Crossword clues for caisson
caisson
- Ammunition carrier on wheels
- An ornamental sunken panel in a ceiling or dome
- A two-wheeled military vehicle carrying artillery ammunition
- A chest to hold ammunition
- Large watertight chamber used for construction under water
- Ammunition wagon
- Enclosure for a sandhog
- Watertight chamber
- Watertight chamber is thus enclosed in metal
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Caisson \Cais"son\, n. [F., fr. caisse, case, chest. See 1st Case.]
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(Mil.)
A chest to hold ammunition.
A four-wheeled carriage for conveying ammunition, consisting of two parts, a body and a limber. In light field batteries there is one caisson to each piece, having two ammunition boxes on the body, and one on the limber.
--Farrow.A chest filled with explosive materials, to be laid in the way of an enemy and exploded on his approach.
A water-tight box, of timber or iron within which work is carried on in building foundations or structures below the water level.
A hollow floating box, usually of iron, which serves to close the entrances of docks and basins.
A structure, usually with an air chamber, placed beneath a vessel to lift or float it.
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(Arch.) A sunk panel of ceilings or soffits.
Pneumatic caisson (Engin.), a caisson, closed at the top but open at the bottom, and resting upon the ground under water. The pressure of air forced into the caisson keeps the water out. Men and materials are admitted to the interior through an air lock. See Lock.
Douglas Harper's Etymology Dictionary
1704, from French caisson "ammunition wagon, box, crate," from Middle French caisson "large box" (16c.), from Italian cassone, augmentative form of cassa "a chest," from Latin capsa "a box" (see case (n.2)).
Wiktionary
n. 1 (context engineering English) An enclosure, from which water can be expelled, in order to give access to underwater areas for engineering works etc. 2 The gate across the entrance to a dry dock. 3 (context nautical English) A floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy; a camel. 4 (context military English) A two-wheeled, horse-drawn military vehicle used to carry ammunition (and a coffin at funerals). 5 (context military English) A large box to hold ammunition. 6 (context military English) A chest filled with explosive materials, used like a mine. 7 (context architecture English) A coffer.
WordNet
n. an ornamental sunken panel in a ceiling or dome [syn: coffer, lacuna]
a two-wheeled military vehicle carrying artillery ammunition
a chest to hold ammunition [syn: ammunition chest]
large watertight chamber used for construction under water [syn: pneumatic caisson, cofferdam]
Wikipedia
Caisson (French for "box") may refer to:
- Caisson (western architecture), a type of coffer
- Caisson (Asian architecture), a spider web ceiling
- Caisson (engineering), a sealed underwater structure
- Limbers and caissons, a two-wheeled cart for carrying ammunition, also used in certain state and military funerals
- Caisson lock, a type of canal lock
- Caisson (lock gate), a gate for a dock or lock, constructed as a floating caisson
- Deep foundation, also called a caisson foundation
- Caisson (pen name), of Edward Sperling
- Caisson disease, or decompression sickness
In geotechnical engineering, a caisson ( or ) is a watertight retaining structure used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, or for the repair of ships. These are constructed such that the water can be pumped out, keeping the working environment dry. When piers are to be built using an open caisson and it is not practical to reach suitable soil, 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.
The Caisson , also referred to as a caisson ceiling, or spider web ceiling, in East Asian 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 otherwise largely flat ceiling. It is often layered and richly decorated. Common shapes include square, octagon, hexagon, circle, and a combination of these.
A caisson is a form of lock gate. It consists of a large floating 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.
Usage examples of "caisson".
A bottomless caisson, serving as a sort of diving-bell, in which men can work when compressed air is introduced to keep out the water in proportion to the depth below the water-level, which is gradually carried down to an adequately firm foundation by excavating at the bottom of the caisson, and building up a quay-wall or pier out of water on the top of its roof as it descends.
Open iron caissons are frequently employed for enclosing the site of river piers for bridges, where a water-tight stratum can be reached at a moderate depth, into which the caisson can be taken down, so that the water can be pumped out of the enclosure and the foundations laid and the pier carried up in the open air.
Forth Bridge rest, were each erected within an open plate-iron caisson fitted at the bottom to the sloping rock, where ordinary cofferdams could not have been adopted.
The caisson at the bottom, forming the working chamber, is usually provided with a strong roof, round the top of which, when the caisson is floated into a river, plate-iron sides are erected forming an upper open caisson, inside which the pier or quay-wall is built up out of water, on the top of the roof, as the sinking proceeds.
Exposure to such pressures is apt to be followed by disagreeable and even dangerous physiological effects, which are commonly referred to as caisson disease or compressed air illness.
At this rate, the whole caisson would slough away and melt like butter, within an hour, under the weight of the Bridge above it.
Mounted on top of the caisson was a 5-ton Wilson crane, which would reach each shaft and also the muck cars standing on tracks on the ground level beside the caissons.
The average rate of lowering, when the cutting edge of the south caisson was passing through earth, was 0.
As the jacks lifted the caisson, the blocking was set for a lower position, to which the caisson settled as the jacks were exhausted.
The caisson usually rested on three sets of blockings on each side and two on each end.
When a sufficient number of posts had been placed, the blocking on which the caisson had rested was knocked or blasted out, and the rock underneath was excavated.
The tilt or level of the caisson was controlled by chopping the posts more on the side which was desired to move first.
The concrete in the walls, which was added as the caisson was being sunk, was kept at about the elevation of the ground.
Under these conditions, there was a continued but small leakage into the caisson of from 15,000 to 20,000 gal.
As soon as the cutting edge was cleared, bags of clay were placed under it in a well-tiered, solid pile, so that when the caisson was lowered the bags were cut through and most of the clay, bags and all, was squeezed back of the cutting edge between the rock and the caisson.