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The World Trade Center site, often referred to as "Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. [ 1 ] [ 2 ] The site is bounded by Vesey Street to the north, the West Side Highway to the west, Liberty Street to the south, and Church Street to the east.
Volunteers quickly descended on Ground Zero to help in the rescue and recovery efforts. At Jacob Javits Convention Center, thousands showed up to offer help, where they registered with authorities. [37] Construction projects around the city came to a halt, as workers walked off the jobs to help at Ground Zero. [38]
In geotechnical engineering, a tieback is a structural element installed in soil or rock to transfer applied tensile load into the ground. Typically in the form of a horizontal wire or rod, or a helical anchor, a tieback is commonly used along with other retaining systems (e.g. soldier piles , sheet piles, secant and tangent walls) to provide ...
The cross installed on a pedestal at Ground Zero (2004). The World Trade Center cross, also known as the Ground Zero cross, is a formation of steel beams found among the debris of the World Trade Center site in Lower Manhattan, New York City, following the September 11 attacks in 2001.
Ground zero describes the point on the Earth's surface (its hypocenter) closest to a nuclear detonation. In the case of an explosion above the ground, ground zero refers to the point on the ground directly below the nuclear detonation. Ground zero may also refer to: The World Trade Center site in New York City, after the September 11 attacks
Bistable structure – Brick – is building material used to make walls, pavements and other elements in masonry construction. Traditionally, the term brick referred to a unit composed of clay, but it is now used to denote rectangular units made of clay-bearing soil, sand, and lime, or concrete materials.
7 World Trade Center (7 WTC, WTC-7, or Tower 7) is an office building constructed as part of the new World Trade Center in Lower Manhattan, New York City.The tower is located on a city block bounded by Greenwich, Vesey, Washington, and Barclay Streets on the east, south, west, and north, respectively. 7 World Trade Center was developed by Larry Silverstein, who holds a ground lease for the ...
The design and construction of the World Trade Center, most centrally its twin towers, involved many other innovative techniques, such as the slurry wall for digging the foundation, and wind tunnel experiments. Construction of the World Trade Center's North Tower began in August 1968, and the South Tower in 1969.