Sensitivity of jet characteristics on dredging of bed-sediments in a water-body

The use of a suction field aided by a jet system in a dredging process is one of the recent hydraulic methods in underwater dredging. The jet parameters have a great influence on the dredging efficiency. Jet induced impact energy that is required to initiate the bed motion and sediment - pulsation i...

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Bibliographic Details
Published inJournal of Engineering and Applied Sciences (Pakistan) Vol. 22; no. 2
Main Authors El-Zawahry, A, Ibrahim, K. (Sultan Qaboos Univ. (Oman). Coll. of Engineering), Shahalam, A.M
Format Journal Article
LanguageEnglish
Published 01.07.2003
Subjects
CONSTRUCCIONES HIDRÁULICAS
DRAGADO
DRAGAGE (PÊCHE)
DRAGAS
DRAGUE
DREDGERS
DREDGING (CATCHING METHODS)
GÉNIE HYDRAULIQUE
HYDRAULIC ENGINEERING
HYDRAULIC STRUCTURES
INGENIERÍA HIDRÁULICA
OUVRAGE HYDRAULIQUE
SEDIMENT
SEDIMENTO
SÉDIMENT
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Summary:The use of a suction field aided by a jet system in a dredging process is one of the recent hydraulic methods in underwater dredging. The jet parameters have a great influence on the dredging efficiency. Jet induced impact energy that is required to initiate the bed motion and sediment - pulsation is considered. Parametric sensitivity of various factors on dredging performance was carried out in an experimental set-up. Effects of changing the number of jets, jet geometry, suspension concentration, horizontal and vertical distances between jets and suction inlet on the dredging efficiency and the geometry of the excavation hole have been investigated. The results showed that several of these parameters have variable and significant effects on the dredging efficiency as well as the resulting geometry of the excavation.
Bibliography:2004000661
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