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http://dx.doi.org/10.7846/JKOSMEE.2016.19.2.137

Survey of Sedimentary Environment and Sediment at the West-Northern Site of Chagwi-do nearby Jeju Island  

Kim, Hansoo (Department of Ocean System Engineering, Jeju National University)
Hyeon, Jong-Wu (Blue Korea Innovation Ltd.)
Jin, Changzhu (Department of Ocean System Engineering, Jeju National University)
Kim, Jeongrok (Department of Ocean System Engineering, Jeju National University)
Cho, Il-Hyoung (Department of Ocean System Engineering, Jeju National University)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.19, no.2, 2016 , pp. 137-143 More about this Journal
Abstract
The sedimentary environment and sediment were surveyed at the West-Northern site of Chagwi-do nearby Jeju Island for the design of the embedded suction anchor system of 10 MW-class floating wave-offshore wind hybrid power generation system. According to the classification scheme of Chough et al.[2002], the echo type of the seismic profiles using the chirp III was classified. As a results, the center and west-northern area of survey site were proved to be type I-3 where subbottom layer with thickness 5~15 m exists under the flat seafloor. On the other hands, the east-southern area were regarded to be type I-1, I-2 and III-1 where seafloor reflection is much stronger than type I-3. Also, the physical tests (unit weight, moisture content, grain size, liquid limit, specific gravity) were performed with samples taken from 8 fixed locations. It is found that the sand (SP), the sand blended with silt (SM) and the mixture of SP-SM are distributed uniformly on the survey area.
Keywords
Sediment; Anchor system; Seismic profiles; Gravity core sampler; Subbottom layer;
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Times Cited By KSCI : 1  (Citation Analysis)
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