Transcription of TYPES OF FOUNDATIONS
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TYPES OF FOUNDATIONS
Lecture Note COSC 421 ( Haque) 1 TYPES OF FOUNDATIONS Foundation Systems Shallow Foundation Deep Foundation Pile Foundation Pier (Caisson) Foundation Isolated spread footings Wall footings Combined footings Cantilever or strap footings Raft or Mat foundation Lecture Note COSC 421 ( Haque) 2 Shallow FOUNDATIONS are usually located no more than 6 ft below the lowest finished floor. A shallow foundation system generally used when (1) the soil close the ground surface has sufficient bearing capacity, and (2) underlying weaker strata do not result in undue settlement.
footings, except that the footings under columns are built independently, and are joined by strap beam. Lecture Note COSC 421 (M.E. Haque) 6 Raft or Mat foundation: This is a large continuous footing supporting all the columns of the structure. This is used when soil conditions are poor but piles are not used. Mat or Raft Footing ...
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