box-type caisson

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• Caisson lock — A caisson lock is a type of canal lock in which a narrowboat is enclosed in a sealed box and raised or lowered between two water levels.HistoryIt was first demonstrated at Oakengates on the now lost Shropshire Canal in 1792, where its inventor,… …   Wikipedia

• Caisson — (French for box ) may refer to:* Caisson (Asian architecture), a spider web ceiling * Caisson (engineering), a sealed underwater structure * Caisson (military), a two wheeled cart carrying ammunition * Caisson (pen name), of Edward Sperling *… …   Wikipedia

• caisson — caissoned, adj. /kay seuhn, son/, n. 1. a structure used in underwater work, consisting of an airtight chamber, open at the bottom and containing air under sufficient pressure to exclude the water. 2. a boatlike structure used as a gate for a… …   Universalium

• Pont en poutre-caisson — Le pont de l île de Ré. Le Pont en poutre caisson ou, de façon abrégée, le pont en caisson est, comme son nom l indique, un type d ouvrage dont la rigidité à la torsion est assurée par un tablier constitué d un ou plusieurs caissons creux. Le… …   Wikipédia en Français

• Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England …   Wikipedia

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

• bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… …   Universalium

• Timeline of diving technology — This is a timeline of underwater technology. The entries marked ## are about decompression tables.[1] Contents 1 Pre industrial 2 19th century 2.1 Rebreathers appear …   Wikipedia

• harbours and sea works — Introduction harbour also spelled  harbor        any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …   Universalium

• Pont de Shibanpo — 石板坡長江大橋 Pays Chine Localité Chongqing Latitude Longitude …   Wikipédia en Français

• Avatar (film, 2009) — Pour les articles homonymes, voir Avatar. Avatar …   Wikipédia en Français