Q.
List down the common types of piles for pile foundation.
A.
Functions of piles refer here.
Piles are classified into the following four type.
(a) Large-displacement piles, which include all solid piles, including precast concrete piles, and steel or concrete tubes closed at the lower end by a driving shoe or a plug,i.e. cast-in-place piles.
(b) Small-displacement piles, which include rolled steel sections such as H-piles and open ended tubular piles. However, these piles will effectively become large displacement piles if a soil plug forms.
(c) Replacement piles, which are formed by machine boring, grabbing or hand-digging. The excavation may need to be supported by bentonite slurry, or lined with a casing that is either left in place or extracted during concreting for re-use.
(d) Special piles, which are particular pile types or variants of existing pile types introduced from time to time to improve efficiency or overcome problems related to special ground conditions.
Ref:
Types of piles, available from
http://constructionduniya.blogspot.my/2012/02/design-and-construction-of-pile.html
http://constructionduniya.blogspot.my/2012/02/design-and-construction-of-pile.html