Question

Compute the axial capacity of a drilled shaft in a cohesive soil profile. The shaft diameter is 4 ft and the length is 65 ft. The soil profile is:
0–15 ft, c=2200 psf, γ=120 pcf
15–30 ft, c 2700 psf, γ=123 pcf
30–55 ft, c 3250 psf, γ=125 pcf
55–100 ft, c linearly varying with depth from 3250 to 4400 psf, γ=130 pcf

The depth of the water table was 15 ft

Calculate the ultimate axial capacity in tension (uplift)

Answer 1

Solution! whene cs Cohesiorn hesion and length value ma be change om ej 400-3Sox (65-5s) 3aSo 65-5s

4 89 1o6 ounds 6 . Ultimate avial Copacil4.89 1o pounds