Liquefaction response of reclaimed soils from effective stress analysis
One-dimensional (1D) dynamic effective stress site response analysis (ESA) is performed for profiles at the port of Wellington, New Zealand (CentrePort), which contains reclamation fills comprised of gravel-sand-silt (G-S-S) mixtures and hydraulic fills. The first phase of the study realistically si...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Soils and Foundations |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0038080625001118 |
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| author | Riwaj Dhakal Misko Cubrinovski |
| author_facet | Riwaj Dhakal Misko Cubrinovski |
| author_sort | Riwaj Dhakal |
| collection | DOAJ |
| description | One-dimensional (1D) dynamic effective stress site response analysis (ESA) is performed for profiles at the port of Wellington, New Zealand (CentrePort), which contains reclamation fills comprised of gravel-sand-silt (G-S-S) mixtures and hydraulic fills. The first phase of the study realistically simulates three recent earthquake case histories while considering modelling uncertainties by using the PM4Sand and the Stress-Density constitutive models. The results illustrate possible mechanisms explaining the severity of liquefaction manifestation and soil ejecta characteristics observed in G-S-S fills through careful engineering interpretation of the response. Challenges for 1D ESA to explain complex manifestation patterns affected by two-dimensional variability in fill composition and response characteristics are illustrated for the hydraulic fills. In the second phase of analyses, ESA-based response measures are proposed to quantify the severity of the liquefaction response for a range of input seismic demands. The response characteristics show very small scatter despite using a range of different input ground motions and two soil constitutive models. Results illustrate the capability of ESA to capture details of the liquefaction response such as the similar threshold seismic intensity for liquefaction triggering of the loosely deposited fills, different maximum response of the sites reflecting the differences in the thicknesses of the fills, and the evolution of the response from triggering to maximum reflecting differences in depositional characteristics. |
| format | Article |
| id | doaj-art-102711b6b8c048e88eae993923f9c8be |
| institution | Kabale University |
| issn | 2524-1788 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Soils and Foundations |
| spelling | doaj-art-102711b6b8c048e88eae993923f9c8be2025-08-24T05:11:15ZengElsevierSoils and Foundations2524-17882025-09-0165510167710.1016/j.sandf.2025.101677Liquefaction response of reclaimed soils from effective stress analysisRiwaj Dhakal0Misko Cubrinovski1Corresponding author.; University of Canterbury, Civil and Natural Resources Engineering, Private Bag 4800, Christchurch, New ZealandUniversity of Canterbury, Civil and Natural Resources Engineering, Private Bag 4800, Christchurch, New ZealandOne-dimensional (1D) dynamic effective stress site response analysis (ESA) is performed for profiles at the port of Wellington, New Zealand (CentrePort), which contains reclamation fills comprised of gravel-sand-silt (G-S-S) mixtures and hydraulic fills. The first phase of the study realistically simulates three recent earthquake case histories while considering modelling uncertainties by using the PM4Sand and the Stress-Density constitutive models. The results illustrate possible mechanisms explaining the severity of liquefaction manifestation and soil ejecta characteristics observed in G-S-S fills through careful engineering interpretation of the response. Challenges for 1D ESA to explain complex manifestation patterns affected by two-dimensional variability in fill composition and response characteristics are illustrated for the hydraulic fills. In the second phase of analyses, ESA-based response measures are proposed to quantify the severity of the liquefaction response for a range of input seismic demands. The response characteristics show very small scatter despite using a range of different input ground motions and two soil constitutive models. Results illustrate the capability of ESA to capture details of the liquefaction response such as the similar threshold seismic intensity for liquefaction triggering of the loosely deposited fills, different maximum response of the sites reflecting the differences in the thicknesses of the fills, and the evolution of the response from triggering to maximum reflecting differences in depositional characteristics.http://www.sciencedirect.com/science/article/pii/S0038080625001118LiquefactionReclaimed soilEffective stress analysisCase historyResponse measure |
| spellingShingle | Riwaj Dhakal Misko Cubrinovski Liquefaction response of reclaimed soils from effective stress analysis Soils and Foundations Liquefaction Reclaimed soil Effective stress analysis Case history Response measure |
| title | Liquefaction response of reclaimed soils from effective stress analysis |
| title_full | Liquefaction response of reclaimed soils from effective stress analysis |
| title_fullStr | Liquefaction response of reclaimed soils from effective stress analysis |
| title_full_unstemmed | Liquefaction response of reclaimed soils from effective stress analysis |
| title_short | Liquefaction response of reclaimed soils from effective stress analysis |
| title_sort | liquefaction response of reclaimed soils from effective stress analysis |
| topic | Liquefaction Reclaimed soil Effective stress analysis Case history Response measure |
| url | http://www.sciencedirect.com/science/article/pii/S0038080625001118 |
| work_keys_str_mv | AT riwajdhakal liquefactionresponseofreclaimedsoilsfromeffectivestressanalysis AT miskocubrinovski liquefactionresponseofreclaimedsoilsfromeffectivestressanalysis |