Question: For the data given in Problem 3.22, if D 50 = 0.8 mm, find the N 60 values at each depth. Use Eq. (3.55) with
For the data given in Problem 3.22, if D50 = 0.8 mm, find the N60 values at each depth. Use Eq. (3.55) with Kulhawy and Mayne values for a and c.
Eq. (3.55)
Problem 3.22
A cone penetration test was carried out in normally consolidated sand, for which the results are summarized below:
Depth (m) ........................ Cone resistance, qc (MN/m2)
2.0 ....................................................... 3.12
3.5 ....................................................... 4.25
5.0 ....................................................... 5.14
6.5 ....................................................... 9.23
8.0 ....................................................... 12.2
The average unit weight of the sand is 16.5 kN/m3. Determine the friction angle at each depth using Eq. (3.52).
Eq. (3.52)
\Pa/ cD3o a N60
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To determine the N60 values at each depth we can use Equation 355 with the values provided by Kulhawy and Mayne for the constants a and c However befo... View full answer
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