3. Cast-in-situ concrete piles
In this type of concrete piles, a bore is dug into the ground by inserting. This bore
is then filled with cement concrete after placing reinforcement,
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4. RAYMOND PILE
RAYMOND PILE is used primarily as a friction pipe. It is uniform heavy taper of
1in30 result in short piles for equal driving resistance or higher driving resistance for
equal lengths, than piles of lesser or no taper.
Length – 6 to 12m
Diameter – 40 to 60cm at top & 20 to 30cm at bottom.
Depth – 36m
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6. MAC-ARTHUR PILES
best example of non-taper pile.
Length – 10 to 12m
Diameter - Uniform
Depth – 23m
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7. SWAGE PILES
Swage piles are used with advantage in some soils where the driving is very hard or
where it is desired to leave water tight shell, for some time before filling the concrete.
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8. BUTTON BOTTOM PILES
These piles are used in locations where increase in the end bearing area is desired. The
pile uses a concrete plug of shape of button. There piles have been used up to lengths of
about 23 m and for loads up to 50 tones.
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