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A hopper barge is a type of barge commonly designed to transport commodities like coal, steel, rocks, sand, soil and waste. [1] '. Hopper barge' can also refer to a barge that dumps cargo at sea. These are now commonly called 'split hopper barge', because they split along the length of the hull. Split hopper barges can be non-propelled or self ...
The Unified Soil Classification System (USCS) is a soil classification system used in engineering and geology to describe the texture and grain size of a soil. The classification system can be applied to most unconsolidated materials, and is represented by a two-letter symbol. Each letter is described below (with the exception of Pt): If the ...
A self-propelled dry bulk barge carrying crushed stone near Wuhan, 18 June 2006 The towboat, Donna York, pushing coal up the Ohio River.The tow had just exited the Louisville and Portland Canal at Louisville, Kentucky, 17 May 2009 An empty coal barge showing cargo bay smaller than hull along the Weser River in Bremen, May 2005 15 long coal barges on the Monongahela River near Pittsburgh, 28 ...
Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.
Hydraulic conductivity. In science and engineering, hydraulic conductivity (K, in SI units of meters per second), is a property of porous materials, soils and rocks, that describes the ease with which a fluid (usually water) can move through the pore space, or fracture network. [1]
A thermal blanket is a device used in thermal desorption to clean soil contamination. The primary function of a thermal blanket is to heat the soil to the boiling point of the contaminants (usually 100 to 325 °C and as high as 900 °C [ 1]) so that they break down. A vacuum pulls the resulting gas (along with volatilized contaminants) into a ...
Stowage plan for container ships. The holds of a container ship. Stowage plan for container ships or bay plan is the plan and method by which different types of container vessels are loaded with containers of specific standard sizes. The plans are used to maximize the economy of shipping and safety on board.
Valemax ships are a fleet of very large ore carriers (VLOC) owned or chartered by the Brazilian mining company Vale S.A. to carry iron ore from Brazil to European and Asian ports. With a capacity ranging from 380,000 to 400,000 tons deadweight, the vessels meet the Chinamax standard of ship measurements for limits on draft and beam.