Keller provides geotechnical solutions for the commerical market for both existing and planned structures, including office buildings, hotels, malls, distribution centres and other structures.
Continuous flight auger (CFA) piles are a type of bored cast-in-place replacement pile. Piles are drilled and concreted in one continuous operation enabling much faster installation time than for other piles of this type. Reinforcement is placed into the wet concrete after casting, enabling the…
Permeation grouting, also known as cement grouting or pressure grouting, fills cracks or voids in soil and rock and permeates coarse, granular soils with flowable particulate grouts to create a cemented mass.
Vibro compaction is a ground improvement technique that densifies clean, cohesionless granular soils with a downhole vibrator. It’s a technique first developed by Keller in the 1930s that we’ve used on thousands of projects since.
This technique involves construction of loadbearing columns made from gravel or crushed stones that can share the load with the surrounding soil.
Genco Egypt, a Keller Company, successfully designed and constructed 82.500 KM of (PVD) Prefabricated Vertical Drains with 22 working rigs for this landmark project.
Speaker: Michel Yon – Keller Holding Title Presentation: Geotechnical Solutions for…
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Prefabricated Vertical Drains, also known as Wick Drains or band drains are prefabricated geotextile filter-wrapped plastic strips with moulded channels. These act as drainage paths to take pore water out of soft compressible soils that consolidate faster under a constant surcharge load.
Rigid inclusions (RI) is a ground improvement method using high deformation modulus columns constructed through compressible soils to reduce settlement and increase bearing capacity.
Ground improvement efficiency depends on the stiffness relationship between the soil and the columns. Load…
Columns with Mixed moduli CMM® is a ground improvement method using low deformation modulus columns or a rigid inclusion constructed through compressible soils with a stone column head and thus creating an element with materials of different modulus of compressibility. to reduce settlement and…
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.
