crib(redirected from crib-biting operation)
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a structure in the form of a cage that is usually made of logs and beams and is filled with ballast (stones or, sometimes, dirt). A distinction is made between solid-construction cribs in the form of a shell (Russian design) and lattice-construction cribs (American design). Both types can be built of individual reinforced-concrete beams. The length of a crib may be as much as 60 m. Cribs are used as structural elements for the retaining walls, the piers and abutments of bridges, wooden dams, flood beds, aprons, sills, and cofferdams on solid and rocky foundations.