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4. When expansive or collapsible soils
exist and extended for a great depth at
the site of a proposed structure. (See
Figure 1.d)
5. Piles are sometimes used for basement
mats below the water table to resist
the uplifting force. (See Figure 1.e)
6. Piles are usually constructed for bridge
abutments and piers to avoid the loss
of bearing capacity due to soil erosion
at the ground surface. (See Figure 1.f)
Types of Pile w.r.t Materials
Timber Steel Steel H Concrete Pre-cast Composite
Pipe Concrete
Timber
Steel Concrete
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