Question

A glass container with pervious bottom containing fine sand in loose state (void ratio = 0.8) is subjected to hydrostatic pressure underneath until quick condition occurs in the sand. If the specific gravity of sand
particles = 2.65, area of cross section of sand sample = 10 cm2 and height of sample 10 cm.

Compute the seepage force acting from
below (N).

Compute the head of water required to cause quicksand condition (cm).

Answer 1