Secant pile walls
Technique
Secant pile walls A secant pile wall consists of overlapping (secant) piles to form structural or cutoff walls and achieve the required water tightness. The design can incorporate steel bar or beams…
/en/expertise/techniques/secant-pile-walls
Dynamic replacement
Technique
Dynamic replacement Dynamic replacement is a variation on dynamic compaction and uses the energy of a falling weight to drive large diameter granular columns into cohesionless soils and fills.…
/en/expertise/techniques/dynamic-replacement
INSER piles
Technique
INSER piles The INSER® pile or screw-in moulded pile is moulded into the ground, inserted using a delivery tool, without soil extraction. It is inserted (without vibration) using a specific auger…
/en/expertise/techniques/inser-piles
Third generation piles Type 3
Technique
Third generation piles Type 3 The 3TER® hollow auger pile is a new generation continuous flight auger pile, operated using a specific work group to ensure a better quality of concreting when the…
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Induction Hydraulique®
Technique
Induction Hydraulique® Induction Hydraulique® combines the horizontal vibrations generated by the vibrator and the lateral delivery of the soil to obtain an optimal compaction of the soil. In the…
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Jet grouting
Technique
Jet grouting Jet grouting uses high velocity fluid jets to construct cemented soil of varying geometries in the ground. Keller rig demonstrating jet grouting technique Common uses Often the preferred…
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Contiguous pile walls
Technique
Contiguous pile walls Contiguous pile walls consist of piles arranged in a way that a gap remains between the piles. Where required the soil between the piles can be stabilised during excavation by…
/en/expertise/techniques/contiguous-pile-walls
King post / soldier piles and lagging walls
Technique
King post / soldier piles and lagging walls King post/soldier piles and lagging walls are a cost effective system of temporary or permanent retaining wall using beams and pre-cast concrete panels.…
/en/expertise/techniques/king-post-soldier-piles-and-lagging-walls
Diaphragm walls / barrettes – grab
Technique
Diaphragm walls / barrettes – grab Vertical panels are excavated under stabilising slurries using mechanical/hydraulic clamshell grabs or hydromill cutters to form a continuous cut-off, retaining and…
/en/expertise/techniques/diaphragm-walls-barrettes-grab
Sheet piles
Technique
Sheet piles Sheet piling retains soil, using steel sheets with interlocking edges and is applied using both vibratory and vibration-free installation rigs. Keller rig installing sheet piles Common…
/en/expertise/techniques/sheet-piles