Behavior of Currents and Suspended Sediments around a Silt Screen

The behavior of Suspended Sediment Concentrations (SSC) around a silt screen in a microtidal coastal area was hydrodynamically measured. The current speed at the mid-layer about 30 m downstream of the screen reduces to about half that at the same distance upstream. It was caused by the contraction o...

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Veröffentlicht in:Ocean and polar research 2003-12, Vol.25 (spc3), p.399-408
Hauptverfasser: Jin, Jae-Youll, Chae, Jang-Won, Song, Won-Oh, Park, Jin-Soon, Kim, Sung-Eun, Jeong, Weon-Mu, Yum, Ki-Dai, Oh, Jae-Kyung
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container_end_page 408
container_issue spc3
container_start_page 399
container_title Ocean and polar research
container_volume 25
creator Jin, Jae-Youll
Chae, Jang-Won
Song, Won-Oh
Park, Jin-Soon
Kim, Sung-Eun
Jeong, Weon-Mu
Yum, Ki-Dai
Oh, Jae-Kyung
description The behavior of Suspended Sediment Concentrations (SSC) around a silt screen in a microtidal coastal area was hydrodynamically measured. The current speed at the mid-layer about 30 m downstream of the screen reduces to about half that at the same distance upstream. It was caused by the contraction of the vertical section due to the screen. Even during a relatively weak storm period, the SSC increases to that of the value caused by dredging. Section-averaged SSC at the downstream of the screen is higher by about 60% than that at the upstream, suggesting that the silt screen plays an adverse effect rather than a constructive role in the reduction of SSC generated by dredging.
doi_str_mv 10.4217/OPR.2003.25.spc3.399
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title Behavior of Currents and Suspended Sediments around a Silt Screen
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