Low mobility (compaction) grouting involves the injection of a low slump, mortar grout to densify loose, granular soils and stabilise subsurface voids or sinkholes.
Bulk filling generally uses a cement/pulverised fuel ash (PFA) mix to suit site conditions with compressive strengths in the order of 1.0 N/mm2. The mixes may include Sand and Bentonite etc as required. Gravel is introduced to fill major voids and/or to form containment barriers.
Driven piles are deep foundation elements installed using impact or vibration hammers to a design depth or resistance.
Micropiles, also known as minipiles, pin piles, needle piles, and root piles, are a deep foundation element constructed using high-strength, small-diameter steel casing and/or threaded bars.
Bored piles are a very effective, state-of-the-art construction element with many applications in foundation and civil engineering.
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 for reinforcement and anchors can provide additional lateral support, if needed.
Keller designs and constructs cost-effective build or design-build geotechnical solutions for the industrial and manufacturing sector.
Keller Polska has wide experience of provide the energy sector with cost-effective solutions to ground problems.
Keller Polska can provide solutions for the full range of institutional structures including government and military, education, healthcare, and sports and entertainment.
If a construction project needs to monitor structural or ground movement or environmental properties like temperature, noise or vibration, Keller Polska can design and install an instrumentation scheme, provide the software that gathers the information and present it in an easy to use format.…
Increasing land shortage is driving a need to use more brownfield and marginal land often requiring groundwater and soil remediation to reduce contaminants. Keller Polska is the ideal partner for remediation projects, offering the optimal solution to make contaminated land suitable for re-use.…
Keller Polska draws on its extensive experience with the full range of techniques to provide optimal slope stabilisation solutions that retain soil in natural, unstable slopes or man-made excavations.
Soils often need treating to support the weight of a building or to withstand the loads imposed by a piece of infrastructure. This can mean improving the ground or putting in foundations to transfer the loads to deeper more competent layers.
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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.
A bridge crossing a body of water creates difficult conditions for the construction of its foundations. Keller can use various techniques to meet the challenges according to the soil, environmental impact assessment, current and water depth.
