In each of the following cases state which test, X or Y, should show the greater shearing strength. Except for the difference stated below, the two tests are the same type in each case (triaxial, direct shear, etc.) and for identical clay samples.
(a) The tests are run with no drainage allowed, and test Y is run much faster than test X.
(b) Sample Y is preconsolidated to a larger pressure than sample X; the pressures during the tests are alike for the two cases.
(c) Neither sample is preconsolidated; test X is allowed to drain during shear and test Y is not allowed to drain.
(d) Both samples are highly overconsolidated; lest X is not allowed to drain and test Y is allowed to drain.
(e) Test Y is on a sample that is essentially in the undisturbed stale, and test X is on a specimen with appreciably disturbed structure but with the same void ratio as Y.
(After Taylor, 1948.)
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