File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1061/(ASCE)GT.1943-5606.0000971
- Scopus: eid_2-s2.0-84891080113
- WOS: WOS:000328556900013
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Failure modes of sand in undrained cyclic loading: impact of sample preparation
Title | Failure modes of sand in undrained cyclic loading: impact of sample preparation |
---|---|
Authors | |
Keywords | Cyclic strength Failure Laboratory tests Sand (soil type) Soil fabric Soil liquefaction |
Issue Date | 2014 |
Citation | Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2014, v. 140 n. 1, p. 152-169 How to Cite? |
Abstract | This paper presents a systematic experimental investigation into the impact of specimen preparation on the cyclic loading behavior of saturated sand, including the deformation pattern, pore-water pressure generation, stress-strain relationship, and cyclic shear strength. Moist tamping and dry deposition were used in the laboratory to prepare sand specimens with distinct fabrics for cyclic triaxial tests under a range of conditions. It is found that the soil fabric formed by dry deposition can lead to unique failure modes different from those of moist-tamped samples in certain situations. These failure modes are hybrid in nature, characterized by a contractive response in the form of limited flow followed by cyclic strain hardening in the form of either cyclic mobility or plastic-strain accumulation. The hybrid nature of the failure patterns makes defining failure for liquefaction-resistance evaluation crucial; the conventional failure criteria based on a certain level of strain or pore-water pressure do not appear to properly represent the failure mechanism involved and may lead to a substantial overestimation of liquefaction resistance. The experiments reveal that the method used to reconstitute specimens or the soil fabric they form plays a role that is far more complicated than previously thought. Depending on the combination of relative density, confining stress, and degree of stress reversal in cyclic loading, a change of reconstitution method can have a marked or little effect on the nature of the response in terms of deformation pattern and failure mechanism; nevertheless, the two reconstitution methods always give significantly different liquefaction-resistance values under otherwise similar testing conditions. © 2014 American Society of Civil Engineers. |
Persistent Identifier | http://hdl.handle.net/10722/202668 |
ISSN | 2023 Impact Factor: 3.9 2023 SCImago Journal Rankings: 1.671 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sze, HY | en_US |
dc.contributor.author | Yang, J | en_US |
dc.date.accessioned | 2014-09-19T09:14:14Z | - |
dc.date.available | 2014-09-19T09:14:14Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.citation | Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2014, v. 140 n. 1, p. 152-169 | en_US |
dc.identifier.issn | 1090-0241 | - |
dc.identifier.uri | http://hdl.handle.net/10722/202668 | - |
dc.description.abstract | This paper presents a systematic experimental investigation into the impact of specimen preparation on the cyclic loading behavior of saturated sand, including the deformation pattern, pore-water pressure generation, stress-strain relationship, and cyclic shear strength. Moist tamping and dry deposition were used in the laboratory to prepare sand specimens with distinct fabrics for cyclic triaxial tests under a range of conditions. It is found that the soil fabric formed by dry deposition can lead to unique failure modes different from those of moist-tamped samples in certain situations. These failure modes are hybrid in nature, characterized by a contractive response in the form of limited flow followed by cyclic strain hardening in the form of either cyclic mobility or plastic-strain accumulation. The hybrid nature of the failure patterns makes defining failure for liquefaction-resistance evaluation crucial; the conventional failure criteria based on a certain level of strain or pore-water pressure do not appear to properly represent the failure mechanism involved and may lead to a substantial overestimation of liquefaction resistance. The experiments reveal that the method used to reconstitute specimens or the soil fabric they form plays a role that is far more complicated than previously thought. Depending on the combination of relative density, confining stress, and degree of stress reversal in cyclic loading, a change of reconstitution method can have a marked or little effect on the nature of the response in terms of deformation pattern and failure mechanism; nevertheless, the two reconstitution methods always give significantly different liquefaction-resistance values under otherwise similar testing conditions. © 2014 American Society of Civil Engineers. | - |
dc.language | eng | en_US |
dc.relation.ispartof | Journal of Geotechnical and Geoenvironmental Engineering, ASCE | en_US |
dc.subject | Cyclic strength | - |
dc.subject | Failure | - |
dc.subject | Laboratory tests | - |
dc.subject | Sand (soil type) | - |
dc.subject | Soil fabric | - |
dc.subject | Soil liquefaction | - |
dc.title | Failure modes of sand in undrained cyclic loading: impact of sample preparation | en_US |
dc.type | Article | en_US |
dc.identifier.email | Sze, HY: szehy@hku.hk | en_US |
dc.identifier.email | Yang, J: junyang@hkucc.hku.hk | en_US |
dc.identifier.authority | Yang, J=rp00201 | en_US |
dc.identifier.doi | 10.1061/(ASCE)GT.1943-5606.0000971 | - |
dc.identifier.scopus | eid_2-s2.0-84891080113 | - |
dc.identifier.hkuros | 236355 | en_US |
dc.identifier.volume | 140 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 152 | en_US |
dc.identifier.epage | 169 | en_US |
dc.identifier.isi | WOS:000328556900013 | - |
dc.identifier.issnl | 1090-0241 | - |