Civil Engineering Reference
In-Depth Information
Sequence of operations
1 : Hole is bored
using continuous
flight auger
2 : Founding depth
is reached. Grout pipe
connected to head
of auger stem
before it is
withdrawn
3 : The sand/cement
grout is injected
and the auger
stem is withdrawn,
rotating slowly.
Spoil is removed
during this process.
4 : On completion of
grouted pile the
reinforcement cage
is lowered.
5 : Finished
Cemcore pile.
Platform
Level
Pump
Mixer
Fill
Granular
Strata
Soft
Rock
Figure 3.30
Construction of grouted 'Cemcore' pile by the CFA process. (Illustration courtesy of
Cementation Piling and Foundations Ltd., Rickmansworth.)
