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Vibro stone columns are the most commonly specified ground improvement method. They can be tailored to meet a wide variety of bearing capacity and settlement requirements and provide an economical and sustainable alternative to traditional piling and deep foundations.Ìý

Vibro stone columns are ideal:Ìý

• In granular soils, mixed fills, and cohesive soils, with bearing pressures of between 100-200kN/m2 typically achievableÌý
• To construct columns to depths of up to 12 metres (depending upon the loading and ground conditions)Ìý
• To improve settlement by a factor of 1.5 to 3 on most projectsÌý
• To accelerate the dissipation of excess pore water generated by loading pressures
• As an alternative to more expensive piling systems - due to speed of installation and cheaper materialsÌý
• For a vast array of sectors and applications, including housing, road, rail, ports, commercial, retail, industrial, education, medical, wind farms, utilities, leisure and military projects

View our technical data sheet below:

Vibro concrete plugs

Vibro concrete columns are an effective ground improvement technique developed to provide integrity through weak organic soils or to provide greater settlement control than can be achieved with vibro stone columns.Ìý

Vibro concrete columns are ideal:Ìý

• On contaminated piling sites where spoil removal is to be avoided, i.e. for regeneration of brownfield sitesÌý
• Where peat and organic soils preclude conventional vibro techniquesÌý
• Where founding at a high level is required to avoid piling into an aquiferÌý
• Where short construction programmes dictate fast-track installation & high production levels
• For loads/settlement control with a load transfer platform.Ìý

View our technical data sheet below:

Vibro Concrete Columns

Vibro compaction is an established technique for stabilising granular soils such as loose sands, gravels and some hydraulic fills using vibroflots.ÌýBenefits include:Ìý

• Vibro compaction techniques are well established and in suitable soil types can be used for construction of tank farms, ports and marine structuresÌý
• Vibro compaction is extremely effective for sand compaction, and to date, we have utilised the technique in the Middle East, North America and the MediterraneanÌý
• Vibro compaction can provide fast, in-situ densification of loose sands to depths of up to 30 metres and is one of the most economical and sustainable ground improvement methods availableÌý
• Vibro compaction significantly reduces the threat of liquefaction in the event of seismic shocksÌý

View our technical data sheet below:

Vibro Compaction

A ground improvement technique that offers an economical alternative to piling that, unlike other systems, can be used in virtually any ground conditions.Ìý

Because it is a ground improvement method it produces little or no spoil and what's more, it's really fast. Up to 2,500 metres per week can be achieved.Ìý

Applications include:Ìý

• Road and railway embankmentsÌý
• Retail/industrial unitsÌý
• HousingÌý
• TanksÌý
• Retaining walls
• SlopesÌý

View our technical data sheet below:

Pencol Rigid Inclusions Technique Sheet

For more information please email us or call 01256 400400

The dynamic compaction technique involves using a crane to drop weights of between five and 20 tonnes, from heights of up to 20 metres. As a result, this technique is best suited to large, open sites where few obstructions are present.Ìý

Dynamic compaction is beneficial to your project as:Ìý

• Excavation is not usually required making the solution highly suitable for use on contaminated or obstructed sitesÌý
• Levels can be reduced by up to 10% of the depth of fill being treated, reducing the amount of spoil requiring disposalÌý
• It is frequently used for re-development of old domestic landfill sites, to collapse existing voids and accelerate the long-term settlement between piled structures and the surrounding hard standing areasÌý
• It is extremely economical and can be used for large sitesÌý
• It can be combined with rapid impact compaction and vibro techniques to allow treatment to within 10 metres of buildings

View our technical data sheet below:

Dynamic Compaction