Question

This problem is taken from Budhu's Soil Mechanics and Foundations, 3rd ed. There is no solution...

This problem is taken from Budhu's Soil Mechanics and Foundations, 3rd ed. There is no solution to this problem available on Chegg.

By consolidation test on a 20-mm-thick sample of soil shows that 90% consolidation occurs in 30 minutes. Plot a settlement (degree of consolidation)-time curve for a 10-m layer of this clay in the field for (a) single drainage; and (b) double drainage. Just one plot would be great. Thanks in advance.

Engineering   Civil-Engineering   
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Homework Answers

Answer #1

Assuming single drainage conditions.

Table for curve:

time (t) (in min) Consolidation (U)
0 0
100000 0.119983332
200000 0.169682056
300000 0.207817227
400000 0.239966664
500000 0.268290887
600000 0.293897941
700000 0.317446058
800000 0.339364111
900000 0.359949997
1000000 0.379420611
1100000 0.397939694
1200000 0.415634455
1300000 0.432606056
1400000 0.448936521
1500000 0.464693447
1600000 0.479933329
1700000 0.494703952
1800000 0.509046167
1900000 0.52299522
2000000 0.536581774
2100000 0.549832702
2200000 0.562771712
2300000 0.575419847
2400000 0.587795883
2500000 0.599916661
2600000 0.693078
2700000 0.7009
2800000 0.70865
2900000 0.716138
3000000 0.7234

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