106_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011

106_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011 -...

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BC22 Be Based on Insitu Tests: o Some insitu tests allow direct correlation to bearing capacity, potentially superior o SPT is a calibrated method developed by Meyerhof (1974) and modified by Bowles (1996) and uses chart below. N used in equations is an average over range of 0.58 above footing to 2B below footing. Method includes a factor for depth (O/B). For B in feet: qa,ksf =( N 55 1w d if B s 4ft 2.5]' where K d = (1 + O.331t-) S 1.33 o 1 2 3 456 FIgure 4-7 Allowable bearing capacity for surface-loaded footings with settlement limited to approximately 2S rom. Equation used is shown Gnfigure. 800 700 600 SOlI 300 200 100 IN,s II 1 I I I I I I 4. = o.os 4 =N"e+O.3Y(1+o.33~) - ~ ·0.08 B B ~ for, 0 S D S B and B > 1.2 m i" ~ ""'---- f\ .......... -- N=40 ," .......... r---- ~ 35 "'- I"
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This note was uploaded on 02/10/2012 for the course CEG 4012 taught by Professor Staff during the Fall '08 term at University of Florida.

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