Calculation of bearing capacity and settlement of shallow foundations according to the authors listed below:
Terzaghi & Peck (1948)
•overestimates settlement
•unspecified foundation form (width B)
•considers GWT depth (Coeff. Cw) and foundation grip (Coeff. Cd)
Meyerhof (1965)
•overestimates mat foundation bearing capacity
•unspecified foundation form (width B)
•does not consider GWT depth
•considers foundation grip (Coeff. Cd)
Bazaraa (1967) – Peck & Bazaraa (1969)
•valid only where reworked (fill) soils do not occur adjacent to site
•unspecified foundation form (width B)
•considers GWT depth (Coeff. Cw) with own method
•considers foundation grip (Coeff. Cd) and also of effective stresses (Nspt corrected with lithostatic stress)
Peck, Hanson & Thornburn (1974)
•valid only where reworked (fill) soils do not occur adjacent to site
•unspecified foundation form (width B)
•considers GWT depth (Coeff. Cw)
•does not consider foundation grip
•considers effective pressures (Nspt corrected with lithostatic stress)
Meigh & Hobbs (1975)
•valid for diverse lithotypes
•unspecified foundation form (width B) (based on Terzaghi's method)
•does not consider GWT depth (always value 1)
•considers foundation grip (Coeff. Cd) and granularity through the ratio Nspt/Qc
Burland and others (1977)
•method valid where B>3m
•statistical method based on experience (within 50 – 75% encounterd by Burland)
•does not consider foundation grip
De Beer - Martens (1957)
•method valid for coarse granular soils (sands, gravels)
•unspecified foundation form (width B)
•considers GWT depth (Coeff. Cw)
•does not consider foundation grip (Coeff. Cd)
•considers effective stresses (Nspt corrected with lithostatic stress)
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