- 2079 Bhadra · 2 marks
Why sheet pile is a flexible structure
Short answer
A sheet pile wall is slender with low flexural rigidity, so it bends and deflects under lateral earth pressure rather than moving as a rigid body. Its stability relies on bending strength, embedment depth, and passive resistance, not own weight, making it a flexible retaining structure.
Why is a sheet pile wall considered a flexible retaining structure?
A sheet pile wall is thin and long (slender), with low flexural rigidity compared to a gravity or cantilever wall. Under the earth pressure it bends and deflects, mostly in the cantilever or between supports, and it does not move as a rigid body. Its stability depends on bending and the passive resistance of the embedded part and anchors, rather than on its own weight. Therefore it is called a flexible retaining structure.
✓ Answer checked by Claude Sonnet 5.5
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