(a) A CPT sounding for a tested location near a planned building location and obtained at a depth of approximately 10 m provides the data indicated. The sounding is 3 m below the groundwater table for...

(a) A CPT sounding for a tested location near a planned building location and obtained at a depth of approximately 10 m provides the data indicated. The sounding is 3 m below the groundwater table for the site. Total vertical overburden stress at the test depth is about 160 kPa. The cone “a” factor is 0.80.

q_c
= 7450 kPa

f_s
= 150 kPa

cone pore pressure u₂
= 36 kPa

Referring to Figure 22, determine the SBT for the test depth.

(b) For this same CPT data, use Figure 23 to determine the soil identification type, and indicate the final values for q_c,1
and f_s,1, including the related exponential components.