Bulat A.F., Slashchovа O.A., Slashchov І.M., Stadniychuk M.M. Substantiation of methods of geomechanical safety control in the mining enterprises

Geoteh. meh. 2020, 150, 176-187

https://doi.org/10.15407/geotm2020.150.176

 

SUBSTANTIATION OF METHODS OF GEOMECHANICAL SAFETY CONTROL IN THE MINING ENTERPRISES

1Bulat A.F., 1Slashchovа O.A., 1Slashchov І.M., 1Stadniychuk M.M.

1Institute of Geotechnical Mechanics named by N. Poliakov of National Academy of Sciences of Ukraine

UDC 622.831.31 : 622.112.3

Language: Ukrainian

Annotation.

The article is devoted to the development of methods for monitoring geomechanical safety in the mining enterprises in terms of their use for determining risks of mine roadway stability loss and making timely decisions on the safety of mining operations. Purpose of the work was substantiation and systematization of the most effective methods for monitoring geomechanical safety in the mining enterprises. Hardware of the automated mine safety monitoring system just records parameters of components of the geotechnical system. However, this is not enough. First of all, well-proven methodologies are needed for interpreting the information received including reliable methods for monitoring of the rock massif state and rock pressure manifestations in mine workings, and well-founded criteria and risk assessment algorithms. Many of these methods are used little for economic reasons and absence of systemacy and consistency of their use. But the key reason is an impossibility to determine the necessary parameters and risks of mine roadway stability loss due to the diversity, complexity and poor predictability of the rock behavior under the influence of mining operations. Therefore, for predicting pre-emergency situations in geotechnical system caused by geomechanical factors, it is proposed to use a proved model of the Markov theory of random processes with discrete states and continuous time based on the linear system of the A.M. Kolmogorov differential equations. In order to apply the risk assessment model, the most effective reasonable methods for forecasting of the rocks stress-strain state and monitoring of mine workings are substantiated, which allow to adequately identify the input dominant parameters and improve the safety of mining technologies. Potential changes in risk indicators arising from waterlogging of rocks and affecting the mine roadway stability loss are identified. Dependencies are established, which determine the initial conditions for identifying waterlogged rock mass stability and contribute to the creation of technologies for roadway supporting.  A method is proposed for assessing supporting system or rock massif stability, which is distinguished by alternately identifying of interrelated and most variable risk factors by automated statistical processing of the amount of changes and the maximum rate of parameter change over time. Potential risks of emergency situations caused by factors affecting the mining enterprises safety are identified by parameters of periodic signals received from geomechanical object under the control.

Keywords:

safety control methods, identification of risk factors, mine roadway stability, geomechanical processes, mining operation safety.

References

1. Slashchov I.M. et al. (2019), “Identification of risk factors of mine workings stability loss”, Geoteh. meh., no. 149, pp. 209-222. 

https://doi.org/10.15407/geotm2019.149.209

2. Glushko, V.T., Yamshchikov, V.S. and Yalanskiy, A.A. (1987), Geofizicheskiy kontrol v shakhtakh i tonneliakh [Geophysical control in mines and tunnels], Nedra, Moscow, SU.

3. Bulat, A.F., Slashchov, I.N. and  Slashchova O.A. (2017), “Evaluation methods of interconnected geomechanical and gas dynamic processes in the rock massif for the systems of working medium control in the mines”, Geoteh. meh., no. 134, pp. 3-21.

https://doi.org/10.15407/geotm2017.134.003

4. Derdin, O. (2009), “The "UTAS" system is a presumption of non-alternativeism”, Everything about labor protection, no. 10, pp. 2-9.

5. Kolmogorov, A.N. (1986), Teoriya veroiatnostey i matematicheskaia statistika [Theory of Probability and Mathematical Statistics], Nauka, Moscow, SU.

6. Turchaninov, I.A., Iosif, M.A. and Kasparyan, E.V. (1989), Osnovy mekhaniki gornykh porod [Fundamentals of Rock Mechanics], Nedra, Leningrad, SU.

