Abstract
A series of 1-D consolidation tests are performed on the undisturbed and remolded specimens for Busan and Incheon clays in order to propose empirical correlations predicting the compression index of natural clays. For both clays, the compression index is found to correlate best with wnand to have the weakest correlation with ILamong the four soil properties (wL, Ip, wn, IL). It is observed that, for Incheon clay, the multi-variable equation (wLand wn) moderately improves the accuracy of the empirical correlation, while, for Busan clay, it provides negligible improvement compared with the equations with a single soil property. In this study, the sedimentation state of natural clay is defined as the difference in the void ratio between the natural and remolded clays at yield stress (Δer,), and the prediction equations that can consider the sedimentation state are suggested. It is noted that, for Busan clay, the equations considering the sedimentation state provide a significantly better accuracy than the equations with multiple soil properties, whereas, for Incheon clay, both types of equations provide a similar accuracy.
| Original language | English |
|---|---|
| Pages (from-to) | 23-32 |
| Number of pages | 10 |
| Journal | Marine Georesources and Geotechnology |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
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ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Oceanography
- Ocean Engineering
Cite this
Assessment of Compression Index of Busan and Incheon Clays with Sedimentation State. / Lee, Changho; Hong, Sung Jin; Kim, Donghee; Lee, Woojin.
In: Marine Georesources and Geotechnology, Vol. 33, No. 1, 01.01.2015, p. 23-32.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Assessment of Compression Index of Busan and Incheon Clays with Sedimentation State
AU - Lee, Changho
AU - Hong, Sung Jin
AU - Kim, Donghee
AU - Lee, Woojin
PY - 2015/1/1
Y1 - 2015/1/1
N2 - A series of 1-D consolidation tests are performed on the undisturbed and remolded specimens for Busan and Incheon clays in order to propose empirical correlations predicting the compression index of natural clays. For both clays, the compression index is found to correlate best with wnand to have the weakest correlation with ILamong the four soil properties (wL, Ip, wn, IL). It is observed that, for Incheon clay, the multi-variable equation (wLand wn) moderately improves the accuracy of the empirical correlation, while, for Busan clay, it provides negligible improvement compared with the equations with a single soil property. In this study, the sedimentation state of natural clay is defined as the difference in the void ratio between the natural and remolded clays at yield stress (Δer,), and the prediction equations that can consider the sedimentation state are suggested. It is noted that, for Busan clay, the equations considering the sedimentation state provide a significantly better accuracy than the equations with multiple soil properties, whereas, for Incheon clay, both types of equations provide a similar accuracy.
AB - A series of 1-D consolidation tests are performed on the undisturbed and remolded specimens for Busan and Incheon clays in order to propose empirical correlations predicting the compression index of natural clays. For both clays, the compression index is found to correlate best with wnand to have the weakest correlation with ILamong the four soil properties (wL, Ip, wn, IL). It is observed that, for Incheon clay, the multi-variable equation (wLand wn) moderately improves the accuracy of the empirical correlation, while, for Busan clay, it provides negligible improvement compared with the equations with a single soil property. In this study, the sedimentation state of natural clay is defined as the difference in the void ratio between the natural and remolded clays at yield stress (Δer,), and the prediction equations that can consider the sedimentation state are suggested. It is noted that, for Busan clay, the equations considering the sedimentation state provide a significantly better accuracy than the equations with multiple soil properties, whereas, for Incheon clay, both types of equations provide a similar accuracy.
KW - Compression index
KW - consolidation test
KW - remolded clay
KW - sedimentation state
UR - http://www.scopus.com/inward/record.url?scp=84907291986&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907291986&partnerID=8YFLogxK
U2 - 10.1080/1064119X.2013.764947
DO - 10.1080/1064119X.2013.764947
M3 - Article
AN - SCOPUS:84907291986
VL - 33
SP - 23
EP - 32
JO - Marine Georesources and Geotechnology
JF - Marine Georesources and Geotechnology
SN - 1064-119X
IS - 1
ER -