Question: A 9m square concrete pile is driven in a loose sand By soil exploration the following properties have been found Unit weight 1725kNm Angle of

A 9m square concrete pile is driven in a loose sand By soil exploration the following properties have been found Unit weight 1725kNm Angle of Internal Friction 30 Coefficient of friction 045 Nq 80 Considering a single pile of 30cm in a side determine the following 6 Capacity of the pile due to skin friction in kN 10pts 7 Capacity of the pile due to end bearing in kN 5p 8 Design load that the pile could carry in kN if the factor of safety is 25 5pts 9 Using the same factor of safety what is the new design load if the water table rises 2m below the ground surface which makes the soil a dense sand

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