State the assumption in Dupuiť's solution. Show that using this assumption, Casagrande's confocal parabola (as shown) to the seepage through blanket drain (a = 180 degrees) yields flow rate of q = kyo where k is the coefficient of permeability and yo = Vh² + d², corresponding to a parabola with foci at a, = yo/2, and y = h at x = d where the point (d, h) are the coordinates of the theoretical entry point on the upstream phase of the slope embankment.

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Chapter2: Loads On Structures
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ANSWER THE FOLLOWING QUESTIONS. SHOW COMPLETE SOLUTION.

State the assumption in Dupuit's solution. Show that using this assumption, Casagrande's
confocal parabola (as shown) to the seepage through blanket drain (a = 180 degrees) yields
flow rate of q = kyo where k is the coefficient of permeability and yo = vh2 + d² , corresponding
to a parabola with foci at ao = yo/2, and y = h at x = d where the point (d, h) are the coordinates
of the theoretical entry point on the upstream phase of the slope embankment.
Transcribed Image Text:State the assumption in Dupuit's solution. Show that using this assumption, Casagrande's confocal parabola (as shown) to the seepage through blanket drain (a = 180 degrees) yields flow rate of q = kyo where k is the coefficient of permeability and yo = vh2 + d² , corresponding to a parabola with foci at ao = yo/2, and y = h at x = d where the point (d, h) are the coordinates of the theoretical entry point on the upstream phase of the slope embankment.
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