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https://scholarbank.nus.edu.sg/handle/10635/237659
DC Field | Value | |
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dc.title | COMPRESSIBILITY OF EXCAVATED AND DREDGED MATERIALS | |
dc.contributor.author | NICOLAS GABRIEL LEE LIN HAO | |
dc.date.accessioned | 2023-02-28T18:00:28Z | |
dc.date.available | 2023-02-28T18:00:28Z | |
dc.date.issued | 2022-08-04 | |
dc.identifier.citation | NICOLAS GABRIEL LEE LIN HAO (2022-08-04). COMPRESSIBILITY OF EXCAVATED AND DREDGED MATERIALS. ScholarBank@NUS Repository. | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/237659 | |
dc.description.abstract | The inclusion of fine-grained soils in reclamation fill presents greater concerns towards long-term creep settlement. This is often improved through surcharge-induced overconsolidation, largely correlated with the OCR parameter. However, OCR alone does not account for the magnitude of the maximum and minimum stresses in the unload-reload cycle, which have been observed to affect primary compression. Understanding the interrelationship between primary and secondary compressibility suggests a corresponding influence on creep improvement. Oedometer tests conducted on a reconstituted clayey soil suggested that an increase in σ’v,max and σ’v,max/σ’v,min each result in less creep reduction at a given OCR, owing to stiffness degradation along the reloading path. Two unique Cα’/Cr values were observed depending on the number of reloading steps. When a single step was applied from unloading, relatively higher Cα’/Cr values were consistently observed. Once preceding reloading steps were introduced, Cα’/Cr was consistent with the Cα/Cc ratio measured in virgin compression. | |
dc.language.iso | en | |
dc.subject | oedometer, clay, compressibility, creep, overconsolidation, unload-reload | |
dc.type | Thesis | |
dc.contributor.department | CIVIL & ENVIRONMENTAL ENGINEERING | |
dc.contributor.supervisor | Siau Chen Chian | |
dc.description.degree | Master's | |
dc.description.degreeconferred | MASTER OF ENGINEERING (CDE) | |
Appears in Collections: | Master's Theses (Open) |
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File | Description | Size | Format | Access Settings | Version | |
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NL MEng Thesis - Final - Amended 08.01.23.pdf | 1.45 MB | Adobe PDF | OPEN | None | View/Download |
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