Refer to Fig. 8.5a. Determine: (a) Using log interpolation between 100 and 1000, determine the v value at a vertical strain, v =

Refer to Fig. 8.5a. Determine:

(a) Using log interpolation between 100 and 1000, determine the  σ_v  value at a vertical strain, ε_v = 20%.

(b) If the initial void ratio, e_o = 2.6, determine Cr and Cc for this soil. For Cc use the portion of the curve between  σ_v  = 100 and 500 kPa.

(c) If the original clay layer thickness is 9.5 m, determine the settlement that occurs in the layer when it is loaded from 200 to 400 kPa. [You don't need the results from part (b) to do this]

2.6 2.4 10 2.2 Laboratory virgin compression curve 2.0 1.8 1.6 30 1.4 1.2 40. 10 1.0 100 1000 100 1000 Effective consolidation stress, e (kPa) Effoctive consolidation stress, e (kPa) (a) (b) Vertical strain, , (%) Void ratio, e