T-wall

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A short T-wall of five segments, which are painted with various unity badges; taken at Camp Liberty in Iraq
New Jersey Profile, Federal Highway Administration, USA
Damaged T-Wall in Afghanistan , 2012
Construction of a 9 meter high T-wall in Israel , 2004. The base of the wall is embedded in the ground.

A T-wall (English t-Wall or Bremen wall ) is a specific type of protection wall, which consist of segments of reinforced concrete is, the cross section roughly to an upside-down T recalls. The name “Bremer wall”, which is widespread in English, is based on the name of the US civil administrator for Iraq Paul Bremer , under whose leadership extensive construction work was carried out there, which also included a large number of these “Bremer walls”. The walls are used both civilly and militarily.

The cross-sectional geometry of the wall segments is roughly based on the Jersey Barrier known from road safety , the height of which is increased from 1.07 m (42 inches) to 3.7 m (12 feet) to 6.1 m (20 feet) and the other dimensions can be adapted accordingly. The feet are made a little flatter. The 3.7 m high walls are known as the "Texas Barriers" and the 6.1 m high walls as the "Alaska Barriers". To simplify production, the cross-sectional geometry is sometimes designed as a pure upside-down T, with all angles then being 90 °. The side surfaces of the segments can be smooth, but they can also be shaped in such a way that the individual segments interlock and thus support one another and there are no longer any gaps between the segments in the wall. In order to be able to lift the wall segments mechanically for transport, parts of the steel reinforcement are usually led outwards through the concrete as an eyelet or a small opening is poured near the top of the wall.

Walls of this type can be erected faster and are more durable than those made of sandbags or gabions . They increase protection against accidental and deliberate explosions (both overpressure and splinters), direct fire, people, animals, land vehicles, wind and, to a lesser extent, water. Protection against the overpressure of an explosion consists in reducing the maximum explosion pressure in an area behind the wall that is four to six times as wide as the wall is high . The wall can be used for people, animals and land vehicles to limit and direct their movements.

These types of walls are used more widely in Israel , Iraq and Afghanistan .

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  • Ames, Thomas and Russell Marsh: The art of war: Operation Iraqi Freedom . Cage Juka Pub, Ashburn, VA 2011, ISBN 978-1-4611-3604-0 .
  • Whitney, Robin: The T-walls of Kuwait and Iraq . Operation Music Aid, Inc., Madison, CT 2010, ISBN 978-0-615-43472-8 .
  • Peter Smith: THE EFFECTIVENESS OF BLAST WALLS . Department of Civil Engineering, University of Thessaly. Retrieved November 6, 2014 (p. 5)

Web links

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