Evaluation of turbidity generated by cutter suction and grab dredgers

Title
Evaluation of turbidity generated by cutter suction and grab dredgers
Author(s)
진재율; 송원오; 박진순; 김성은; 오영민; 염기대; 오재경
KIOST Author(s)
Jin, Jae Youll(진재율)Oh, Young Min(오영민)
Alternative Author(s)
진재율; 송원오; 박진순; 김성은; 오영민; 염기대
Publication Year
2003-08-22
Abstract
Dredging-induced sediment losses into the ambient waters at 15 sites have been evaluated by using a vessel-mounted acoustic Doppler sensor system. The loss rates per unit volume of cutter suction and grab dredging ranges 2.4-13.5 kg m-3 and 2.7-188.9 kg m-3, respectively. The loss rates largely depend on the current speed and grain composition of the dredged material. Mechanical grab dredging after crushing the bedrock covered with sediments generates markedly large release of sediments beyond about 100 kg m-3, which is presumably responsible for the rock fragments preventing the grabs from being tightly closed.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/32226
Bibliographic Citation
한국해안.해양공학발표논문집, pp.179 - 184, 2003
Publisher
한국해안.해양공학회
Type
Conference
Language
English
Publisher
한국해안.해양공학회
Related Researcher
Research Interests

Coastal engineering,연안공학

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