A clay specimen with a thickness of 80 mm is tested in the laboratory and drained...
A clay specimen with a thickness of 80 mm is tested in the laboratory and drained from both the top and bottom. In order to reach an average consolidation of 50%, the test is performed for 8.5 minutes. How many years will it take a 17 m layer of the same type of clay to reach 65% average consolidation in the field? Assume underneath the clay layer, is an impermeable boundary.
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A clay specimen with a thickness of 80 mm is tested in the
laboratory and drained...
2. The time for 65% consolidation for a 25-mm clay specimen (drained at the top and...
2. The time for 65% consolidation for a 25-mm clay specimen (drained at the top and bottom) in the laboratory is 10 minutes. How long will it take for a 6.5-m thick clay layer in the field to undergo 81% consolidation under the same pressure increment? In the field, there is only one seepage path.
Laboratory tests on a 2.5 cm thick clay sample that is drained on both sides indicates...
Laboratory tests on a 2.5 cm thick clay sample that is drained on both sides indicates that 50% consolidation occurs after 8.5 minutes (a) How long will it take for 50% consolidation for the same clay in the field that is 4 m thick but drained at the top only? (b) Find the time required for the same clay layer in Part (a) to reach 65% consolidation.
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 1...
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 150 sec. How long (in days) will it take for a 3 m thick layer of the same clay in the field under the same pressure increment to reach 75% consolidation? There is an impermeable shale layer at the bottom of the clay layer in the field I. 2. Use Figure 1 for the following Compute the vertical effective...
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both...
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below , after 10 minutes 50% consolidation is reached. a) How long time in days would the same degree of consolidation(50%) be reached in the field ?. b) How much the Final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? 3m 2m Sand surcharge Y= 17...
soil Q1) An oedometer test was performed on a 2 cm thick clay sample drained on...
soil
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below, after 10 minutes 50% consolidation is reached . a) How long time in days would the same degree of consolidation(50%) be reached in the field ?. b) How much the Final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? 3m 2m Sand surcharge Y...
soil mechanics Q1) An oedometer test was performed on a 2 cm thick clay sample drained...
soil mechanics
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below, after 10 minutes 50% consolidation is reached. a) How long time in days would the same degree of consolidation(50%) be reached in the field ? b) How much the final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? Sm 2m Sand surcharge y...
1. A 15 foot thick doubly drained layer of saturated clay under a surcharge loading underwent...
1. A 15 foot thick doubly drained layer of saturated clay under a surcharge loading underwent 90% primary consolidation in 120 days. The laboratory test's specimen will have two-way drainage a. Find the coefficient of consolidation for the pressure range b. For a 1.5 inch thick undisturbed clay specimen, how long will it take to undergo 90% consolidation in the laboratory for a similar pressure range?
7) (Total 20 pts) The figure shows a 20 m thick layer of normally consolidated clay...
7) (Total 20 pts) The figure shows a 20 m thick layer of normally consolidated clay (Y -18.6 kN/m3) that is one-dimensionally loaded by Δσ,-50kPa. The clay layer is below a 3 m thick layer of granular fill (y = 19.6 kN/m3), and a dense, compacted glacial till (impermeable) underlies the clay. The water table is located at the top of the clay layer. A 1-D consolidation test is performed on a 2.20 cm thick, doubly drained specimen from the...
I want solution! 3. A laboratory consolidation test was conducted on a specimen collected form the...
I want solution!
3. A laboratory consolidation test was conducted on a specimen collected form the middle of the overconsolidated clay layer and the field consolidation curve is given below. The effective overburden pressure was 40.95 kN/m²at the middle of the clay layer. Calculate a) the recompression index, b) the compression index, and c) the consolidation settlement when the average vertical stress increment at the middle of the clay layer is 50kN/m² due to a foundation load. The thickness of...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
Laboratory tests on a 2.5 cm thick clay sample that is drained on both sides indicates that 50% consolidation occurs after 8.5 minutes (a) How long will it take for 50% consolidation for the same clay in the field that is 4 m thick but drained at the top only? (b) Find the time required for the same clay layer in Part (a) to reach 65% consolidation.
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 150 sec. How long (in days) will it take for a 3 m thick layer of the same clay in the field under the same pressure increment to reach 75% consolidation? There is an impermeable shale layer at the bottom of the clay layer in the field I. 2. Use Figure 1 for the following Compute the vertical effective...
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below , after 10 minutes 50% consolidation is reached. a) How long time in days would the same degree of consolidation(50%) be reached in the field ?. b) How much the Final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? 3m 2m Sand surcharge Y= 17...
soil
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below, after 10 minutes 50% consolidation is reached . a) How long time in days would the same degree of consolidation(50%) be reached in the field ?. b) How much the Final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? 3m 2m Sand surcharge Y...
soil mechanics
Q1) An oedometer test was performed on a 2 cm thick clay sample drained on both sides taken from the mid clay layer shown below, after 10 minutes 50% consolidation is reached. a) How long time in days would the same degree of consolidation(50%) be reached in the field ? b) How much the final settlement would be reached in the clay layer.? c) How much the preconsolidation pressure of a specimen. ? Sm 2m Sand surcharge y...
1. A 15 foot thick doubly drained layer of saturated clay under a surcharge loading underwent 90% primary consolidation in 120 days. The laboratory test's specimen will have two-way drainage a. Find the coefficient of consolidation for the pressure range b. For a 1.5 inch thick undisturbed clay specimen, how long will it take to undergo 90% consolidation in the laboratory for a similar pressure range?
7) (Total 20 pts) The figure shows a 20 m thick layer of normally consolidated clay (Y -18.6 kN/m3) that is one-dimensionally loaded by Δσ,-50kPa. The clay layer is below a 3 m thick layer of granular fill (y = 19.6 kN/m3), and a dense, compacted glacial till (impermeable) underlies the clay. The water table is located at the top of the clay layer. A 1-D consolidation test is performed on a 2.20 cm thick, doubly drained specimen from the...
I want solution!
3. A laboratory consolidation test was conducted on a specimen collected form the middle of the overconsolidated clay layer and the field consolidation curve is given below. The effective overburden pressure was 40.95 kN/m²at the middle of the clay layer. Calculate a) the recompression index, b) the compression index, and c) the consolidation settlement when the average vertical stress increment at the middle of the clay layer is 50kN/m² due to a foundation load. The thickness of...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
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