Caisson Of Yueyang Tower 岳陽樓藻井
Caisson (French for "box") may refer to: * Caisson (engineering), a sealed underwater structure * Caisson (vehicle), a two-wheeled cart for carrying ammunition, also used in certain state and military funerals * Caisson (Asian architecture), a spider web ceiling * Caisson (lock gate), a gate for a dock or lock, constructed as a floating caisson * Caisson (pen name), of Edward Sperling * Caisson (western architecture), a type of coffer * Caisson disease, or decompression sickness * Caisson lock, a type of canal lock See also * Caisson foundation * Kazon, a fictional alien race in ''Star Trek'' * Khe Sanh Khe Sanh () is the district capital of Hướng Hoá District, Quảng Trị Province, Vietnam, located 63 km west of Đông Hà. During the Vietnam War The Vietnam War (1 November 1955 – 30 April 1975) was an armed conflict ...

Caisson (engineering)
In geotechnical engineering, a caisson (; borrowed , , an augmentative of ) is a watertight retaining structure. It is used, for example, to work on the foundation (architecture), foundations of a bridge pier (architecture), pier, for the construction of a concrete dam, or for the repair of ships. Caissons are constructed in such a way that the water can be pumped out, keeping the work environment dry. When piers are being built using an open caisson, and it is not practical to reach suitable soil, Deep foundation, friction pilings may be driven to form a suitable sub-foundation. These piles are connected by a foundation pad upon which the column pier is erected. Caisson engineering has been used since at least the 19th century, with three prominent examples being the Royal Albert Bridge (completed in 1859), the Eads Bridge (completed in 1874), and the Brooklyn Bridge (completed in 1883). Types To install a caisson in place, it is brought down through soft mud until a suitable ...
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Caisson (vehicle)
A limber is a two-wheeled cart designed to support the trail of an artillery piece, or the stock of a field carriage such as a caisson or traveling forge, allowing it to be towed. The trail is the hinder end of the stock of a gun-carriage, which rests or slides on the ground when the carriage is unlimbered. A caisson () is a two-wheeled cart designed to carry artillery ammunition; the British term is "ammunition wagon". Caissons are also used to bear the casket of the deceased in some state and military funerals in certain Western cultures, including the United States. Before the 19th century As artillery pieces developed trunnions and were placed on carriages featuring two wheels and a trail, a limber was devised. This was a simple cart with a pintle. When the piece was to be towed, it was raised over the limber and then lowered, with the pintle fitting into a hole in the trail. Horses or other draft animals were harnessed in single file to haul the limber. There was no ...
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Caisson (Asian Architecture)
The caisson (), also referred to as a caisson ceiling, or ''spider web ceiling'', in Chinese architecture is an architectural feature typically found in the ceiling of temples and palaces, usually at the centre and directly above the main throne, seat, or religious figure. The caisson is generally a sunken panel set into the ceiling. It is often layered and richly decorated. Common shapes include squares, octagons, hexagons, circles, and a combination of these. Name The ''caisson'' is a general name for a coffer. In the case of Chinese architecture, however, the caisson is characterised by highly developed conventions as to its structure and placement. Structure The caisson is a sunken panel placed in the centre of the ceiling. It is raised above the level of the ceiling through the use of the ''dougong'' (斗栱) structure, which, through interlocking structural members, as beams were not used, creates successive levels of diminishing size. Beams may also be used to create a ...
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Caisson (lock Gate)
A caisson is a form of lock gate. It consists of a large floating wrought iron, iron or steel box. This can be flooded to seat the caisson in the opening of the dock to close it, or pumped dry to float it and allow it to be towed clear of the dock. Chevron gates Most lock (water transport), locks are closed by chevron or mitre gates rather than by caissons. These are pairs of hinged gates that form a "V" shape, with the deeper water outside the V. Water pressure thus holds them closed. These gates can be opened and closed quickly, so they are used for canal locks, to change levels, and also for most freight impounded dock, docks. As the function of a freight dock is to ''enclose'' deep water, such gates point inwards. A graving dock, graving or dry dock, in contrast, ''excludes'' water, and so their gates point outwards. Hinged gates are relatively complicated, and so expensive, to construct. Large gates require powered machinery to operate them, machinery that must be provide ...
