Skipochka S.I. Conceptual basis of mining intensification by the geomechanical factor

Details

Parent Category: Geo-Technical Mechanics, 2019

Category: Geo-Technical Mechanics, 2019, Issue 145

Geoteh. meh. 2019, 145, 97-107

https://doi.org/10.1051/e3sconf/201910900089

Conceptual basis of mining intensification by the geomechanical factor

¹Skipochka S.I.

¹Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences ofUkraine

UDC 622.7.012.15

Language: English

Abstract.

The object of research is the geomechanical processes, that occur in a rock mass at high rates of exposure. The goal of the work – to develop a concept of intensification of mining operations, taking into account some geomechanical processes occurring in the “rock massif – mining workings – support and protective structures” system. The article is the result of theoretical and experimental research materials, including analysis and synthesis, carried out for the conditions of coal, non-metallic and iron-ore mines. Positive and negative geomechanical processes and phenomena, occurring during intensification of mining operations, have been substantiated. A set of technical and technological solutions to eliminate the negative phenomena associated with high mining rates development of mineral resources has been proposed. Concept of the intensification of coal mining by the geomechanical factor is formulated.  As in the case of taking into account production, socio-economic and other factors, the adaptation of technical and technological conditions of coal mining to geomechanical processes in the coal-rock massif should be carried out by searching for optimal solutions based on three main criteria. They are: mining safety, cost of coal mining and labor productivity. The main way to intensify coal mining is to increase the load on the coal face. This is achieved by increasing the speed of cleaning works. The negative geomechanical factor at high face traversing speed is an increase in spacing of the main roof breaks. Technical and technological solutions should be aimed at reducing it to the optimal size. Another way is to  sufficient resistance to the face and drift support structures, as well as constructing special security structures in the wing part of the junction. Ways to solve this problem are justified on the basis of optimization conditions. The concept of intensifying the work of ore mines taking into account the geomechanical factor formulated. Recommendations, presented in this article, will significantly reduce the conditionally fixed costs of mining production and improve miner's safety.

Keywords: solid minerals, underground mining, mining intensification, geomechanical factor, positive phenomena, negative processes, reduction of influence, technical and technological solutions.

 

References

1. Chervatuk, V.G. (2001). “The Model of Computinq Experiment of Interplays in the System “Support – Rock mass” on Linkings of Mining Drifts”, Geotechnological Issues of Underground Space Use for Environmentally Protected World, pp. 119-120.

2. Skipochka, S.I., Muhin, A.V. and Kuklin, V.Yu. (2003) “Osobennosti geomekhaniki ugleporodnogo massiva pri vysokikh nagruzkakh na ochistnoy zaboy”, Geo-Technical Mechanics, no 41, pp. 16-22.

3. Skipochka, S.I., Muhin, A.V. and Kuklin, V.Yu. (2003). “Geomechanscal aspects of conduct of array of stratal drifts at high speeds of pushing of faces”, Problemy girskogo tysku, no 9, pp. 108-119.

4. Skipochka, S.I., Usachenko, B.M. and Kuklin, V.Yu. (2006). Elementy geomekhaniki ugleporodnogo massiva pri vysokikh skorostyakh podviganiya lav [Geomechanscs of coal-rock array cells at high speeds of pushing of faces], Lira Ltd, Dnipropetrovsk, UA.

5. Baysarov, L.V., Ilyashov, M.A. amd Demchenko, A.I. (2005), Geomekhanika i tekhnologiya podderzhaniya povtorno ispolzuemykh gornykh vyrabotok, [Geomechanicsyks and technology of maintenance of the repeatedly used mine workings],  Lira Ltd, Dnipropetrovsk, UA.

6. Bulat, A.F. et al (2006). Vremennyu tekhnologichnyu reglament po okhrane podgotovitelnykh vyrabotok ugolnykh shakht Ukrainy litymi polosami iz tverdeyushchykh materialov [Temporal technological regulation on the guard of the preparatory workings  of coal mines of Ukraine by the poured bars from hardening materials], Dnepr-VAL, Dnipropetrovsk, UA.

7. Skipochka, S.I., Mukhin, A.V. and Chervatuk, V.G. (2002), Geomekhanika okhrany vyemochnykh shtrekov v neustoychivykh porodakh [Geomechanics guards of extraction drifts in unsteady rocks], NGAU, Dnipropetrovsk, UA.

8. Antsyuferov, A.V. [and others] (2010), Geomekhanichnyu monitoryng pidzemnykh geotekhnichnykh system [Geomechanical monitoring of the underground geotechnical systems],  Noulidg, Donetsk, UA.

About the author

Skipochka Serhii Ivanovych, Doctor of Technical Sciences (D. Sc.), Professor, Head of Laboratory of physics and geomechanical monitoring of rocks massif, Institute of Geotechnical Mechanics named N.S. Poljakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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