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Consolidation of Soft Sediments Using Artificial Ground Freezing
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. (Soil Mechanics)
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Freeze-thaw cycling is investigated as a possible method for consolidation of fine grained soils. The method relies mainly on phenomena of thaw consolidation. While the soil is subjected to multiple freeze-thaw cycles the water is pressed out of the material as the excess pore pressure dissipates. To prove that this phenomenon can be used to consolidate fine grained soils several laboratory tests are conducted. Oedometer test are conducted with alternating freeze-thaw cycles at different load. Unconfined soil specimens are also frozen to assess the effect of freeze-thaw cycling on plastic and liquid limit and also to determine how much free water is produced in the process. A larger scale test is conducted to provide a better understanding about how the method could work in reality. It is proven that it is possible to significantly lower the water content of the tested material by using freeze-thaw cycles. It is concluded that liquid and plastic limits as well as the void ratio of the material decrease with increasing number of freeze-thaw cycles.

Place, publisher, year, edition, pages
2017.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-66574OAI: oai:DiVA.org:ltu-66574DiVA, id: diva2:1156640
Subject / course
Student thesis, at least 30 credits
Educational program
Civil Engineering, master's level (120 credits)
Presentation
(English)
Supervisors
Examiners
Available from: 2017-11-17 Created: 2017-11-13 Last updated: 2017-11-17Bibliographically approved

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fulltext(3376 kB)32 downloads
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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