Module 6 : Design of Retaining Structures
Lecture 28 : Anchored sheet pile walls [ Section 28.1 : Introduction ]
   
  Introduction
 

Anchored sheet pile walls are held above the driven depth by anchors provided at suitable level. The anchors provide forces for the stability of the sheet pile, in addition to the lateral passive resistance of the soil into which the sheet piles are driven.

 
 
Fig. 6.17 Anchored sheet pile wall
 

It includes an anchor or tieback at or near the head of the wall. More than one set of anchors or tiebacks can be used. It increases wall stability and enables taller walls to be built and sustained almost a necessity with vinyl, aluminium and fiberglass sheet piles. It is not exclusive to sheet piling; also used with other types of in situ wall systems. In case of cantilever sheet pile walls if the deflection at top point of the sheet pile wall is very large, then settlement of soil takes place at top just behind the sheet pile wall. So, to reduce the excessive deflections the anchors are provided. The different types of anchored sheet pile walls are shown in figure.

   
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