(Solved): A 48 -inch diameter drilled shaft has a bell, Db=8 and is placed 55 -feet deep in sand. The s ...
A 48 -inch diameter drilled shaft has a bell, Db=8′ and is placed 55 -feet deep in sand. The soil from the ground down to 40 feet deep has γ=109#/ft3. The layer from 40 feet deep to the bottom has γ=116#/ft3. The soil's angle of internal friction is 27∘. If a Factor of Safety of 3.0 is utilized, what is the allowable point capacity, Qp(all) for this drilled shaft? 270 kips 460 kips 875 kips 1,335 kips