Question: In a piled raft, 450 mm diameter and 13 m long piles are placed in a rectangular grid at 1.60 m 1.63 m spacing.

In a piled raft, 450 mm diameter and 13 m long piles are placed in a rectangular grid at 1.60 m × 1.63 m spacing. Find the pile-raft interaction factor α_rp, assuming uniform soil conditions with depth and µ_s = 0.1

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