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Impact of the freeze-thaw cycles upon the heat and mass transfer properties of the technogenic cryogenic soil of the northeastern regions of the cryolithozone
Efimov Vasilii Moiseevich

Deputy Director, Institute of Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences

677000, Russia, the Sakha Republic (Yakutiya), Yakutsk, Oktyabrskaya Street 1, office #101

bmr2008@list.ru
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Stepanov Anatolii Viktorovich

Doctor of Technical Science

Chief Scientific Associate, Institute of Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences

677980, Russia, the Sakha Republic (Yakutiya), Yakutsk, Oktyabrskaya Street 1

a.v.stepanov@iptpn.ysn.ru
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Tappyrova Nadezhda Ivanovna

Leading Engineer, Institute of Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences

677980, Russia, the Sakha Republic (Yakutiya), Yakutsk, Oktyabrskaya Street 1

nadejda.tappyrova@yandex.ru
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Kravtsova Ol'ga Nikolaevna

PhD in Technical Science

Senior Scientific Associate, Institute of Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences

677980, Russia, the Sakha Republic (Yakutiya), Yakutsk, Oktyabrskaya Street 1

kravtsovao.n.@yandex.ru
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Stepanov Anatolii Anatol'evich

PhD in Technical Science

Scientific Associate, Institute of Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences

677980, Russia, the Sakha Republic (Yakutiya), Yakutsk, Oktyabrskaya Street 1

stepanov-a.a@mail.ru
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Abstract.

This article concentrates on the experimental research of the heat and mass transfer properties of the technogenic soil of Yakutia that are subject to freeze-thaw cycles. Definition is given to the technogenic soils according to the GOST 25100-95. The work cites the established fact of significant difference in the coefficient of filtration of naturally located soils of seasonal layer of thaw from indexes acquired in controlled conditions. It is substantiated that there is a need to research the heat and mass transfer properties of the technogenic soils with consideration of the cyclic impact of the low temperatures and changes in the cryogenic structure for a more complete correspondence with the northern conditions. The authors analyze  the acquired data, approximate the experimental data via the methods of statistical processing and compare it with the data from other sources. The conducted research allowed determining the dependence of the thermophysical properties of the technogenic soils upon their moisture, temperature and loam content.

Keywords: freeze-thaw cycles, filtration, thermal conductivity, temperature, humidity, density, loam, frozen soils, technogenic substrates, diffusion coefficient

DOI:

10.7256/2453-8922.2017.4.25027

Article was received:

19-12-2017


Review date:

19-12-2017


Publish date:

10-01-2018


This article written in Russian. You can find full text of article in Russian here .

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