PROBLEM $3$: $[25$ POINTS$]$

Exam $02$

For the soil profile shown below:

a$.$ Determine the total stress, pore water pressure, and effective stress at the top, center and bottom of each of the soil layers. Fill in the Table below $[21$ Points$].$

b$.$ If the water level drops to the bottom of the Sand layer, what would change for Points F and G$?$ Show your calculations. $[4$ Points$].$

Fill: ${}_t=90$ pcf$,{}_{\text{s}\text{a}\text{t}}=100$ pcf

Sand: ${}_t=110pcf,{}_{\text{s}\text{a}\text{t}}=120pcf$

Clay: ${}_t=100$ pcf$,{}_{\text{s}\text{a}\text{t}}=110$ pcf

$\backslash$table$[[$Point$,$Total Stress $($psf$),$Pore Water Pressure $($psf$),$Effective Stress $($psf$)],[$A$,,,],[$B$,,,],[$C$,,,],[$D$,,,],[$E$,,,],[$F$,,,],[$G$,,,]]$