Cofferdam! Types of cofferdam dam ! Earthfill cofferdam! Rockfill cofferdam! Rockfill crib cofferdam

Cofferdam! Types of cofferdam dam ! Earthfill cofferdam! Rockfill cofferdam! Rockfill crib cofferdam
Earthen Cofferdams
Earthen cofferdams are the simplest to construct but have somewhat limited use. An embankment made of earth is used to enclose the work area.
Rock-Filled Cofferdams
Similar to earthen cofferdams, rock-filled cofferdams have a rubble or stone embankment to surround the work area. A rock-filled cofferdam is still used in lower-depth water - perhaps 2m to 3m.
Rockfill Crib Cofferdams
Timber crib cofferdams are made of a frame comprised of wooden beams. Horizontal and cross beams are laid in an alternate course. Timber crib cofferdams are left open at the bottom and filled in with either earth, gravel, or rock.
Cofferdam !Requirement of cofferdam! How are They Used? Types of cofferdam! @SmartEngineerStudy
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00:00 - Introduction
01:15 - Earthfill cofferdam
06:45 - Rock fill cofferdam
09:00 - Rock fill Crib cofferdam
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