Answer Happy

Determine the allowable load capacity of the 0.4 m diameter pile shown in Figure 4. The fill is new and unconsolidated. A steel shell is proposed around the pile within the fill layer to eliminate the negative friction. The ground water level is at the middle of the fill layer. Use a factor of safety of 2.5. (y=moist unit weight: Ysa=saturated unit weight)
Steel shell Fill layer ... 4 m Vsat = 17 kN/m?, y = 16 kN/m3 d'= 30° K=1.2 S'=0.80' Clay (overconsolidated) Ysat = 19.5kN/m3 PR' = 30° 8'=0.60R' 10 m Sand 18 m Ysat = 18 kN/m3, y = 16.5 kN/m3 d'= 30° K=1.3 8'=0.80' 0.5 m