Question

Difference between bored and driven piles

Answer 1

Bored piles (Replacement piles) are generally considered to be non-displacement piles a void is formed by boring or excavation before piles is produced. Piles can be produced by casting concrete in the void. Some soils such as stiff clays are particularly amenable to the formation of piles in this way, since the bore hole walls do not requires temporary support except cloth to the ground surface. In unstable ground, such as gravel the ground requires temporary support from casing or bentonite slurry
Driven piles are considered to be displacement piles. In the process of driving the pile into the ground, soil is moved radially as the pile shaft enters the ground. There may also be a component of movement of the soil in the vertical direction.

Answer 2

COMMON DEEP FOUNDATIONS(US Practice for Support of Structures)

DRIVEN

•

Concrete

 –10”, 12”, 14”, 18”, 24”, 30” and 36” square

PSC

 –36” to 66” Cylinder 

 

•

Steel

 –10”, 12” and 14” HP (16” and 18” now being

rolled)

 –8” to 36”+ pipe (open or closed)

 

•

Wood

 –7” to 10” tip diameter, L<65’

 

•

Composite

 –

PSC top with HP, W, or Pipe section bottom

BORED

•

Drilled Shafts

 –3’ to 12’

 

•

Micropiles

 –5” to 12”

 

•

Drilled Displacement

 –14” to 18”

 

•

Continuous Flight Auger (CFA)

 –12” to 24”

 

Hope it helps.

Mark as brainliest