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dredging
Sign in to savethumb|A grab dredge Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.
Article
32 sectionsContents
- Description
- History
- Purposes
- Other
- Types
- Suction dredgers
- Trailing suction
- Cutter-suction
- Auger suction
- Jet-lift
- Air-lift
- Mechanical dredgers
- Bucket dredgers
- Grab dredgers
- Backhoe/dipper dredgers
- Bed leveler
- Krabbelaar
- Water injection
- Pneumatic
- Snagboat
- Amphibious
- Submersible
- Fishing
- Notable individual dredgers
- Dredge monitoring software
- Transportation and disposal of materials
- Environmental impacts
- Major dredging companies
- Images
- See also
- References
- External links
thumb|A grab dredge Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.
Usually the main objectives of dredging is to recover material of value, or to create a greater depth of water. Dredging systems can either be shore-based, brought to a location based on barges, or built into purpose-built vessels.