Module 6 :
Design of Retaining Structures
Lecture 28 :
Anchored sheet pile walls
[ Section 28.4 :
Design of sheet pile wall by fixed earth support
]
(b)
For beam IK :
determine pressure
as
or
determine distance (d-a) by taking moments of the forces in beam IK about K. the reaction
of the lower beam is equal and opposite to the upper beam.
calculate depth d from equation in step . The provided depth (D) of sheet pile is 20% higher than d.
D=1.2 d
determine the tension T in the anchor by considering equilibrium of IA beam,
T =
-
Where,
is the total forces due to pressure on IB.
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as 
or 
of the lower beam is equal and opposite to the upper beam. 
- 
is the total forces due to pressure on IB. 
