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Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.
Also called caissons, drilled shafts, drilled piers, cast-in-drilled-hole piles (CIDH piles) or cast-in-situ piles, a borehole is drilled into the ground, then concrete (and often some sort of reinforcing) is placed into the borehole to form the pile. Rotary boring techniques allow larger diameter piles than any other piling method and permit ...
The caisson provides buoyancy during construction and towing and acts also as a foundation structure in the operation phase. Furthermore, the caisson could be used as storage volume for oil or other liquids. [1] Floating units may be held in position by anchored wires or chains in a spread mooring pattern.
The caissons were constructed in 1951 and 1952 inside a diked and drained pond in Grassy Point near Haverstraw, New York, and after completion were floated down the Hudson to the site. The two largest (in terms of volume) concrete caissons are 360 feet (110 m) long, 82 feet (25 m) wide and 33 feet (10 m) high. The third is 375 feet (114 m) long ...
Concrete caisson structures, pioneered by the Condeep concept, often have in-built oil storage in tanks below the sea surface and these tanks were often used as a flotation capability, allowing them to be built close to shore (Norwegian fjords and Scottish firths are popular because they are sheltered and deep enough) and then floated to their ...
The town ultimately awarded a contract to Murphy Construction Company for $457,634 – $4.5 million in today’s dollars – to build the elliptical-shaped “heavily reinforced” concrete ...
A caisson is constructed of reinforced concrete and installed into sand or gravel below the surface level of an adjacent river or lake. [1] Screened conduits (also referred to as laterals or lateral well screens) are extended horizontally from ports in the caisson about 60 meters (200 feet) into surrounding water-bearing alluvium. [2]
The Horse Stars Hall of Fame. Three weeks ago, the Turner family officially adopted Klinger and Dozer from the 3rd U.S. Infantry Regiment Caisson Platoon, the solemn horses that carry the likes of ...