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Minipiles
Technique
… … Can be combined with other techniques to meet unique or complex
project
requirements cost-effectively and efficiently … Electric rigs … high-strength, small-diameter steel casing and/or threaded bars. …
The
casing, with a diameter generally in
the
range
of
200-600mm is advanced to
the
design depth using a drilling technique. …
/expertise/techniques/minipiles
Jet grouting
Technique
… Effective across
the
widest range
of
soil types
of
any grouting system, including silts and most clays … Ability to … column diameter:
the
Acoustical Column Inspector or ACI, ensure
project
requirements are met. …
/expertise/techniques/jet-grouting
CFA piles
Technique
… rock … Can achieve pile depths up to 32m and with various diameters
of
300 mm to 1000mm+ … Low noise levels and no vibration so ideal in … installation time than for bored piles. Reinforcement is placed into
the
wet concrete after casting, enabling
the
pile to resist
the
full … load-settlement performance. Selection
of
verification technique is
project
and application specific. …
/expertise/techniques/cfa-piles
Anchors - single bond length
Technique
… Pre-stressing reduces movement
of
support structures … Can be executed in any type
of
soil … Can reduces pile diameter
of
retaining walls or system … … minimising horizontal deflections. … A stable borehole is executed to
the
right diameter and designed length, filled with cement grout and …
/expertise/techniques/anchors-single-bond-length
SBMA
Technique
… … Can be executed in any type of soil, but especially suited to soft
and
medium soil conditions … Single bore multiple anchor (SBMA) are … ground anchors with multiple strands, each bonded to the soil/rock
and
carrying a load. … A stable borehole is executed to the right … to achieve better performance. Testing
and
monitoring ensures high
quality
execution. …
/expertise/techniques/sbma
Bored piles
Technique
… buildings as well as stabilising and retaining slopes … In a variety
of
infrastructure projects such as tunnelling, road or bridge … Watch our video at Morpeth … Bored piles are a very effective, state-
of
-
the
-art construction element with many applications in foundation and …
/expertise/techniques/bored-piles
Soil nails
Technique
… slopes or existing retaining walls … Allows excavation to start at
the
same time as
the
shoring system is being installed … Stabilise … system is installed on
the
exposed face, followed by
the
application
of
reinforced shotcrete wall facing. Precast face panels can also be used. Bearing plates are then fixed to
the
heads
of
the
soil nails. This installation process is repeated until
the
…
/expertise/techniques/soil-nails
Slurry cut-off walls
Technique
… … Permeability 1x10-9m/sec … Resistant to range of heavy metals
and
organic contaminants including volatile organic compounds (VOCs), hydrocarbons, diesel, solvents
and
tars … Create barriers to groundwater flow … Encapsulate … across the globe. A specially developed mix combined with strict
quality
control ensures consistency
and
a product installed
and
designed …
/expertise/techniques/slurry-cut-off-walls
Mixed modulus columns CMM ®
Technique
… use make it a more environmentally-friendly solution … Allows
the
use
of
shallow foundations to support structures on compressible … installed on top. Its length is adapted to
the
characteristics
of
the
project
(bottom level
of
the
shallow foundations, rafts and slabs; …
/expertise/techniques/mixed-modulus-columns
Rigid inclusions
Technique
… Allows
the
use
of
shallow foundations to support structure on compressible soils … Increases
the
bearing capacity
of
weak soils, even for high loads … Reduces settlements very …
The
type and frequency
of
tests varies based on
the
size
of
the
project
and
the
geotechnical context. …
/expertise/techniques/rigid-inclusions
Vibro compaction
Technique
… ground-improvement method that can be adjusted to a wide variety
of
soil conditions and foundation requirements … Offers an economical … vibration … Only a small quantity
of
soil has to be removed during
the
process so avoids
the
cost
of
spoil removal associated with … up to ground level.
The
required treatment depth is designed for each
project
and is typically in
the
range
of
5 to 15 metres with a maximum …
/expertise/techniques/vibro-compaction
Vibro stone columns
Technique
… ground-improvement method than can be adjusted to a wide variety
of
soil conditions and foundation requirements … Can be carried out to … for sand compaction and land reclamation … This technique involves
the
improvement
of
weak soils by
the
installation
of
densely compacted … during
the
construction process to keep
the
vibro compaction within
project
specifications. Variations on
the
product include vibro concrete …
/expertise/techniques/vibro-stone-columns
Vibro concrete columns
Technique
… Only a small quanitity
of
spoil is generated … A versatile technique that can be adjusted to a … … A bottom-feed, down-hole vibratory probe is lowered through
the
weak strata to
the
underlying firm stratum and granular bearing … during
the
construction process to keep
the
vibro compaction within
project
specifications. Specialist Contact | Derek Taylor - …
/expertise/techniques/vibro-concrete-columns
Environmental stone columns
Technique
… Reduces risk
of
acquifer contamination … Offers an economical alternative to piling … … potential path for contamination. In reality, vibro treatment reduces
the
mass permeability and so this is rarely an issue. However, in some … during
the
construction process to keep
the
vibro compaction within
project
specifications. Specialist Contact | Rob Herring - …
/expertise/techniques/environmental-stone-columns
Dry soil mixing
Technique
… Quiet
and
vibration free … Environmentally-friendly as uses readily available … time … Applicable in soils that have a high moisture content,
and
often used in high groundwater conditions, to allow chemical … | Nigel Matthews - nigel.matthews@keller.com - +44 (0)7918 905057 …
Quality
is controlled
and
assured through column installation protocols …
/expertise/techniques/dry-soil-mixing
Wet soil mixing
Technique
… Quiet
and
vibration free … Environmentally-friendly as uses readily available … methods … Flexible in application … Reduces construction time … Road
and
railway embankments … Support of strip, pad
and
slab foundations … | Nigel Matthews - nigel.matthews@keller.com - +44 (0)7918 905057 …
Quality
is controlled
and
assured through column installation protocols …
/expertise/techniques/wet-soil-mixing