Conclusions
1. The test thawing of soils in the test area in the Urengoiskii GRÉS construction sites made it possible to determine the deformation characteristics of permafrost in their natural occurrence and to estimate the rate of consolidation and distributive properties of preliminarily thawed soils.
2. The calculation for the settlements of thawing soils with the use of results of compression tests and visual determination of the ice content led, in the given case, to values with are twice as much as the actual values.
3. Permanently frozen sandy soils in the construction areas are practically noncompressible with thawing, whereas clayey soils are highly compressible with thawing and cannot be made use of as per principle II without preliminary thawing.
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Literature cited
SNiP II-18-76. Soil Bases and Foundations in Permafrosts.
E. S. Maksimenko, V. D. Ponomarev, V. A. Sorokin, and Yu. G. Fedoseev, "Determination of the deformation characteristics of permafrosts by the test thawing method," Osn., Fundam. Mekh. Gruntov, No. 6, 21–22 (1986).
GOST 24586-81. Soils. Methods of laboratory determination of strength and deformation characteristics of frozen soils.
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Deceased.
Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 1, pp. 16–18, January–February, 1989.
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Ponomarev, V.D., Maksimenko, E.S. & Fedoseev, Y.G. Determination of the deformation characteristics of thawing permafrost soils in the construction of the urengoiskii grés complex. Soil Mech Found Eng 26, 10–13 (1989). https://doi.org/10.1007/BF02306229
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DOI: https://doi.org/10.1007/BF02306229