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Arctic and Antarctica
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Publications of Popenko Fedor Eliseevich
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., Popenko F.E., Rozhin I.I., Stepanov A.V., Bol'shev K.N. - Formation of the temperature of foundation soils during usage of thermal stabilizers in the conditions of the cryolithozone of the central Yakutia pp. 98-105

DOI:
10.7256/2453-8922.2017.4.25037

Abstract: The subject of this research is the interaction of the seasonal thermal stabilizers with the soils, processes of thermal and mass transfer and formation of cryotextures. The thermal stabilizers found broad implementation in northern construction for strengthening foundations of buildings formed with plastic and thawed dispersed soils with installation of Anti-filtration screens and ice walls. The efficiency of the work of thermal stabilizers is assessed based on the rate of formation of the calculated temperature schedule in foundations of engineering structures. The presented data of formation of temperatures of the soil foundations cooled by the liquid-vapor thermal stabilizers reflect regularities characteristic for dispersed soils of all types with various indexes of moisture and salinization for buildings with ventilated crawl spaces.  
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