Answer:
Go to explaination for the details of the answer.
Explanation:
In order to determine the lifetime (75 years) chronic daily exposure for each individual, we have to first state the terms of our equation:
CDI = Chronic Daily Intake
C= Chemical concentration
CR= Contact Rate
EFD= Exposure Frequency and Distribution
BW= Body Weight
AT = Average Time.
Having names our variables lets create the equations that will be used to derive our answers.
Please kindly check attachment for details of the answer.
Answer:
The settlement that is expected is 1.043 meters.
Explanation:
Since the pre-consolidation stress of the layer is equal to the effective stress hence we conclude that the soil is normally consolidated soil
The settlement due to increase in the effective stress of a normally consolidated soil mass is given by the formula
![\Delta H=\frac{H_oC_c}{1+e_o}log(\frac{\bar{\sigma_o}+\Delta \bar{\sigma }}{\bar{\sigma_o}})](https://tex.z-dn.net/?f=%5CDelta%20H%3D%5Cfrac%7BH_oC_c%7D%7B1%2Be_o%7Dlog%28%5Cfrac%7B%5Cbar%7B%5Csigma_o%7D%2B%5CDelta%20%5Cbar%7B%5Csigma%20%7D%7D%7B%5Cbar%7B%5Csigma_o%7D%7D%29)
where
'H' is the initial depth of the layer
is the Compression index
is the inital void ratio
is the initial effective stress at the depth
is the change in the effective stress at the given depth
Applying the given values we get
![\Delta H=\frac{8\times 0.3}{1+0.87}log(\frac{154+28}{154})=1.04](https://tex.z-dn.net/?f=%5CDelta%20H%3D%5Cfrac%7B8%5Ctimes%200.3%7D%7B1%2B0.87%7Dlog%28%5Cfrac%7B154%2B28%7D%7B154%7D%29%3D1.04)