The friction angle, d', of a normally consolidated clay specimen collected during field exploration was determined from drained triaxial tests to be 25°. The unconfined compression strength, qu, of a similar specimen was found to be 100 kN/m². Determine the pore water pressure at failure for the unconfined compression test. Repeat Problem 11.21 using the following values. d' = 20° 140 kN/m²

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Chapter2: Loads On Structures
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11.21 The friction angle, d', of a normally consolidated clay specimen collected
during field exploration was determined from drained triaxial tests to be 25°.
The unconfined compression strength, qu, of a similar specimen was found to
be 100 kN/m². Determine the pore water pressure at failure for the
unconfined compression test.
11.22 Repeat Problem 11.21 using the following values.
$' = 20°
qu= 140 kN/m²
Transcribed Image Text:11.21 The friction angle, d', of a normally consolidated clay specimen collected during field exploration was determined from drained triaxial tests to be 25°. The unconfined compression strength, qu, of a similar specimen was found to be 100 kN/m². Determine the pore water pressure at failure for the unconfined compression test. 11.22 Repeat Problem 11.21 using the following values. $' = 20° qu= 140 kN/m²
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