7. Ikonnikov M.YU. et al. (2015), Matematicheskoe modelirovanie v zadachakh otsenki effektivnosti I bezopasnosti gornykh rabot [Mathematical modelling in solving problems of evaluating the efficacy and safety of mining operations}, Natsionalnyy gornyy universitet, Dnipropetrovsk, UA.

8. Slashchova O.A. (2003), “Working out of the express-method of the forecast geomaterials stability about changing their conductivity characteristics under influence of the hydrogeological factors”, Geoteh. meh., no. 42, pp. 143-148.

9. Slashchova, O.A., Slashchov, I.N. and Yalanskiy, A.A. (2014), “Features solutions for problems of geomechanical watery gas-saturated rock massif”, Geoteh. meh., no. 115, pp. 232-244.

10. Slashchov I.M., Shevchenko V.G, Kurinnyi V.P., Slashchova O.A., and Yalanskyi O.A. (2019) Forecast of potentially dangerous rock pressure manifestations in the mine roadways by using information technology and radiometric control methods. MiningofMineralDeposits, no. 13(4), pp. 9-17.

https://doi.org/10.33271/mining13.04.009

11. Slashchov I.M. (2019), “Estimation of fracture systems parameters in rock massif by the finite element method”, E3S Web of Conferences, Vol. 109.

https://doi.org/10.1051/e3sconf/201910900094

12. Slashchov I.M., Shevchenko V.G. and Slashchov A.I. (2013), “Optimized information system for on-line predicting of geomechanical process behavior and ensuring proper decision-making on the mine safety”, Geoteh. meh., no. 112, pp. 129-144.

13. Shevchenko, V.G. and Slashchov, A.I. (2018), Informatsionnye sistemy bezopasnosti I proizvoditelnosti podzemnykh gornykh rabot [Information systems for underground mining safety and productivity], Naukova Dumka< Kyiv, UA.

14. Slashchov, I.M. (2012), “The development of mathematical model and technology of computer analysis of tectonically disturbed structurally-heterogeneous rock massif”, Geo-Technical Mechanics, no. 104, pp. 94-109.

15. Bulat, A.F. and Slashchov, I.N. (2012), “Development of computer systems mathematical modeling geomechanical processes”, Geo-Technical Mechanics, no. 99, pp. 16-27.

16. Slashchov I.N. and Slashchova O.A. (2016), “Study of caving zone formation in the rock massif at mining adjacent panels in the mines”, Geoteh. meh., no. 128, pp. 179-191.

https://doi.org/10.15407/geotm2018.141.216

17. Slashchov A.I. (2018). “Improvement of the digital system for the rock stress-strain state forecasting”, Geoteh. meh., no. 141, pp. 216-231.

https://doi.org/10.15407/geotm2018.141.216

18. Slashchov A.I., Slashchov I.M, Osinnya N.V. and Konstantynova I.B. (2019), “The hierarchical model of fuzzy logic output formalization for digital systems evaluating mine workings stability”, Geoteh. meh., no. 149, pp. 122-131. 

https://doi.org/10.15407/geotm2019.149.122

19. Slashchov A.I. and Yalanskyi O.A. (2019),  “Substantiation of fuzzy logic algorithms for control problems of a geotechnical systems”, E3S Web of Conferences, Vol. 109.

https://doi.org/10.1051/e3sconf/201910900091

 

About the authors

Bulat Anatolii Fedorovych, Academician of the National Academy of Science of Ukraine, Doctor of Technical Sciences (D. Sc), Professor, Director of the Institute, Institute of Geotechnical Mechanics named by N. Poliakov 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.

Slashchov Ihor Mykolaiovych, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in the Department of Mineral Mining at Great Depths, Institute of Geotechnical Mechanics named by N. Poliakov NAS of Ukraine (IGTM, NASU), Dnspro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Slashchovа Olena Anatoliivna, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in the Department of Mineral Mining at Great Depths, Institute of Geotechnical Mechanics named by N. Poliakov NAS of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Stadniychuk Mykola Mykolaiovych, Master of Science, Chief Designer in Department of Mine Energy Complexes, Institute of Geotechnical Mechanics named by N. Poliakov NAS of Ukraine (IGTM, NAS of Ukraine), Dnіpro, This email address is being protected from spambots. You need JavaScript enabled to view it.