A semi-empirical relationship for the small-strain shear modulus of soft clays
The small-strain shear modulus (Gmax) is a soil property that has many practical applications. The authors compiled a database of Gmax measurements for 40 normally consolidated to slightly overconsolidated low to high plasticity clays. Using these data, the authors propose a semi-empirical relations...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
EDP Sciences
2019-01-01
|
Series: | E3S Web of Conferences |
Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_04005.pdf |
id |
doaj-cf558bbf0e854c11be36f119d06050e4 |
---|---|
record_format |
Article |
spelling |
doaj-cf558bbf0e854c11be36f119d06050e42021-02-02T02:45:45ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01920400510.1051/e3sconf/20199204005e3sconf_isg2019_04005A semi-empirical relationship for the small-strain shear modulus of soft claysTaukoor VashishRutherford Cassandra J.Olson Scott M.The small-strain shear modulus (Gmax) is a soil property that has many practical applications. The authors compiled a database of Gmax measurements for 40 normally consolidated to slightly overconsolidated low to high plasticity clays. Using these data, the authors propose a semi-empirical relationship between Gmax, effective stress (σ'v or σ'c), preconsolidation stress (σ'p) and in-situ void ratio (e0) for four ranges of plasticity index (Ip): Ip < 30%, 30% ≤ Ip < 50%, 50% ≤ Ip < 80% and 80% ≤ Ip < 120%. With results from bender element tests on a Gulf of Mexico clay subjected to multiple load-unload consolidation loops, the authors were able to validate the proposed relationships for 30% ≤ Ip < 50% and 50% ≤ Ip < 80%. The proposed relationship for 30% ≤ Ip < 50% and 50% ≤ Ip < 80% captures changes in laboratory Gmax resulting from variations in effective stress (σ'c), maximum past stress (σ'v,max), and void ratio. The proposed relationships are a simple and efficient tool that can provide independent insight on Gmax if the stress history of a clay is known, or on stress history if Gmax is known.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_04005.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Taukoor Vashish Rutherford Cassandra J. Olson Scott M. |
spellingShingle |
Taukoor Vashish Rutherford Cassandra J. Olson Scott M. A semi-empirical relationship for the small-strain shear modulus of soft clays E3S Web of Conferences |
author_facet |
Taukoor Vashish Rutherford Cassandra J. Olson Scott M. |
author_sort |
Taukoor Vashish |
title |
A semi-empirical relationship for the small-strain shear modulus of soft clays |
title_short |
A semi-empirical relationship for the small-strain shear modulus of soft clays |
title_full |
A semi-empirical relationship for the small-strain shear modulus of soft clays |
title_fullStr |
A semi-empirical relationship for the small-strain shear modulus of soft clays |
title_full_unstemmed |
A semi-empirical relationship for the small-strain shear modulus of soft clays |
title_sort |
semi-empirical relationship for the small-strain shear modulus of soft clays |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2019-01-01 |
description |
The small-strain shear modulus (Gmax) is a soil property that has many practical applications. The authors compiled a database of Gmax measurements for 40 normally consolidated to slightly overconsolidated low to high plasticity clays. Using these data, the authors propose a semi-empirical relationship between Gmax, effective stress (σ'v or σ'c), preconsolidation stress (σ'p) and in-situ void ratio (e0) for four ranges of plasticity index (Ip): Ip < 30%, 30% ≤ Ip < 50%, 50% ≤ Ip < 80% and 80% ≤ Ip < 120%. With results from bender element tests on a Gulf of Mexico clay subjected to multiple load-unload consolidation loops, the authors were able to validate the proposed relationships for 30% ≤ Ip < 50% and 50% ≤ Ip < 80%. The proposed relationship for 30% ≤ Ip < 50% and 50% ≤ Ip < 80% captures changes in laboratory Gmax resulting from variations in effective stress (σ'c), maximum past stress (σ'v,max), and void ratio. The proposed relationships are a simple and efficient tool that can provide independent insight on Gmax if the stress history of a clay is known, or on stress history if Gmax is known. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_04005.pdf |
work_keys_str_mv |
AT taukoorvashish asemiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays AT rutherfordcassandraj asemiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays AT olsonscottm asemiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays AT taukoorvashish semiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays AT rutherfordcassandraj semiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays AT olsonscottm semiempiricalrelationshipforthesmallstrainshearmodulusofsoftclays |
_version_ |
1724309311605178368 |