Example: for homogeneous earth dam shown in fig. Cohesion (C) = 2.4 ton/m2
Angle of internal friction (θ)=25o
γd= 1.8 ton/m3
Submerged weight of soil γs=1.2 ton/m3
,
Area above the phreatic line=380 m
2
Area below the phreatic line=929 m
2,
Now, check the overall stability of the dam.