Question

If the saturated density of a given soil is 2.1 t/m3, then the total stress (T in t/m${}^2$) and the effective stress ( E in t/m${}^2$) of a saturated soil stratum at a depth of 4 m will be

T E

• A. 4.4 2.4
• B. 5.4 3.4
• C. 7.4 4.0
• D. 8.4 4.4

Answer 1

The correct option is D 8.4 4.4

$Totalstress={\gamma }_{sat}Z=2.1\times 4$
$=8.4t/m^2$
$Porepressure={\gamma }_{w}Z=1\times 4=4t/m^2$
$Effectivestress=8.4-4=4.4t/m^2$