Lecture 28 : Anchored sheet pile walls [ Section 28.3 : Design of sheet pile wall by free earth support ]
Fig. 6.23 Forces acting on sheet pile in free earth support case (cohesive soil)
From the horizontal equilibrium of the forces, or – d = T
Where, T is the tensile force in the anchor, is the resultant earth pressure acting below the dreaged level, is the resultant earth pressure acting above the dreaged level.
or 
– 
d = T 
is the resultant earth pressure acting below the dreaged level, 
is the resultant earth pressure acting above the dreaged level. 