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Caisson (pen Name)
Edward J Sperling (1889 – July 22, 1946), born Ezra Sperling, was a 20th-century writer, humourist, and Zionist. Early life Ezra Sperling was born in 1889 in a Jewish community in Slutsk, Belarus, then part of the Russian Empire. As a boy, he and his family fled Russia to avoid the state-sponsored pogroms, emigrating to the United States, where he changed his name to Edward. His family eventually settled in Sioux City, Iowa. As a boy – and throughout his life – Edward was described as quiet, gentle, and fairly introverted, spending most of his time reading or writing. As a result, he took to writing professionally, writing articles for local Jewish newspapers. World War One and aftermath After World War I had broken out, Edward went to Canada to join the British Army in 1918, and ended up enlisting in the Jewish Legion under Joseph Trumpeldor, for whom he would later name his first-born son, Joseph Trumpeldor Sperling (though this was also because Edward's future wife ha ...
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Caisson (western Architecture)
A coffer (or coffering) in architecture is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also called ''caissons'' ("boxes"), or ''lacunaria'' ("spaces, openings"), so that a coffered ceiling can be called a ''lacunar'' ceiling: the strength of the structure is in the framework of the coffers. History The stone coffers of the ancient Greeks and Romans are the earliest surviving examples, but a seventh-century BC Etruscan chamber tomb in the necropolis of San Giuliano, which is cut in soft tufa-like stone reproduces a ceiling with beams and cross-beams lying on them, with flat panels filling the ''lacunae''. For centuries, it was thought that wooden coffers were first made by crossing the wooden beams of a ceiling in the Loire Valley châteaux of the early Renaissance. In 2012, however, archaeologists working under the Packard Hu ...
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Caisson Disease
Decompression sickness (DCS; also called divers' disease, the bends, aerobullosis, and caisson disease) is a medical condition caused by dissolved gases emerging from solution as bubbles inside the body tissues during decompression. DCS most commonly occurs during or soon after a decompression ascent from underwater diving, but can also result from other causes of depressurisation, such as emerging from a caisson, decompression from saturation, flying in an unpressurised aircraft at high altitude, and extravehicular activity from spacecraft. DCS and arterial gas embolism are collectively referred to as decompression illness. Since bubbles can form in or migrate to any part of the body, DCS can produce many symptoms, and its effects may vary from joint pain and rashes to paralysis and death. DCS often causes air bubbles to settle in major joints like knees or elbows, causing individuals to bend over in excruciating pain, hence its common name, the bends. Individual susce ...
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Caisson Lock
The caisson lock is a type of canal lock in which a narrowboat is floated into a sealed watertight box and raised or lowered between two different canal water levels. It was invented in the late 18th century as a solution to the problem posed by the excessive demand for water when conventional locks were used to raise and lower canal boats through large height differences. Such locks, each of which would only raise and lower boats through small height differences of a few feet, would not suffice when large height differences had to be tackled nor when water was in short supply. The caisson (or ) was thought to be one solution, although it transpired that the technology of the day was not capable of achieving this type of construction economically. It was designed primarily as a water-saving measure, and also was an attempt to minimise construction costs compared with other engineering solutions of the time. In use, it was capable of replacing up to seven conventional locks. An ...
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Caisson Foundation (other)
Caisson foundation may refer to: * Caisson (engineering) * Deep foundation A pile or piling is a vertical structural element of a deep foundation, driven or drilled deep into the ground at the building site. A deep foundation is a type of foundation (architecture), foundation that transfers building loads to the e ...

Kazon
The Kazon () are a fictional race, fictional alien race in the ''Star Trek'' franchise. Developed by ''Star Trek: Voyager'' series' co-creators Rick Berman, Michael Piller, and Jeri Taylor, the Kazon serve as the primary antagonists during the show's first two seasons. They are represented as a Nomad, nomadic species divided into eighteen separate sects, and characterized by their reliance on violence. A patriarchal society, the Kazon have a low opinion of women, and place pride in men becoming warriors and proving themselves in battle. The Kazon storylines frequently revolve around the attempts of Jal Culluh and his Kazon sect to steal technology from the USS Voyager (Star Trek), USS ''Voyager'', with the assistance of former ''Voyager'' Ensign (rank), ensign Seska. During the second season, the ''Voyager'' crew uncover more about the alien species' history and culture through a temporary truce. In their final major appearance, the Kazon successfully commandeer ''Voyager'', but ...
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