Engineering, 28.11.2019 05:31 Haleysaraya1
Determine the preconsolidation pressure, ’p, using casagrande construction. also, compute overconsolidation ratio, ocr, compression index, cc, and recompression index, cr. indicate these values on the developed plot in part b). determine cc and cr to 3 decimal places. the specimen has the following characteristics: initial height = 25.400 mm, diameter = 63.508 mm, gs = 2.70, and dry mass = 97.8 g. the effective confining stress of the soil in the field from which the sample was taken is estimated to be approximately 87 kpa.
a. compute the initial void ratio of the specimen (to three decimal places)
b. plot the consolidation curve in terms of void ratio versus pressure (…remember to plot pressure on a logarithmic scale! )
c. determine the preconsolidation pressure using casagrande’s graphical method.
d. compute the overconsolidation ratio (ocr) of the soil in the field.
e. use schmertmann’s method to draw the field-corrected consolidation curve for the soil in the field.
f. compute the recompression index, cr, from the consolidation curve.
g. compute the compression index, cc, from the consolidation curve.
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Determine the preconsolidation pressure, ’p, using casagrande construction. also, compute overconso...
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