What is the maxi-mum permissible upward gradient

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The foundation soil at the toe of a masonry dam has a porosity of 41% and a p, of 2.68 Mg/m3. To assure safety against piping, the specifications state that the upward gradient must not exceed 25% of the gradient at which a quick condition occurs. What is the maxi-mum permissible upward gradient? (After Taylor, 1948.)

Reference no: EM131165078

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