for the shape of the extraction room contours. It is proved that stability of extraction room of such shape is ensured by its optimal height/width ratio. A method for determining parameters of extraction room was developed, which allows to determine radii of vertical and horizontal stable exposures depending on the rock physical and mechanical properties and existing main vertical stresses. The method is based on the results of laboratory studies performed for the conditions of the Kryvyi Rih iron ore basin.

It is established that parameters of stable extraction room of quasiparabolic shape are influenced by its height/width ratio, as well as by radii of vertical and horizontal curvilinear exposures. Radii of vertical and horizontal exposures were determined, which allowed to increase volume of extraction room and improve effectiveness of the ore extraction from extraction panel.

In future, taking into account the results of researches, it is necessary to develop resource-saving technology with forming in the breacaging  block of chamber of  quasi-parabolic form which will allow to decrease the capital and  operation outlays, to promote maintenance of useful component in ore mass.

Keywords: extraction room, exposure, stability, radius, stress.

References:

1. Kolosov,  V.А., Volovik, V.P. and Dyadechkin, N.I. (2000), «Сontemporary state and prospects of development of enterprises on a mining and processing of iron-ore and gumboil raw material in Ukraine», Mining Journal, No. 6, pp  162-168.

2. Khomenko, O.Ye., Vladyko, A.B. and Yavorsky, V.N. (2006), «Efficiency of selective mining of iron-stones in the conditions of Kryvoi Rog basin», Naukovy visnyk NGU, no. 6, pp. 15-17.

3. Girin, V.S., Kravtsov, N/K/ and V.A. Vitryak (2000), «Ways of perfection of quality of metallurgical raw material on the Krivbass mines», Mining of ore deposits, Vol. 70, pp. 10-13.

4. Shashenko, A.N., Solodyankin, A.V. and Naumovich, A.V. (2009), «Research conformities to the law of change of displacements and deformations of breeds on the depth of area of unresilient deformations», Bulletin of Krivoi Rog Technical University, Vol. 23, pp. 47-50.

5. Kolokolov, O.V., Khomenko, O.Ye. and Netecha, M.V. (2006), «Technology of mining of dzhespilit on the mines of Krivoy Rog sron-ore basin», Naukovy visnyk NGU. no. 7, pp. 3-7.

6. Bulat, A.F., Nikiforova, V.A. and Osennyi, V.Ya. (2006), «Increase of efficiency of the blast-hole drillings in strong ores», Bulletin of Kremenchug State Polytechnical University, Vyp. 37, pp. 93-94.

7. Tarasyutin, V.M. (2015), «Geo-technological properties of high-quality martit  ores of deep horizons of the Krivbass mines», Naukovy visnyk NGU, no. 1, pp. 54-60.

8. Isaenkov, А.A., Petrenko, Yu.A. and Sakhno, I.G. (2013), «Laboratory researches of mechanism passing of load through zone of destructed rocks in a floor of working by the repeated violation of balansing state», Visti Donetskogo girnychoho instytutu, Vyp. 2, pp. 112-118.

9. Plevako, V., Potapov, V., Kycenko, V., Lebedynec, I. and Pedorych, I. (2016), «Analytical study of the bending of isotropic plates, inhomogeneous in thickness», Eastern-European Journal of Enterprise Technologies, Vol. 4, 7(82), pp. 10-16.

https://doi.org/10.15587/1729-4061.2016.75052

10. Mulyavko, V.I., Oleynik, T.A., Lyashenko, V.I. [and others] (2014), «New technologies and hardwares for separation of weak-magnetical ores», Ore-dressing, no. 2, pp. 43-49.

11. Stupnik, N., Kalinichenko, V. and Pismenny, S. (2013), «Pillars sizing at magnetite quartzites room-work», Mining of Mineral Deposits, Balkema Book, pp. 11-15.

https://doi.org/10.1201/b16354-4

12. Galaev, Z.N. (1990), Upravleniye sostoyaniyem massiva gornykh porod pri podzemnoy razrabotke rudnykh mestorozhdeniy [Control state of array of mine rocks at underground mining of ore deposits], Nedra, Moscow, SU.

13. Pismenny  S.V. (2017), «Method of determination of active area of dome-formation on the contour of the underground-transport working at the combined mining of iron-ore deposits», Visnyk Natsionalnogo Tekhnichnogo Universytetu «KhPI». Seriya «Mekhaniko-tekhnologichni sistemy I kompleksy», NTU «KhPI», Kharkiv, no. 16 (1238), pp.  99-106.

14. Pismenny, S.V., Khivrenko, V.O., Sbitnev, V.A. and Polukhina, N.V. (2002), «Determination parameters of compensative chamber of the vaulted form», Mining of ore deposits, Vol. 79, pp. 48-52.

15. Stupnik, N.I., Andreev, B.N. and Pismenny, S.V. (2012), «Research forms of transversal section of the underground workings at the combined working out of deposits», Visnyk Kryvorizkogo Natsionalnogo Universytetu, Vol. 32, pp. 3-6.

About the authors:

KalinichenkoVsevolodOleksandrovych, Doctor of Technical Sciences (D. Sc.), Professor, Head of the Department of Underground Mining of Mineral Deposits, State Higher Educational Institution «Kryvyi Rih National University» (SHEI «KNU»), KryvyiRih, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

PysmennyiSerhiy Vasylyovych, Candidate of Technical Sciences (Ph. D), Associate Professor, Associate Professor in the Department of Underground Mining of Mineral Deposits, State Higher Educational Institution «Kryvyi Rih National University» (SHEI «KNU»), Kryvyi Rih, Ukraina, This email address is being protected from spambots. You need JavaScript enabled to view it.

FedkoMykhailoBorysovych, Candidate of Technical Sciences (Ph. D), Associate Professor, Associate Professor in the Department of Underground Mining of Mineral Deposits, State Higher Educational Institution «Kryvyi Rih National University» (SHEI «KNU»), Kryvyi Rih, Ukraine

Kalinichenko Olena Vsevolodivna, Candidate of Economical Sciences (Ph. D), Associate Professor, Associate Professor in the Department of Underground Mining of Mineral Deposits, State Higher Educational Institution «Kryvyi Rih National University» (SHEI «KNU»), Kryvyi Rih, Ukraine

• < Prev
• Next >