Question a.

5%,0.5%

, c.

2%0

\ The initial excess pore water pressure over a fully saturated clay layer of

5m

thickness is 75

k(N)/(m^(2))

. Variation of the remaining excess pore water pressure in the clay layer at a given time following the start of consolidation is plotted on the figure below.\ a) What type of boundary conditions exist on top and bottom of the clay layer? Hint: consider the shape of excess pore water pressure distribution curve.\ b) What are the degrees of consolidation

U_(z)

, at depths

z=0

and

z=2.5m

in the clay layer?\ c) If the shaded area in the above figure is

337.5k(N)/(m)

, determine the average degree of consolidation for the complete layer.

Question 5(15%;a.5%,0.5%, c. 7%) The initial excess pore water pressure over a fully saturated clay layer of 5m thickness is 75 kN/m2. Variation of the remaining excess pore water pressure in the clay layer at a given time following the start of consolidation is plotted on the figure below. a) What type of boundary conditions exist on top and bottom of the clay layer? Hint: consider the shape of excess pore water pressure distribution curve. b) What are the degrees of consolidation Uz, at depths z=0 and z=2.5m in the clay layer? c) If the shaded area in the above figure is 337.5kN/m, determine the average degree of consolidation for the complete layer. Question 5(15%;a.5%,0.5%, c. 7%) The initial excess pore water pressure over a fully saturated clay layer of 5m thickness is 75 kN/m2. Variation of the remaining excess pore water pressure in the clay layer at a given time following the start of consolidation is plotted on the figure below. a) What type of boundary conditions exist on top and bottom of the clay layer? Hint: consider the shape of excess pore water pressure distribution curve. b) What are the degrees of consolidation Uz, at depths z=0 and z=2.5m in the clay layer? c) If the shaded area in the above figure is 337.5kN/m, determine the average degree of consolidation for the complete layer