Вестник Кольского научного центра РАН. 2015, №1.

CONTENTS N.N. Melnikov, P.V. Amosov, N.V. Novozhilova STUDY OF THERMAL STATE OF PERMAFROST ROCKS ON THE FACILITY FOR UNDERGROUND ISOLATION OF SPENT NUCLEAR FUEL AT THE BILIBINSKAYA NUCLEAR POWER PLANT The results of numerical modelling of thermal state of permafrost rocks are shown taking into account the “water-ice” phase transition on a facility for underground isolation of spent nuclear fuel (SNF) at the Bilibinskaya nuclear power plant. Three schemes have been analysed for SNF disposal in long-term storage covers (on depth of host rock): 2, 3 and 4 layers. For each disposal scheme, the SNF holding period has been determined that provides for the safe depth of thawing between adjacent wells. Spatial-temporal distributions of temperature has been analysed at variations of the well radius and thermal conductivity of the filling material. The features of temperature dynamics at the model areas have been marked, and dimensions of thawing areas at the host rock have been estimated. Keywords: modelling, SN F disposal, permafrost, “water-ice”phase transition, dynamics of temperature distribution, holding period. Authors Nikolay N. Mel’nikov - full member of RAS, director of Mining Institute KSC RAS; e-mail: root@goi.kolasc.net.ru Pavel V. Amosov - PhD (Tech.), senior scientific researcher of Mining Institute KSC RAS; e-mail: vosoma@goi.kolasc.net.ru Natalya V. Novozhilova - junior scientific researcher of Mining Institute KSC RAS; e-mail: nat1966kis@mail.ru LITERATURA 1. Vozmozhnosti sozdaniya opytno-promyshlennogo ob"ekta podzemnoj izolyacii OYAT i RAO / M.V. Baryshnikov i dr. // Bezopasnost' yadernyh tekhnologij i okruzhayushchej sredy. 2012. № 3. S. 70-75. 2. Lobanov N.F. Sozdanie opytno-promyshlennogo ob"ekta podzemnoj izolyacii OYAT v tolshche mnogoletnemerzlyh porod v zone razmeshcheniya Bilibinskoj AEHS: materialy seminara KEHG MAGATEH «Ehkonomika obrashcheniya s otrabotavshim yadernym toplivom: pererabotka i neposredstvennaya izolyaciya». Aronsborg, Shveciya, 7 oktyabrya 2011. Rezhim dostupa: http://www.iaea.org/OurWork/ST/NE/NEFW/Technical_Areas/WTS/CEG/CEG-Workshop-7-Oct-2011/3.5- Lobanov-Rus.pdf (data obrashcheniya 06.11.2012 g.). 3. Vozmozhnosti sozdaniya opytno-promyshlennogo ob"ekta podzemnoj izolyacii OYAT i TRO / S.B. Karapetyan i dr. // Bezopasnost' yadernyh tekhnologij i okruzhayushchej sredy. 2012. № 2. S. 133-139. 4. Vybor marshrutov transportirovaniya OYAT Bilibinskoj AEHS na osnove ocenki radiacionnyh riskov / E.V. Suvorova, A.V. Haperskaya, A.A. Stroganov i dr. // Bezopasnost' yadernyh tekhnologij i okruzhayushchej sredy. 2013. № 3-4. S.53-56. 5. Obosnovanie vozmozhnosti razmeshcheniya opytno-promyshlennogo ob"ekta podzemnoj izolyacii OYAT i RAOv tolshche mnogoletnemerzlyh gornyh porod v zone razmeshcheniya Bilibinskoj AEHS / B.G. Lukishov, N.P. SHvedova, N.V. Garmasheva i dr. // Yadernaya i radiacionnaya bezopasnost' Rossii. 2013. Vyp. 15. S. 31-41. 6. Mel'nikov N.N., Amosov P.V., Novozhilova N.V. Matematicheskoe modelirovanie teplovogo sostoyaniya mnogoletnemerzlyh gornyh porod na ob"ekte podzemnoj izolyacii OYAT Bilibinskoj AEHS v zavisimosti ot vremeni vyderzhki // Vestnik KNC RAN. 2014. № 1 (16). S. 3 -9 . 7. Inzhenernaya geokriologiya: spravochnoe posobie / Eh.D. Ershov i dr.; pod red. Eh.D. Ershova. M.: Nedra, 1991. 439 s. 8. Ershov EH.D., Parmuzin S.YU., Lisicyna O.M. Problemy zahoroneniya radioaktivnyh othodov v kriolitozone // Geoehkologiya. 1995. № 5. S. 20-36. 9. Kazakov A.N., Lobanov N.F., Man'kin V.I. Dinamika razvitiya teplofizicheskih processov pri podzemnoj izolyacii teplovydelyayushchih RAO v mnogoletnemerzlyh gornyh porodah // Geoehkologiya. 1997. № 2. S. 36-40. 10. Regulirovanie teplovogo rezhima podzemnyh sooruzhenij skladskogo i special'nogo naznacheniya v usloviyah Severa / A.S. Kurilko i dr. Yakutsk: Izd-vo In-ta merzlotovedeniya SO RAN, 2011. 246 s. 11. Modelirovanie teplovyh processov v gornom massive pri otkrytoj razrabotke rossypej kriolitozony / A.S. Kurilko [dr.]. Novosibirsk: Akademicheskoe izd-vo «Geo», 2011. 139 s. 12. Lunardini V.J. Heat transfer in cold climates. New York: Van Nostrand Reinhold Company, 1981. 731 p. 13. Bilibinskaya atomnaya ehlektrostanciya / V.M. Abramov i dr. // Atomnaya ehnergiya. 1973. T. 85, № 5. S. 299-304. 14. Fizicheskie velichiny: spravochnik / A.P. Babichev i dr.; pod red. I.S. Grigor'eva, E.Z. Mejlihova. M.: Ehnergoatomizdat, 1991. 1232 s. 15. Radiogeoehkologicheskie aspekty bezopasnosti podzemnogo zahoroneniya radioaktivnyh othodov i otrabotannogo yadernogo topliva na evropejskom severe Rossii / N.N. 174 Herald o fKola Science Centre o f the Russian Academy o f Sciences 1/2005(20)