A clay specimen was tested in a laboratory consolidation device, which was 12.7 mm (½ in.) thick and the top and the bottom boundaries were drained. A 50% consolidation time on the specimen was obtained as 28.4 minutes. Determine the following: (a) Time for 50% consolidation in the field with this soil with a 2.5 m thickness where only the top layer is drained (b) Time for 90% consolidation in the field with this soil with a 2.5 m 9.4 thickness where only the top layer is drained (c) For the same field condition above, at the end of 1 year after the placement of load, how much primary consolidation settlement occurs relative to its final amount of the settlement? (d) The same question as in (c), but at the end of 5 years
A clay specimen was tested in a laboratory consolidation device, which was 12.7 mm (½ in.) thick and the top and the bottom boundaries were drained. A 50% consolidation time on the specimen was obtained as 28.4 minutes. Determine the following: (a) Time for 50% consolidation in the field with this soil with a 2.5 m thickness where only the top layer is drained (b) Time for 90% consolidation in the field with this soil with a 2.5 m 9.4 thickness where only the top layer is drained (c) For the same field condition above, at the end of 1 year after the placement of load, how much primary consolidation settlement occurs relative to its final amount of the settlement? (d) The same question as in (c), but at the end of 5 years
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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CEN 333 Geotechnical
Transcribed Image Text:A clay specimen was tested in a laboratory consolidation device, which
was 12.7 mm (½ in.) thick and the top and the bottom boundaries were
drained. A 50% consolidation time on the specimen was obtained as
28.4 minutes. Determine the following:
(a) Time for 50% consolidation in the field with this soil with a 2.5 m
9.4
thickness where only the top layer is drained
(b) Time for 90% consolidation in the field with this soil with a 2.5 m
thickness where only the top layer is drained
(c) For the same field condition above, at the end of 1 year after the
placement of load, how much primary consolidation settlement
occurs relative to its final amount of the settlement?
(d) The same question as in (c), but at the end of 5 years
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