Influence of soil salinity on the bearing capacity of the frozen wall
The article describes the results of laboratory studies on the unfrozen water content and ultimate long-term strength of frozen clay and chalk samples in the temperature range from −10 to −25 °C. The soil samples contained dissolved salt in the pore space, with three types of salts (NaCl, KCl, and...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2024-04-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://fracturae.com/index.php/fis/article/view/4878 |
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| _version_ | 1832569252338466816 |
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| author | Mikhail Semin Lev Levin Sergey Bublik Andrey Brovka Ivan Dedyulya |
| author_facet | Mikhail Semin Lev Levin Sergey Bublik Andrey Brovka Ivan Dedyulya |
| author_sort | Mikhail Semin |
| collection | DOAJ |
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The article describes the results of laboratory studies on the unfrozen water content and ultimate long-term strength of frozen clay and chalk samples in the temperature range from −10 to −25 °C. The soil samples contained dissolved salt in the pore space, with three types of salts (NaCl, KCl, and CaCl2) being considered. The findings indicate that the influence of the content and type of dissolved salt on the ultimate long-term strength of soils is realized indirectly through the unfrozen water content. In this case, the soil freezing characteristic curve in the region of negative temperatures significantly depends on both the type of dissolved salt and its quantity. The experimental data obtained were used to parameterize the model and calculate the maximum bearing capacity of the frozen wall (FW) in the presence of dissolved salts in the volume of frozen soils. It has been demonstrated that the decrease in the maximum FW bearing capacity is substantial with the appearance of dissolved salt in the pore space of the soils. This decrease is at-tributed to the combined effects of two factors: 1) a reduction in the FW thickness and 2) a decrease in the frozen soil strength due to an increase in the amount of unfrozen water content in the soil pore space. The second factor is deemed more significant.
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| format | Article |
| id | doaj-art-45a8433a69f4402697b87a4176fc8ae8 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-45a8433a69f4402697b87a4176fc8ae82025-02-02T22:36:20ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932024-04-011869Influence of soil salinity on the bearing capacity of the frozen wallMikhail Semin0https://orcid.org/0000-0001-5200-7931Lev Levin1Sergey Bublik2https://orcid.org/0000-0002-2084-0002Andrey Brovka3Ivan Dedyulya4Mining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, RussiaMining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, RussiaMining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, RussiaInstitute of Natural Resources Management of the National Academy of Sciences, Minsk, BelarusInstitute of Natural Resources Management of the National Academy of Sciences, Minsk, Belarus The article describes the results of laboratory studies on the unfrozen water content and ultimate long-term strength of frozen clay and chalk samples in the temperature range from −10 to −25 °C. The soil samples contained dissolved salt in the pore space, with three types of salts (NaCl, KCl, and CaCl2) being considered. The findings indicate that the influence of the content and type of dissolved salt on the ultimate long-term strength of soils is realized indirectly through the unfrozen water content. In this case, the soil freezing characteristic curve in the region of negative temperatures significantly depends on both the type of dissolved salt and its quantity. The experimental data obtained were used to parameterize the model and calculate the maximum bearing capacity of the frozen wall (FW) in the presence of dissolved salts in the volume of frozen soils. It has been demonstrated that the decrease in the maximum FW bearing capacity is substantial with the appearance of dissolved salt in the pore space of the soils. This decrease is at-tributed to the combined effects of two factors: 1) a reduction in the FW thickness and 2) a decrease in the frozen soil strength due to an increase in the amount of unfrozen water content in the soil pore space. The second factor is deemed more significant. https://fracturae.com/index.php/fis/article/view/4878Artificial ground freezingFrozen wallDissolved saltUltimate long-term strengthUnfrozen water contentMine shaft |
| spellingShingle | Mikhail Semin Lev Levin Sergey Bublik Andrey Brovka Ivan Dedyulya Influence of soil salinity on the bearing capacity of the frozen wall Fracture and Structural Integrity Artificial ground freezing Frozen wall Dissolved salt Ultimate long-term strength Unfrozen water content Mine shaft |
| title | Influence of soil salinity on the bearing capacity of the frozen wall |
| title_full | Influence of soil salinity on the bearing capacity of the frozen wall |
| title_fullStr | Influence of soil salinity on the bearing capacity of the frozen wall |
| title_full_unstemmed | Influence of soil salinity on the bearing capacity of the frozen wall |
| title_short | Influence of soil salinity on the bearing capacity of the frozen wall |
| title_sort | influence of soil salinity on the bearing capacity of the frozen wall |
| topic | Artificial ground freezing Frozen wall Dissolved salt Ultimate long-term strength Unfrozen water content Mine shaft |
| url | https://fracturae.com/index.php/fis/article/view/4878 |
| work_keys_str_mv | AT mikhailsemin influenceofsoilsalinityonthebearingcapacityofthefrozenwall AT levlevin influenceofsoilsalinityonthebearingcapacityofthefrozenwall AT sergeybublik influenceofsoilsalinityonthebearingcapacityofthefrozenwall AT andreybrovka influenceofsoilsalinityonthebearingcapacityofthefrozenwall AT ivandedyulya influenceofsoilsalinityonthebearingcapacityofthefrozenwall |