Figure P13.1 shows a drilled shaft in sand. Determine the maximum load that can be allowed on it. Assume δ' = 0.6ϕ' and allow a factor of safety of 4. Use Berezantzev et al.’s Eq. (13.18) for computing the point load. What fraction of the load-carrying capacity is derived from the shaft?

Figure P13.1

Transcribed Image Text:

0.8 m Loose sand y = 17.5 kN/m3 o' = 31° 8 m Dense sand 1 m y = 18.5 kN/m 1.6 m o' = 38°