the basic structure or features of a system or organization
lowest support of a structure; "it was built on a base of solid rock"; "he stood at the foot of the tower"
The components of a bridge which includes all elements supporting the superstructure. Its purpose is to transfer the loads from the superstructure to the foundation soil or rock.
The supporting part of a bridge; the foundation.
The support form of an offshore installation on which the derrick, engines, quarters, helicopter pad, cranes, etc. are installed.
the part of a bridge that supports the superstructure and carries all the applied lateral and vertical loads; includes caps, sills, piles, and posts, each comprising elements known as abutments and piers.
The foundation elements that support the building or bridge. p. 65
The bridge components under the girders. There are two types of substructure for the I-10 project: bents and piers.
The portion of a bridge structure including abutments and piers which supports the superstructure.
the foundation on which the derrick or mast and usually the drawworks sit. It contains space for storage and well-control equipment.
Foundation on which the derrick and engines sit.
All of that part of the structure below the bearings of simple and continuous spans, skewbacks of arches, and tops of footings of rigid frames, together with backwalls and wings.
Structural components and all constituent elements designed to support the superstructure and overpass roadway.
pertaining to the area below a structure; or a structure forming the foundation of a building or other construction
The parts of a suspension bridge that are below water or land; the piers, or tower foundations, and anchorages.