Lecture 28 : Anchored sheet pile walls [ Section 28.4 : Design of sheet pile wall by fixed earth support ]
Design of sheet pile wall by fixed earth support
Figure shows the deflected shape of an anchored sheet pile with fixed earth support. The elastic line changes its curvature at the inflection point I. the soil into which the soil is driven exerts a large restraint on the lower part of the pile and causes the change in the curvature. The distance of the inflection point below dredged level (i) can be related to the internal friction angle ( ) as given in table 1.
Table 1 Relation between Distance of the inflection point below dredged level (i) and Friction angle ( )
Friction angle ( )
20 0
25 0
30 0
40 0
Distance of the inflection point below dredged level (i)
0.25h
0.15h
0.08h
-0.007h
Where, h is the height of the sheet pile wall above the dredged level.
Fig. 6.24 Forces acting on sheet pile in fixed earth support case
) as given in table 1. 
) 
) 
