2818
Proceedings of the 18
th
International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
su
hat a similar skin friction was mobilised in all three
tre
ssumed within
the original pile design it would have allowed a saving of 10m
a 25m tender design pile.
se study also shows the benefit of pile testing in
un
e shaft grouting improved the
load-displacement behaviour of the test pile with settlements
reduced by approximately 50%.
fficient coarse material to behave like a granular material
under loading from the pile.
One additional interesting observation is that the data
suggests t
ated strata, i.e. that pile T1 had uniform friction along its
length.
If a constant skin friction of 110kN/m
2
was a
in length compared to
6 CONCLUSION
The pile testing acted to confirm the ultimate pile capacity and
the pile response under loading for both treated and untreated
piles. This ca
usual ground conditions in terms of validating design
assumptions.
The shaft grouting improved the skin friction of the strata
with a high sand and gravel content by a factor of between 2.2
and 2.4. Some improvement was achieved in material with as
little as 10% sand content. Th
7 ACKNOWLEDGEMENTS
Thanks are made to Hestok Ltd for allowing details of the
project and test data to be published.
8 REFERENCE
Fleming W.G.K. 1992. A new method for single pile settlement
prediction and analysis.
Géotechnique
42 (3), 411-425.
