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 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 resi...

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 ...

For the data given in Problem 3.22, if D 50 = 0.8 mm, find the N 60

Question:

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)

$\Pa/ cD3o a N60$

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, q_c (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)