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.
Fig. 1(b) Axial Compressive Load transfer in deep foundations Skin friction End bearing (negligible) Wf P . Lecture Note COSC 421 (M.E. Haque) 8 Fig. 2 Axial Tension Load transfer in deep foundations Skin friction Wf P Fig. 3 Lateral Load transfer in deep foundations V M . Lecture Note COSC 421 (M.E. Haque) 9 Piles Piles cap ...
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