Problem $4[30$ points$]$: Cone Penetration Test

Cone penetration test data collected at the site of a proposed bridge is shown

in Figures $($a$)$ and $($b$).$

i$.$ Classify the soil profile at the si s using the correlations proposed by

Robertson and Campanella $(1983).[20$ pts$]$

ii$.$ The soil stratigraphy at the site was also identified through direct soil

boring as shown in Figure $($c$).$ How does the stratigraphy, predicted

using Robertson and Campanella $(1983)$ chart, compare with the actual

profile? $[10$ pts$]$

$($a$)$

$($b$)$

$($c$)$