LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING
Cyclic response of saturated sands has become one of the most popular topics in geotechnical earthquake engineering due to the consequent damages of earthquakes. Related to this topic, detailed performance of offshore structures founded on saturated sands under the effect of cyclic loads carries vit...
Main Authors: | , , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
2009
|
Subjects: | |
Online Access: | https://hdl.handle.net/11511/54874 |
id |
ftmetuankair:oai:open.metu.edu.tr:11511/54874 |
---|---|
record_format |
openpolar |
spelling |
ftmetuankair:oai:open.metu.edu.tr:11511/54874 2023-05-15T14:25:33+02:00 LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING Bilge, Habib Tolga Unutmaz, Berna Yunatci, A. Anil Yunatci, Ipek Çetin, Kemal Önder 2009-06-05 https://hdl.handle.net/11511/54874 unknown Bilge H. T. , Unutmaz B., Yunatci A. A. , Yunatci I., Cetin K. O. , "LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING", 28th International Conference on Ocean, Offshore and Arctic Engineering, Hawaii, Amerika Birleşik Devletleri, 31 Mayıs - 05 Haziran 2009, ss.361-366 77953762755 https://hdl.handle.net/11511/54874 WOS:000283008100044 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Conference Paper 2009 ftmetuankair 2020-10-28T15:30:16Z Cyclic response of saturated sands has become one of the most popular topics in geotechnical earthquake engineering due to the consequent damages of earthquakes. Related to this topic, detailed performance of offshore structures founded on saturated sands under the effect of cyclic loads carries vital economic importance. It is well-known that besides seismic loading; storm, wind and/or submarine slope failures have direct effect on the strength and deformation behavior of soils through induced sea-level variations. This study summarizes the results of a series of cyclic triaxial tests performed to simulate the behavior of fully-saturated coarse grained sands under wave-induced cyclic loading. Evaluating the excess pore water pressure generation and shear strain accumulation response along with the number of cycles required for liquefaction triggering for sands, having different relative densities, and being subjected to various cyclic shear stress ratios (CSR), the following observations are made; i) number of cycles to liquefaction increases with increasing relative density and decreasing CSR, ii) for medium dense foundation and backfill soils, liquefaction is not triggered for CSR values less than 0.1 under reasonable number of cycles, and iii) number of cycles to liquefaction decreases significantly for soils subjected to CSR values exceeding of 0.25. These results were used to express the effects of the variation in water level and liquefaction triggering response in terms of in-situ test data, wave height and number of waves for the granular backfill of a sample offshore structure. Conference Object Arctic OpenMETU (Middle East Technical University) |
institution |
Open Polar |
collection |
OpenMETU (Middle East Technical University) |
op_collection_id |
ftmetuankair |
language |
unknown |
description |
Cyclic response of saturated sands has become one of the most popular topics in geotechnical earthquake engineering due to the consequent damages of earthquakes. Related to this topic, detailed performance of offshore structures founded on saturated sands under the effect of cyclic loads carries vital economic importance. It is well-known that besides seismic loading; storm, wind and/or submarine slope failures have direct effect on the strength and deformation behavior of soils through induced sea-level variations. This study summarizes the results of a series of cyclic triaxial tests performed to simulate the behavior of fully-saturated coarse grained sands under wave-induced cyclic loading. Evaluating the excess pore water pressure generation and shear strain accumulation response along with the number of cycles required for liquefaction triggering for sands, having different relative densities, and being subjected to various cyclic shear stress ratios (CSR), the following observations are made; i) number of cycles to liquefaction increases with increasing relative density and decreasing CSR, ii) for medium dense foundation and backfill soils, liquefaction is not triggered for CSR values less than 0.1 under reasonable number of cycles, and iii) number of cycles to liquefaction decreases significantly for soils subjected to CSR values exceeding of 0.25. These results were used to express the effects of the variation in water level and liquefaction triggering response in terms of in-situ test data, wave height and number of waves for the granular backfill of a sample offshore structure. |
format |
Conference Object |
author |
Bilge, Habib Tolga Unutmaz, Berna Yunatci, A. Anil Yunatci, Ipek Çetin, Kemal Önder |
spellingShingle |
Bilge, Habib Tolga Unutmaz, Berna Yunatci, A. Anil Yunatci, Ipek Çetin, Kemal Önder LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
author_facet |
Bilge, Habib Tolga Unutmaz, Berna Yunatci, A. Anil Yunatci, Ipek Çetin, Kemal Önder |
author_sort |
Bilge, Habib Tolga |
title |
LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
title_short |
LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
title_full |
LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
title_fullStr |
LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
title_full_unstemmed |
LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING |
title_sort |
liquefaction triggering response under wave-induced cyclic loading |
publishDate |
2009 |
url |
https://hdl.handle.net/11511/54874 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Bilge H. T. , Unutmaz B., Yunatci A. A. , Yunatci I., Cetin K. O. , "LIQUEFACTION TRIGGERING RESPONSE UNDER WAVE-INDUCED CYCLIC LOADING", 28th International Conference on Ocean, Offshore and Arctic Engineering, Hawaii, Amerika Birleşik Devletleri, 31 Mayıs - 05 Haziran 2009, ss.361-366 77953762755 https://hdl.handle.net/11511/54874 WOS:000283008100044 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766297993979363328 |