Definition of Pneumatic caisson. Meaning of Pneumatic caisson. Synonyms of Pneumatic caisson

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Definition of Pneumatic caisson

Pneumatic caisson
Caisson Cais"son, n. [F., fr. caisse, case, chest. See 1st Case.] 1. (Mil.) (a) A chest to hold ammunition. (b) 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. (c) A chest filled with explosive materials, to be laid in the way of an enemy and exploded on his approach. 2. (a) A water-tight box, of timber or iron within which work is carried on in building foundations or structures below the water level. (b) A hollow floating box, usually of iron, which serves to close the entrances of docks and basins. (c) A structure, usually with an air chamber, placed beneath a vessel to lift or float it. 3. (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.

Meaning of Pneumatic caisson from wikipedia

- deep. The four main types of caisson are box caisson, open caisson, pneumatic caisson and monolithic caisson. A box caisson is a prefabricated concrete...
- Weldon's caisson lock, William Congreve in 1813 patented a "hydro-pneumatic double balance lock" in which two adjacent locks containing pneumatic caissons could...
- water. In April 1815 the Regents Canal Company built a double caisson lock (or "hydro-pneumatic lock") at the site of the present-day Hampstead Road Lock...
- installed using pneumatic caissons, a pioneering application of caisson technology in the United States and, at the time, by far the largest caissons ever built...
- to that level as water from the river would rapidly seep in. So a pneumatic caisson technique had to be used. As men were working under pressures of up...
- unsecured shaft, over 46 years of excavation. Historically, work in pneumatic caissons underwater exposed workers to the risk of decompression sickness upon...
- the pneumatic caissons were dug into the river bed. The Harahan Bridge was to be located 200 feet (61 m) north of the Frisco Bridge. Use of pneumatic caissons...
- cylinders sunk by mechanical means, that was a precursor of the later pneumatic caisson system of skys****er foundation construction. The seminal 1893–94...
- new pneumatic caisson technique. However, the effects of pneumatic caissons were poorly understood, leading to the deaths of 14 workers due to caisson disease...
- filled with concrete. These tubes were driven into the ground with a pneumatic caisson process to anchor the foundations to the bedrock. Because the slope...