CEE $630-$ Assignment #$4$

Wednesday, November $29$

A$-$ Concept Understanding:

$1-$ The overconsolidation ratio of a saturated clay at a depth of $5m$ is $5\mathrm{.}0,$ and its

water content is $41\%.$ It is believed that the clay has become overconsolidated as a

result of erosion. Calculate the thickness of the soil layer that was eroded. Assume

that the groundwater level is at the ground surface for both the past and present

conditions.

$2-$ At what depth would the vertical effective stress in a deep deposit of clay be $130$

kPa, if $e=1\mathrm{.}1?$ The ground$-$water level is at $1m$ below ground surface and $S=95\%$

above the groundwater level. Neglect pore air pressure.