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Question 6.6: A rectangular raft of size 30 x 12 m founded on the ground s...

A rectangular raft of size 30 x 12 m founded on the ground surface is subjected to a uniform pressure of 150 kN / m ^{2}. Assume the center of the area as the origin of coordinates (0,0), and corners with coordinates (6, 15). Calculate the induced stress at a depth of 20 m by the exact method at location (0, 0).

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