по
Arctic and Antarctica
12+
Journal Menu
> Issues > Rubrics > About journal > Authors > About the Journal > Requirements for publication > Peer-review process > Article retraction > Ethics > Online First Pre-Publication > Copyright & Licensing Policy > Digital archiving policy > Open Access Policy > Article Processing Charge > Article Identification Policy > Plagiarism check policy > Editorial Board > Council of Editors
Journals in science databases
About the Journal
MAIN PAGE > Back to contents
Publications of Vasil'chuk Yurii Kirillovich
Arctic and Antarctica, 2018-1
Efimov V.M., Rozhin I.I., Popenko F.E., Popenko F.E., Stepanov A.V., Stepanov A.A., Vasil'chuk Y.K. - Arrangement of bored piles in the cryolithozone of central Yakutia pp. 133-141

DOI:
10.7256/2453-8922.2018.1.25936

Abstract: The article deals with the problems of arranging pile foundations on the territory of the Republic of Sakha (Yakutia) using bored piling. This technology, which is not so widespread in the republic, is simpler and more convenient, in contrast to reinforced concrete foundation piles. In the process of hardening concrete during the arrangement of the bored pile, local fission of frozen soil occurs. Therefore, when using bored piles in the cryolithozone, the problem of determining the design temperatures and the time of formation of the stationary soil regime at the base of the entire pile field, which allows full loading of the foundations, becomes especially critical. Field observations of the temperature regime of soils near the bored pile during its arrangement and hydration of concrete were carried out. In the course of the study, data was obtained on the dynamics of the temperature regime of the soil near the bored pile in the process of its arrangement. The data obtained show that stable negative temperatures over the entire depth of the well are observed one month after pouring, during which period the pile attains most of its strength.
Arctic and Antarctica, 2017-4
Efimov V.M., Kravtsova O.N., Stepanov A.V., Timofeev A.V., Vasil'chuk Y.K., Tappyrova N.I. - Research on the impact of the surface active agents upon the strength of the frozen soil of the cryolithozone of the Sakha Republic (Yakutia) pp. 80-85

DOI:
10.7256/2453-8922.2017.4.25035

Abstract: This article focuses on the experimental research of the impact of additives of surface active agents upon the strength of the frozen dispersed soils. The work touches on the problem of finding new theoretical approaches towards mechanical properties of dispersed soils accounting for presence of free surface energy and impact of the physical chemistry factors upon the behavior and properties of the soils. Substantiation is made on the physical chemistry approach as the most promising one in this area. Pyotr Rebinder’s mechanism for strengthening thawed soils through the effects of the surface active agents is presented in this research. Experimental research was conducted on the strength characteristics of the frozen dispersed soils with use of surfactants and without additives. The conducted research yielded experimental curve relationship of the maximal strength from time for frozen sand and loam with surfactants and without.
Other our sites:
Official Website of NOTA BENE / Aurora Group s.r.o.