Dynamic Compaction is a ground improvement technique that densifies granular materials by using a drop weight and it is applicable to both saturated and unsaturated soils. The basic principle of this technique is the transmission of high energy impacts to loose granular soil which initially have…
Rapid impact compaction densifies shallow, granular soils, using a hydraulic hammer, which repeatedly strikes an impact plate on the ground surface.
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, are a deep foundation element constructed using high-strength, small-diameter steel casing and/or threaded bars or simply constructed as small diameter concrete bored pile with normal steel bars.
Bored piles are a very effective, state-of-the-art construction element with many applications in foundation and civil engineering.
Bored piles are a very effective, state-of-the-art construction element with many applications in foundation and civil engineering. Temporary and permeant steel casings are used for a number of engineering reasons.
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.
This technique involves construction of concrete columns with a bottom-feed, down-hole vibratory probe to transfer loads through weak strata to a firm underlying stratum.
Keller designs and constructs cost-effective build or design-build geotechnical solutions for the industrial and manufacturing sector.
Keller has wide experience of providing the energy sector with cost-effective solutions for over 45 years throughout the Middle East.
Keller can provide solutions for the full range of institutional structures including government and military, education, healthcare, and sports and entertainment.
Increasing land shortage is driving a need to use more brownfield and marginal land often requiring groundwater and soil remediation to reduce contaminants. Keller is the ideal partner for remediation projects, offering the optimal solution to make contaminated land suitable for re-use.
Slope stabilisation is often required to retain soil in a natural, unstable slope or in man-made excavations. Keller draws on its extensive experience with the full range of techniques to provide optimal slope stabilisation solutions for various projects.
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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