Extracted text: Consider a close ended reinforced concrete pile with a diameter of 500mm and the soil profile shown in figure below. Use a FS = 3 if necessary. Assuming that pile settles sufficiently so that the shear strength of the soil is fully mobilize. (Use 200) a) Calculate the allowable compressive land of one pile if the groundwater table is located at Sm below the ground surface. b) Determine the required length of pile if a single pile should support on structural load of 1200 kN from a column of the structure. (Groundwater table at ground surface) Y= 15 kN/m Ya- 18 kN/m C,- 30 kN/m' Soft clay a- 0.9 Y=20 kN/m' - 40° Nq' - 170 k-1 8-0.8 0 Dense sand 10 m