PILETEC'S PILING SERVICES
TYPES OF PILING
Sectional flight auger
Controlled Tremie Grouting
The ground formation in which the holes for open bored piles are to be drilled must be of such a nature that the drilled holes will retain their shape and will not cave in when concrete is placed. Because of cave-in and concrete placement difficulties, these piles are not recommended where groundwater is present, unless dewatering can be done without unreasonable effort and unless concrete can be placed without a casing having to remain in place.
A limitation of pre-drilling is that the bearing capacity of the pile may be reduced due to decompression. This aspect must be taken into consideration when the load carrying capacity of the pile is estimated.
Odex Piling
Super Jaws
Designed for top performance in both overburden and solid rock formations.
Large bit face area for transferring blow energy to the formation yielding faster penetration rates.
Uniquely designed bit wings extend out further than the casing O.D. when the bit reaches bottom to allow simultaneous drilling and casing.
The bit can be used to the full operating pressure of the hammer resulting in rapid penetration and minimum drilling time.
Bit wings retract inside the casing when the hammer is pulled off bottom. No reverse rotation, which can cause unscrewing, is required.
No ring bits or other drilling equipment is left down the hole.
The flexibility of Grundomat driven piles lies in the fact that they can be used where other pile driving solutions simply cannot. Restricted access needn’t be a problem and this means that driven piles can be added in extremely hard to reach situations while still only requiring a small pile driving team consisting of 2 people.
The minimal vibrations and low noise mean that they can even be used in residential areas for the construction of extensions and conservatories on residential properties. Grundomat piles are also widely used on the railway infrastructure
The rotary percussive drilling method ensures minimal disturbance is caused during installation compared to driven piling systems, enabling the foundations of old structures or buildings to be upgraded without damage. Pile stiffness can be increased by placing a steel tube over the top 2m of bar and grouting the annulus.