Abstract
The unique material properties of volcanic soils may cause stability problems within the soil. However, few studies have examined the composition and engineering characteristics of volcanic soils below sea level. The objective of this study is to investigate the engineering properties of volcanic soils sampled from Ulleung Island. For the volcanic soils, the index properties, particle geometry, and mineralogy are analyzed in the laboratory. An oedometer cell incorporated with bender elements is used to measure the small-strain stiffness and compressibility of the volcanic soils. To obtain the large strain strength parameter and hydraulic conductivity of the volcanic soils, direct shear tests, and constant head permeability tests are performed. The experimental results show that the basic index properties of volcanic soils sampled from Ulleung Island are very similar to the values of previously published reference data: poorly graded with a median grain size, very low fine fraction, and slightly high specific gravity. In addition, the particle surface texture features and elementary analysis indicates a dark grain color, small pits or holes in the grain, and relatively low SiO2 and high Fe2O3 contents. The friction angle of the volcanic soils depends on the relative density, and the hydraulic conductivity varies according to e3/(1 + e) and D10 2. The characterization of the electrical properties in Ulleung Island needs to be conducted with caution due to the high Fe2O3 content in the volcanic soils.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Marine Georesources and Geotechnology |
| DOIs | |
| Publication status | Accepted/In press - 2015 Dec 10 |
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Keywords
- electrical resistivity
- engineering properties
- small-strain stiffness
- Ulleung Island
- volcanic soil
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Oceanography
- Ocean Engineering
Cite this
Geotechnical and Geoacoustic Properties of Volcanic Soil in Ulleung Island, East Sea of Korea. / Lee, Changho; Byun, Yong Hoon; Lee, Jong-Sub.
In: Marine Georesources and Geotechnology, 10.12.2015, p. 1-9.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Geotechnical and Geoacoustic Properties of Volcanic Soil in Ulleung Island, East Sea of Korea
AU - Lee, Changho
AU - Byun, Yong Hoon
AU - Lee, Jong-Sub
PY - 2015/12/10
Y1 - 2015/12/10
N2 - The unique material properties of volcanic soils may cause stability problems within the soil. However, few studies have examined the composition and engineering characteristics of volcanic soils below sea level. The objective of this study is to investigate the engineering properties of volcanic soils sampled from Ulleung Island. For the volcanic soils, the index properties, particle geometry, and mineralogy are analyzed in the laboratory. An oedometer cell incorporated with bender elements is used to measure the small-strain stiffness and compressibility of the volcanic soils. To obtain the large strain strength parameter and hydraulic conductivity of the volcanic soils, direct shear tests, and constant head permeability tests are performed. The experimental results show that the basic index properties of volcanic soils sampled from Ulleung Island are very similar to the values of previously published reference data: poorly graded with a median grain size, very low fine fraction, and slightly high specific gravity. In addition, the particle surface texture features and elementary analysis indicates a dark grain color, small pits or holes in the grain, and relatively low SiO2 and high Fe2O3 contents. The friction angle of the volcanic soils depends on the relative density, and the hydraulic conductivity varies according to e3/(1 + e) and D10 2. The characterization of the electrical properties in Ulleung Island needs to be conducted with caution due to the high Fe2O3 content in the volcanic soils.
AB - The unique material properties of volcanic soils may cause stability problems within the soil. However, few studies have examined the composition and engineering characteristics of volcanic soils below sea level. The objective of this study is to investigate the engineering properties of volcanic soils sampled from Ulleung Island. For the volcanic soils, the index properties, particle geometry, and mineralogy are analyzed in the laboratory. An oedometer cell incorporated with bender elements is used to measure the small-strain stiffness and compressibility of the volcanic soils. To obtain the large strain strength parameter and hydraulic conductivity of the volcanic soils, direct shear tests, and constant head permeability tests are performed. The experimental results show that the basic index properties of volcanic soils sampled from Ulleung Island are very similar to the values of previously published reference data: poorly graded with a median grain size, very low fine fraction, and slightly high specific gravity. In addition, the particle surface texture features and elementary analysis indicates a dark grain color, small pits or holes in the grain, and relatively low SiO2 and high Fe2O3 contents. The friction angle of the volcanic soils depends on the relative density, and the hydraulic conductivity varies according to e3/(1 + e) and D10 2. The characterization of the electrical properties in Ulleung Island needs to be conducted with caution due to the high Fe2O3 content in the volcanic soils.
KW - electrical resistivity
KW - engineering properties
KW - small-strain stiffness
KW - Ulleung Island
KW - volcanic soil
UR - http://www.scopus.com/inward/record.url?scp=84949783697&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949783697&partnerID=8YFLogxK
U2 - 10.1080/1064119X.2015.1070387
DO - 10.1080/1064119X.2015.1070387
M3 - Article
AN - SCOPUS:84949783697
SP - 1
EP - 9
JO - Marine Georesources and Geotechnology
JF - Marine Georesources and Geotechnology
SN - 1064-119X
ER -