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Compressibility of sandy permafrost during thawing

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Conclusions

1. The compressibility of sandy permafrost deep deposits with a medium texture density is, as a rule, close to the compressibility of similar thawed deposits.

2. The degree of saturation of frozen sandy soils may serve as an indicator of their compressibility during thawing. When Gf<0.91, the compressibility of frozen sands during thawing is equal to the compressibility of similar thawed soils.

3. The compressibility of frozen sandy deposits during thawing, which increased as compared with ordinary thawed sands, should be expected in zones adjacent to the roof of soils with a low permeability.

4. The refinement of the method and the high quality of the testing of thawing soils increases significantly the technicoeconomic effectiveness of construction on permanently frozen sandy soils, making it possible to reduce the volume of special measures taken to ensure the stability of buildings and structures, or eliminate them entirely.

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Literature cited

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    G. V. Belotserkovskaya and V. D. Ponomarev, "Selecting the method of construction on permafrosts," Osn., Fundam Mekh. Gruntov, No. 6, 2–4 (1985).

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    L. N. Khrustalev and V. M. Vodolazkin, "Validity of existing estimates of the compressibility of thawing soils frozen for many years," Inzh. Geol., No. 4, 86–90 (1987).

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    V. D. Ponomarev, "Evaluating the accuracy of laboratory compression tests of thawing soils," Osn., Fundam. Mekh. Gruntov, No. 5, 24–25 (1984).

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    V. D. Ponomarev, V. M. Vodolazkin, V. A. Sorokin, and Yu. G. Fedoseev, Inventor's Certificate No. 73917.8, MKI3 V 25 S 15/00, "A method of determining the compressibility of frozen soils during their thawing," Otkr. Izobret., No. 21, 164 (1980).

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    E. S. Maksimenko, V. D. Ponomarev, V. A. Sorokin, and Yu. G. Fedoseev, "Determination of the deformation characteristics of frozen soils by the method of test thawing," Osn., Fundam. Mekh. Gruntov, No. 6, 21–22 (1986).

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    Fundamentals of Geocryology (frost science), Engineering Geology, Part 2 [in Russian], Izd. Akad. Nauk SSSR, Moscow (1959), pp. 33–35.

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Additional information

All-Union Scientific-Research Institute of Foundations and Underground Structures. Northern Branch of the All-Union Scientific-Research Institute of Foundations and Underground Structures. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, pp. 20–22, May–June, 1988.

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Ponomarev, V.D., Sorokin, V.A. & Fedoseev, Y.G. Compressibility of sandy permafrost during thawing. Soil Mech Found Eng 25, 124–128 (1988). https://doi.org/10.1007/BF01709717

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Keywords

  • Permeability
  • Civil Engineer
  • Compressibility
  • Sandy Soil
  • Structural Foundation