Enabling Works:
Barratt Developments & Bovis Homes, Staffordshire

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Challenge

Bulk earthworks and ground engineering to prepare this former Akzo Nobel site for a 700-unit development. This includes new homes, elderly living facilities, a school and commercial space.

To keep works on programme, Barratt and Bovis needed the earthworks strategy to be efficiently designed and executed.

Because soils were made up of silt and clay, which drains poorly in wet weather, we had to work quickly during dry periods.

Solution

We supported the client for over 12months before works started, creating an efficient and cost-effective earthworks strategy through cut/fill modelling.

Our team value-engineered the earthworks specification, real-time compaction, and geotechnical testing, which was done at a fraction of the cost of traditional methods.

As part of just-in-time enabling works, we delivered archaeological investigations onsite alongside the client’s consultant. This was done carefully to avoid cross-contamination of undisturbed soil by made ground.

Using our intelligent plant, we stripped over 65,000m3 of topsoil and carried out the cut/fill of 150,000m3 material over two phases. Materials movements were recorded in real-time for verification.

Soils were stabilised in specific areas to provide bearing capacity for road boxes and piled plots.

Results

  • Saved 5 weeks off the original programme
  • Cut costs through real-time compaction and geotechnical testing
  • Ensured zero offsite disposal of soils
  • Delivered a 21ha build-ready platform entirely in-house

Project fact file

Client Barratt Developments & Bovis Homes
Site Area 210,000m2
Time Frame 32 Weeks
Location Staffordshire
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How early involvement cut programme time

By carrying out a series of earthworks test panels onsite, we pre-determined the optimum layer thickness and degree of compaction. This included correlating in-situ geotechnical testing with laboratory testing, which allowed for real-time testing on site and eliminated test result delays.

Working with Travis Baker, we gained full stakeholder acceptance – including NHBC – of our proposed approach.

As part of the earthworks strategy, our team value-engineered suitable fill areas for future foundation, road and sewer arisings – this meant no soil was disposed of off-site.

Contact us to discuss your project

Speak to our team for more information on our end-to-end brownfield remediation and enabling works services.