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Mixed modulus columns CMM ®
Technique
… loads … Reduces settlements very efficiently (with a reduction factor
in
the range of three to ten) … Resistant to horizontal forces without … of a dedicated load transfer transfer platform (very good adapted
in
seismic areas) … Mitigates the punching effect of inclusions beneath … risk of damage to the rigid inclusions … Construction work can,
in
most cases, start immediately after ground improvement … Industrial …
/expertise/techniques/mixed-modulus-columns
Rigid inclusions
Technique
… loads … Reduces settlements very efficiently (with a reduction factor
in
the range of three to eight) … Can be used
in
all construction sectors and applied for most types of structures and …
/expertise/techniques/rigid-inclusions
Compensation/fracture grouting
Technique
… the hydrofracture pressure of the soil is exceeded, fractures open
in
the soil and are immediately expanded by the influx of grout. This results
in
the controlled heave of the overlying soils and structures. … Grout injection data is plotted against time and summarised
in
three dimensional plots and reports. …
/expertise/techniques/compensation-fracture-grouting
Wet soil mixing
Technique
… … Can replace more expensive deep foundation methods … Flexible
in
application … Reduces construction time … Road and railway … mixing them with cementitious binder slurry. … A powerful drill
advances
a contra mixing tool as binder slurry is pumped through the … rows of overlapping columns with a designed strength and stiffness.
In
conjunction with finite element analysis, the system is designed to …
/expertise/techniques/wet-soil-mixing
Dry soil mixing
Technique
… … Can replace more expensive deep foundation methods … Flexible
in
application … Reduces construction time … Applicable
in
soils that have a high moisture content, and often used
in
high … cementitious binder. … To construct the columns, a high-speed drill
advances
a drill rod with radial mixing paddles near the bottom of the …
/expertise/techniques/dry-soil-mixing
Minipiles
Technique
… Can be installed
in
restricted access and low headroom sites with minimal disruption to … … Alleviates quality assurance concerns associated with cast-
in
-place piling
in
weak soils … Can be combined with other techniques to meet unique or …
/expertise/techniques/minipiles
Restricted access piles
Technique
… buildings, under bridge structures and within tunnels … Can be used
in
all ground conditions, including obstructed ground and rock … … sensitive sites … Underpinning buildings and structures from within …
In
restricted access situations, where large, heavy conventional plant … or a standard doorway. … The casing, with a diameter generally
in
the range of 100-1080mm is advanced to the design depth using a …
/expertise/techniques/restricted-access-piles
Jet grouting
Technique
… including silts and most clays … Ability to construct soilcrete
in
limited spaces and around subsurface obstacles such as utilities, … … Low headroom equipment enables construction of soilcrete
in
limited spaces such as basements … Ability to work around subsurface … at depth without having to treat soils above … Can often result
in
construction schedule savings … Can usually be done without …
/expertise/techniques/jet-grouting