Answer to Question #196909 in Civil and Environmental Engineering for Kelly

Answer to Question #196909 in Civil and Environmental Engineering for Kelly

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Question #196909

A raft foundation subjects its supporting soil to a uniform pressure of 300 kPa. The dimensions of the raft are 6.1m by 15.25m. Determine the vertical stress due to the raft at a depth of 4.58m below it at the central points of the long edges.

Expert’s answer

Influence factors for the vertical stress beneath the corner of a rectangular foundation (afterFadum, 1948).i) at the center of the raft z= 4.58 mm= n= = 1.67 obtained from the graph. ii) at the central point of long edges.

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