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http://dx.doi.org/10.14481/jkges.2015.16.5.55

Effects of Flow Direction and Consolidation Pressure on Hydraulic Resistance Capacity of Soils  

Kim, Youngsang (Department of Marne and Civil Engineering, Jeonnam National University)
Jeong, Shinhyun (Dong-A Engineering CO. Ltd.)
Lee, Changho (Department of Marne and Civil Engineering, Jeonnam National University)
Publication Information
Journal of the Korean GEO-environmental Society / v.16, no.5, 2015 , pp. 55-66 More about this Journal
Abstract
Big tidal differences, which range from 3.0 m to 8.0 m, exist with regional locations at south and west shores of Korea. Under this ocean circumstance, since a large scour may occur due to multi-directional tidal current and transverse stress of the wind, the scour surrounding the wind turbine structure can make instability of the system due to unexpected system vibration. The hydraulic resistance capacity of soils consolidated under different pressures are evaluated by Erosion Function Apparatus (EFA) under unidirectional and bi-directional flows in this study. It was found that the flow direction change affects significantly on the sour rate and critical shear stress, regardless of soil types while the consolidation pressure affects mainly cohesive soil. Among geotechnical parameters, the undrained shear strength can be well-correlated with the hydraulic resistance capacity, regardless soil type while the shear wave velocity shows the proportional relationships with the hydraulic resistance capacities of fine grained soil and coarse grained soil, respectively.
Keywords
Flow direction; Consolidation pressure; Hydraulic resistance capacity; Erosion function apparatus (EFA); Shear wave velocity;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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