Partially-drained loading of shallow foundations on sand
Wave loading on offshore structures that are founded on sand can result in a partially-drained response of the foundation soil. The characteristics of the rate of loading, the permeability of the soil, and the size of the foundation affect the degree of partial drainage. Partial drainage refers to s...
| Main Authors: | , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Offshore Technol Conf
1999
|
| _version_ | 1826299982309752832 |
|---|---|
| author | Mangal, J Houlsby, G |
| author_facet | Mangal, J Houlsby, G |
| author_sort | Mangal, J |
| collection | OXFORD |
| description | Wave loading on offshore structures that are founded on sand can result in a partially-drained response of the foundation soil. The characteristics of the rate of loading, the permeability of the soil, and the size of the foundation affect the degree of partial drainage. Partial drainage refers to situations where pore pressures develop in the soil, and the response of the soil is neither fully drained nor undrained. This paper is concerned with the effects of loading rate, and consequent drainage, on the behaviour of a flat circular footing that is founded on the surface of a saturated sand base. The results of physical tests performed in the laboratory on a model-size footing are reported. The footing was founded on oil-saturated fine sand and was subjected to partially-drained vertical as well as combined loading. The effect of the vertical displacement rate are reported. The response of the footing is analysed in the context of existing drained foundation models that are based on work hardening plasticity theory. The rate dependency of the vertical load: deformation behaviour is examined in detail and the effects of rate on combined load yield surfaces are briefly described. |
| first_indexed | 2024-03-07T05:10:12Z |
| format | Journal article |
| id | oxford-uuid:db4c4bdf-f0f4-4513-98d2-b0ec3a440903 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:10:12Z |
| publishDate | 1999 |
| publisher | Offshore Technol Conf |
| record_format | dspace |
| spelling | oxford-uuid:db4c4bdf-f0f4-4513-98d2-b0ec3a4409032022-03-27T09:09:34ZPartially-drained loading of shallow foundations on sandJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:db4c4bdf-f0f4-4513-98d2-b0ec3a440903EnglishSymplectic Elements at OxfordOffshore Technol Conf1999Mangal, JHoulsby, GWave loading on offshore structures that are founded on sand can result in a partially-drained response of the foundation soil. The characteristics of the rate of loading, the permeability of the soil, and the size of the foundation affect the degree of partial drainage. Partial drainage refers to situations where pore pressures develop in the soil, and the response of the soil is neither fully drained nor undrained. This paper is concerned with the effects of loading rate, and consequent drainage, on the behaviour of a flat circular footing that is founded on the surface of a saturated sand base. The results of physical tests performed in the laboratory on a model-size footing are reported. The footing was founded on oil-saturated fine sand and was subjected to partially-drained vertical as well as combined loading. The effect of the vertical displacement rate are reported. The response of the footing is analysed in the context of existing drained foundation models that are based on work hardening plasticity theory. The rate dependency of the vertical load: deformation behaviour is examined in detail and the effects of rate on combined load yield surfaces are briefly described. |
| spellingShingle | Mangal, J Houlsby, G Partially-drained loading of shallow foundations on sand |
| title | Partially-drained loading of shallow foundations on sand |
| title_full | Partially-drained loading of shallow foundations on sand |
| title_fullStr | Partially-drained loading of shallow foundations on sand |
| title_full_unstemmed | Partially-drained loading of shallow foundations on sand |
| title_short | Partially-drained loading of shallow foundations on sand |
| title_sort | partially drained loading of shallow foundations on sand |
| work_keys_str_mv | AT mangalj partiallydrainedloadingofshallowfoundationsonsand AT houlsbyg partiallydrainedloadingofshallowfoundationsonsand |