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Seismic Instruments

, Volume 54, Issue 6, pp 631–641 | Cite as

Natural Explosive Processes in the Permafrost Zone

  • A. N. Vlasov
  • A. N. KhimenkovEmail author
  • D. B. Volkov-Bogorodskiy
  • Yu. K. Levin
Article
  • 8 Downloads

Abstract

Two groups of natural explosive processes in the permafrost zone are considered. The first group was described long ago and is associated with freezing of water under constrained environmental conditions (explosions of hydrolaccoliths and icing mounds). The second group has been identified in the last three years. It is associated with the release of underground gases formed during dissociation of gas hydrates contained in permafrost. In both cases, explosion is caused by overpressure in the soil mass containing free water or gas. Release occurs when pressure exceeds the strength of the top of the permafrost. A number of common features related to preparation of explosive processes in permafrost can be identified. The first is a local zone where an explosive substance is concentrated: a frozen streambed of a groundwater flow, a water concentration zone in the frozen soil mass, or gas hydrates in frozen soil. The second feature is pressure compressing the substance. The third feature is deformations in overlying rocks. If pressure increases slowly and the roof has time to deform, then plastic deformation takes place and frost mounds expressed in the topography are formed. If pressure increases quickly, plastic deformation may not occur. The fourth feature is the explosion itself. As many authors have described, explosion impacts on objects of various origin have common characteristics: ejection of gas-saturated water, gas, and ground and ice debris to a distance of up to tens and sometimes hundreds of meters. Dissociation of gas hydrates in frozen ground first produces microcracks, then, ascending at quite high pressure, gas hydrates form subvertical channels and elongated pores. Ascent of gas hydrates to the surface and gas evaporation are impeded by a durable monolithic overlying ice-soil “cover.” As a result of this, a crack–pore structure of the frozen ground forms under the cover. The width of the crack opening and pore size increase as pressure grows due to gas filtration from the source of gas hydrate dissociation. Cracks and pores merge to form a cavity, into which gas leaks. Once the ultimate strength limit is exceeded, the cover may not bear stresses and the accumulated gas potential energy in the cavity is released (i.e., it is transformed to kinetic energy) through an explosion. During development of the Arctic, the hazard of explosive processes for engineering structures will increase. Nevertheless, this group of hazards is not only not taken into account in designs and forecasts, they are not even treated as dangerous geological processes.

Keywords:

permafrost zone gas hydrates hydrolaccolith explosion crater stages dissociation 

Notes

ACKNOWLEDGMENTS

The study was partially supported by the Russian Foundation for Basic Research (project no. 17-05-00294).

