Development of mathematical model and methods of prevention of emergency situations of terrorist nature in railway tunnels

Anton Myroshnychenko

National University of Civil Defence of Ukraine

https://orcid.org/0000-0002-5104-0657

Roman Shevchenko

National University of Civil Defence of Ukraine

https://orcid.org/0000-0001-9634-6943

DOI: https://doi.org/10.52363/2524-0226-2021-34-14

Keywords: emergency situation, mathematical model, warning technique, railway tunnels, explosive device

Аnnotation

The paper considers the solution of the problem of increasing the efficiency of the process of prevention of terrorist emergencies in the tunnels of railway transport. Within the framework of the set scientific task the current state of the issue of formation of the mathematical apparatus of methods of counteraction to emergency situations of terrorist character in railway tunnels is analyzed. The physical field and conditions of formation of the mathematical model of prevention of emergencies of terrorist character in railway tunnels and the corresponding technique on its basis are defined. At the final stage of solving the scientific problem, the basic equations of the mathematical model of prevention. In the course of successive solution of the tasks, the existing contradictions in the physical field of model formation are identified and a clear range of functional limitations is formed. Accordingly, the control algorithm of the method should take into account the multilevel liquidation works and the corresponding preliminary procedures for calculating the parameters of the extinguishing pulse and determining the minimum possible distance of blasting, taking into account the risk of pyrotechnics by fragments and structural elements of the railway tunnel. The results obtained in the work allow to further develop a number of practical recommendations for improving the existing standard operating procedures in the case of using additional protection devices and methods of its application in order to reduce the time of localization of terrorist emergencies in railway tunnels, preventing their growth to a higher level of danger, and ensuring a sufficiently high level of individual and collective protection of SES personnel and civilians.

References

1. Wray, C. (2017). Keeping America Secure in the New Age of Terror. Statement Before the House. URL: https://www.fbi.gov/news/ testimony/keeping-america-securein-the-new-age-of-terror
2. Gus, M. (2017). Understanding Homeland Security. Los Angeles: SAGE, 456.
3. Lundberg, R. (2019). Archetypal Terrorist Events in the United States. Studies in Conflict Terrorism, 42:9, 819–835. doi: 10.1080/1057610X.2018.1430618
4. Mauroni, A. (2019). The rise and fall of counter proliferation policy. The Nonproliferation Review, 26:1–2, 127–141. doi: 10.1080/10736700.2019.1593691
5. Skilling, L., Zapasnik, M. (2017). Addressing the Explosive Hazard Threat in Northern Syria: Risk Education on Landmines, UXO, Booby Traps, and IEDs. Journal of Conventional Weapons Destruction, 21, 2, 14. Retrieved from https://commons.lib.jmu.edu/cisr-journal/vol21/iss2/14
6. Xiao, T., Horberry, T., Cliff, D. (2015). Analysing mine emergency management needs: a cognitive work analysis approach. International Journal of Emergency Management (IJEM), 11, 3, 191–208. Retrieved from http://www.inderscience.com/offer.php?id=71705
7. Toan, D. Q. (2015). Train-the-Trainer Trauma Care Program in Vietnam. Journal of Conventional Weapons Destruction, 19, 1, 9. Retrieved from http://commons.lib.jmu.edu/cisr-journal/vol19/iss1/9
8. Smith, A. (2017). An APT Demining Machine. Journal of Conventional Weapons Destruction, 21, 2, 15. Retrieved from http://commons.lib.jmu.edu/cisrjournal/vol21/iss2/15
9. Hadjadj, A. Sado, O. (2013). Shock and blast wave mitigation. Shock Waves, 23, 1–4. doi: 10.1007/s00193-012-0429-0
10. Tyas, A., Rigby, S. E., Clarke, S. D. (2014). Preface on special edition on blast load characterization. International Journal of Protective Structures, 7, 3, 302–304. doi: 10.1177/2041419616666340
11. Blakeman, S. T., Gibbs A. R., Jeyasingham, J. (2012). A study of mine resistant ambush protected (MRAP) vehicle as a model for rapid defence acquisitions. MBA Professional Report Monterey Naval School. Retrieved from http://www.dtic.mil/dtic/tr/fulltext/u2/a493891.pdf
12. Sherkar, P., Whittaker, A. S., Aref, A. J. (2012). Modeling the effects of detonations of high explosives to inform blast-resistant design. Technical Report MCEER10–0009. Retrieved from: http://mceer.buffalo.edu/pdf/report/10-0009.pdf
13. Armor Thane Reduces the Impact from Bombs and Bullets. Retrieved from https://www.armorthane.com/protective-coating-applications/blast-mitigationprotection.htm
14. Togashi, E., Baum, J. D., Mestreau, E., Löhner, R., Sunshine, D. (2012). Numerical simulation of long duration blast wave evolution inconfined facilities. Shock Waves. 20, 409–424. doi: 10.1007/s00193-010-0278-7
15. Snyman, I. M., Mostert, F. J. Olivier, M. (2016). Measuring pressure in a confined space. 27th international symposium on ballistics, 22–26.
16. Anthistle, T., Fletcher, D. I. Tyas, A. (2016). Characterization of blast loading in complex, confined geometries using quarter’s symmetries per mental methods. Shock Waves, 26(6), 749–757. doi: 10.1007/s00193-016-0621-8
17. Edri, I., Savir, Z., Feldgun, V. R., Karinski, Y. S. Yankelevsky, D. Z. (2012). On blast pressure analysis due to a partially confined explosion: III. Experimental studies. International Journal of Protective Structures, 2(1), 1–20. doi: 10.1260/2041-4196.3.3.311
18. Tytov, R. V. Anysyn, A. V. (2010). Vlyianye razlychnыkh faktorov mynnovzrыvnыkh porazhenyi na эksperymentalnoe zhyvotnoe, oblachennoe vo vzrыvozashchytnыi kostium. Vest. nats. medyko-khyrurh. Tsentra, 5, 4, 80–83.
19. Andreev, S. H., Babkyn, Yu. A., Baum, F. A. et al; pod red. Orlenko L. P. (2002). Fyzyka vzrыva: 2, 1, 3-e yzd., pererab. FYZMATLYT, 832.