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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.
One or more, Dredging pumps to create an under pressure in order to suck the substance into the hopper; Transportation tubes to transport the substance from the pipes to the hopper; An overflow to discharge the redundant water overboard; Degassing installation to extract any possible gas from the substance in order to reduce damage and increase ...
Hydrographic survey is the science of measurement and description of features which affect maritime navigation, marine construction, dredging, offshore wind farms, offshore oil exploration and drilling and related activities. Surveys may also be conducted to determine the route of subsea cables such as telecommunications cables, cables ...
Boskalis Westminster N.V. is a Dutch dredging and heavylift company that provides services relating to the construction and maintenance of maritime infrastructure internationally. [2] The company has one of the world's largest dredging fleets, a large stake in Smit International and owns Dockwise, a large heavylift shipping company. [3]
The dredging works were conducted by Dutch company Royal Boskalis Westminster for the Port of Melbourne Corporation (PoMC), a statutory body established by the Victorian Government responsible for the running of the port, at a cost of $500 million and was expected to be completed before 31 December 2009, pending auditor reports and various ...
The term 'hopper barge' surfaces in the second half of 19th century England, especially in relation to dredging. [5] The word 'hopper' has multiple meanings. The hopper car is a well known use, but hopper can also mean: "any of various other receptacles for the temporary storage of material". [6]
The ship's dragheads are 6 metres (19.7 ft) wide and can dredge between 55 metres (180 ft) and 160 metres (520 ft) deep. The ship has three hopper discharge options of pumping ashore by pipeline, dumping through bottom doors or rainbowing. [2] The ship has equipment to dredge almost any material; such as clay, silt, sand and rock.
Government Cut is a manmade shipping channel between Miami Beach and Fisher Island, which allows better access to the Port of Miami in Miami, Florida. Before the cut was established, a single peninsula of dry land stretched from what is now Miami Beach to what is now Fisher Island, and boats destined for the port at the mouth of the Miami River ...