REFERENCES

  1. 1.
    Andreev, V.I., Hydrolaccoliths (bugulunnyakhs) in West Siberian tundra, Izv. Gos. Geogr. O-va, 1936, vol. 68, no. 2, pp. 186–210.Google Scholar
  2. 2.
    Bazhenova, O.I., Contemporary dynamics of lacustrine-fluvial systems in the Onon-Torei high plain, South Transbaikalia, Vestn. Tomsk. Gos. Univ., 2013, no. 371, pp. 171–177.Google Scholar
  3. 3.
    Bogomolov, N.S. and Sklyarevskaya, A.N., On explosions of hydrolaccoliths in the southern part of Chita oblast, in Naledi Sibiri (Ice Mounds of Siberia), Moscow: Nauka, 1969, pp. 127–130.Google Scholar
  4. 4.
    Bogoyavlenskii, V.I., Gas and oil release on land and in water areas of the Arctic region and World Ocean, Burenie Neft’, 2015, no. 6, pp. 4–10.Google Scholar
  5. 5.
    Bogoyavlenskii, V.I. and Garagash, I.A., Mathematical simulation of the processes related to formation of gas release craters in the Arctic region, Arkt. Ekol. Ekon., 2015, no. 3, pp. 12–17.Google Scholar
  6. 6.
    Devisilov, V.A., Drozdova, T.I., and Timofeeva, S.S., Teoriya goreniya i vzryva. Praktikum: uchebnoe posobie (A Theory of Combustion and Explosion: Practical Textbook), Moscow: FORUM, 2012.Google Scholar
  7. 7.
    Dyadin, Yu.A. and Gushchin, A.L., Gas hydrates, Sorosovskii Obraz. Zh., 1998, no. 3, pp. 55–64.Google Scholar
  8. 8.
    Epov, M.I., El’tsov, I.N., Olenchenko, V.V., Potapov, V.V., Kushnarenko, O.N., Plotnikov, A.E., and Sinitskii, A.I., Bermuda Triangle in Yamal Peninsula, Nauka Pervykh Ruk, 2014, vol. 59, no. 5, pp. 14–23.Google Scholar
  9. 9.
    Garagulya, L.S., Buldovich, S.N., Romanovskii, V.E., Shatalova, T.Yu., Parmuzin, S.Yu., Gordeeva, G.I., and Maksimova, L.N., Prirodnye opasnosti Rossii. Geokriologicheskie opasnosti (Natural Hazards in Russia: Geocryological Hazards), Moscow: KRUK, 2000.Google Scholar
  10. 10.
    GOST (State Standard) R 22.0.08-96. Safety under Emergencies. Technogenic Emergencies. Explosions. Terms and Definitions, Moscow: Izd. Standartov, 1996.Google Scholar
  11. 11.
    Griva, G.I., Geoenvironmental conditions of gas fields development in Yamal Peninsula, Doctoral (Geol.-Mineral.) Dissertation, Nadym, 2006.Google Scholar
  12. 12.
    Khimenkov, A.N., Sergeev, D.O., Stanilovskaya, Yu.V., Vlasov, A.N., and Volkov-Bogorodskii, D.B., Transformation of permafrost rocks when dissociation of gas hydrates, Materialy mezhdunarodnoi konferentsii po merzlotovedeniyu “Earth’s Cryosphere: Past, Present and Future” (Earth’s Cryosphere: Past, Present and Future. Proceedings of the International Conference on Permafrost Science), Pushchino, Russia, 2017, pp. 131–132.Google Scholar
  13. 13.
    Kizyakov, A.I., Sonyushkin, A.V., Leibman, M.O., Zimin, M.V., and Khomutov, A.V., Geomorphic conditions of formation of a gas release crater in central Yamal Peninsula and the dynamics of this landform, Kriosfera Zemli, 2015, no. 2, pp. 15–25.Google Scholar
  14. 14.
    Leibman,  M.O., Kizyakov,  A.I., Plekhanov,  A.V., and Streletskaya, I.D., New permafrost feature — deep crater in central Yamal (West Siberia, Russia) as a response to local climate fluctuations, Geogr. Environ., 2014, vol. 7, no. 4, pp. 68–80. doi 10.15356/2071-9388_04v07_2014_05Google Scholar
  15. 15.
    Mackay, J.R., Pingos of the Tuktoyaktuk Peninsula area, Northwest Territories, Geogr. Phys. Quat., 1979, vol. 33, no. 1, pp. 3–61. doi 10.7202/1000322arGoogle Scholar
  16. 16.
    Mackay, J.R., Pingo growth and collapse, Tuktoyaktuk Peninsula area, western arctic coast, Canada: A long-term field study, Geogr. Phys. Quat., 1998, vol. 52, no. 3, pp. 271–323. doi 10.7202/004847arGoogle Scholar
  17. 17.
    Petrov, V.G., Naledi na Amursko-Yakutskoi magistrali (Ice Mounds on the Amur–Yakutsk Road), Leningrad: Akad. Nauk SSSR, 1930.Google Scholar
  18. 18.
    Savatorova, V.L., Talonov, A.V., Vlasov, A.N., and Volkov-Bogorodskiy, D.B., Brinkman’s filtration of fluid in rigid porous media: multiscale analysis and investigation of effective permeability, Compos.: Mech., Comput., Appl.: Int. J., 2015, vol. 6, no. 3, pp. 239–264. doi 10.1615/CompMechComputApplIntJ.v6.i3.50Google Scholar
  19. 19.
    Savatorova, V.L., Talonov, A.V., Vlasov, A.N., and Volkov-Bogorodsky, D.B., Multiscale modeling of gas flow through organic-rich shale matrix, Compos.: Mech., Comput., Appl.: Int. J., 2016, vol. 7, no. 1, pp. 45–70. doi 10.1615/CompMechComputApplIntJ.v7.i1.40CrossRefGoogle Scholar
  20. 20.
    Strugov, A.S., An explosion of a hydrolaccolith in Chita oblast, Priroda, 1955, no. 6, p. 117.Google Scholar
  21. 21.
    Vlasov, A.N, Savatorova, V.L., and Talonov, A.V., The use of the method of multiscale averaging for describing mass transfer processes in geomaterials of organic origin, Mekh. Kompoz. Mater. Konstr., 2016, vol. 22, no. 3. pp. 362–377.Google Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • A. N. Vlasov
    • 1
  • A. N. Khimenkov
    • 2
    Email author
  • D. B. Volkov-Bogorodskiy
    • 1
  • Yu. K. Levin
    • 1
  1. 1.Institute of Applied Mechanics, Russian Academy of SciencesMoscowRussia
  2. 2.Sergeev Institute of Environmental Geoscience, Russian Academy of SciencesMoscowRussia

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