The dial readings observed during the consolidation of the clay specimen described in Problem 2 of Assignment 7 for the load increment from 0.531 tsf to 1.062 tsf are provided below. For this load increment, assume the thickness of the clay specimen in the lab is 0.95 inches with porous stones at the top and bottom. Its void ratio is 1.38 and Gs=2.76. (a) Compute the value of the coefficient of consolidation ( cv) using the log-time-fitting procedure. (b) Estimate the coefficient of secondary compression (C) based on the lab results. (c) If the clay sample was taken from a layer of clay 10ft thick that was drained on the top and bottom, how many days would it take this layer to reach 80% consolidation on average if using the cv value estimated using the log-time-fitting procedure. (d) If the clay layer described in part c was found to have a thin freely draining sand layer in the middle of the layer (i.e., at a depth of 5 feet within the clay layer), how many days would it take this layer to reach 80% consolidation on average using the same estimate of cv used in part (c). The dial readings observed during the consolidation of the clay specimen described in Problem 2 of Assignment 7 for the load increment from 0.531 tsf to 1.062 tsf are provided below. For this load increment, assume the thickness of the clay specimen in the lab is 0.95 inches with porous stones at the top and bottom. Its void ratio is 1.38 and Gs=2.76. (a) Compute the value of the coefficient of consolidation ( cv) using the log-time-fitting procedure. (b) Estimate the coefficient of secondary compression (C) based on the lab results. (c) If the clay sample was taken from a layer of clay 10ft thick that was drained on the top and bottom, how many days would it take this layer to reach 80% consolidation on average if using the cv value estimated using the log-time-fitting procedure. (d) If the clay layer described in part c was found to have a thin freely draining sand layer in the middle of the layer (i.e., at a depth of 5 feet within the clay layer), how many days would it take this layer to reach 80% consolidation on average using the same estimate of cv used in part (c)