Chesterfield, Jewsons

COMPLEX KING POST WALL DESIGN, BUILD AND INSTALL TO ACCOMMODATE JEWSON – ONE OF THE UKS MOST PROMINENT BUILDERS MERCHANTS

Project Description

CLIENT Jewsons

CONTRACTOR Port One

EQUIPMENT LB24 CFA Rig / Crane

TYPE OF CONTRACT Subcontract

SCOPE OF WORKS 2.45-4.64m King post wall at 122l/m in length

CONSTRUCTION PERIOD May 2021 – June 2021

As the HS2 Station Master plan sets out a vision to create a
vibrant gateway to the North, the current location of the Jewson’s
Chesterfield branch is no longer suitable due to the impact of
works carried out to develop the HS2.

Jewson, which currently owns 500 branches across the UK,
has relocated their former chesterfield branch to Sheffield Road,
continuing their brand’s presence in Chesterfield, which has been
a home for Jewson for just over 25 years.

Morgan Sindall was appointed as the main contractor and expect
the end-project to be completed in early 2022.

Aarsleff Ground Engineering has been sub-contracted to assist
with slope stabilisation, and therefore proposed construction
for a king post retaining wall solution to enable the formation of
a commercial unit and service yard. The lower-level design for
the service yard has been designed to allow direct access from
Sheffield Road. The king post wall also supports the existing
Stagecoach yard during and after excavation works.

The main challenge of the project was working within restricted
access to allow Stagecoach to resume regular business by
eschewing the area and allocating space for buses to enter and
exit the premises frequently. Manoeuvring a crane and a
heavy-duty rig, Aarsleff’s LB24 rig was exceptionally challenging,
but fortunately, the ground conditions were fair and supported
the weight and movement of both machines.

Using Aarsleff’s LB24 rig, the wall was installed top-down. The
LB24 Junttan rig drilled/augered to the design toe depth before
king post columns were placed in open piles using a crane. The
piles were concreted to the top for maximum stabilisation. The
height of the retained wall varied from 2.45 – 4.64m, with a total
wall length reaching 122 l/m, which was designed by Aarsleff’s
in-house design team.

King post walls are a quick and straightforward installation. They
comprise boring a hole with our LB24 continuous flight auger
rig before filling it with concrete, then installing an H beam. The
H beam allows concrete or pre-stressed panels to be inserted
between the webs of the H sections.

Works began on w/c 10th of May and finished w/c 1st of June, on
time and in budget.

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Case Study

A leading UK ground engineering specialist, focusing on multi-discipline excellence and value engineering. We design and deliver some of the UK’s largest ground engineering projects.

Our vision is to bring confidence to those constructing the landscape of tomorrow .

1947. Central Jutland, Denmark. Per Aarsleff borrowed 10,000 Danish Kroner from his father’s life insurance, bought an excavator, and founded Northern Europe’s leading contracting company.

Our biggest asset, our team is composed of the leading experts in ground engineering. Working with collaboration and cohesion at the core of our business, we can guarantee a quick and founded answer to all your questions.

We recruit and reward our people based on our ‘Step into the Blue’ company culture, where we embrace the core values of Life and Health, Trust, and Responsibility.

We do everything to ensure our team and yours work safely on our sites. With our core value of Life & Health, we see safety as a cultural pillar.

Our ISO accreditations are an assurance to you that we take governance seriously. Read our policies to discover more.

The projects that keep society running. Bridges, buildings, transit and rail facilities, embankment support, marine and offshore facilities, mines, airports, and water projects.

Keeping things turning. Sewage Treatment Works, Waste Water Treatment Works, Wind Farms and Wind Turbines, Biomass Plants, and Power stations.

Meeting society’s needs. Nursing and care homes, MOD buildings, Schools and Universities, and small or large-sized residential developments.

Staying on the move. Remediation, bridges, and foundation work are integral to keeping the industry running smoothly.

The landscape of the marketplace. Mega-retail sheds, distribution warehouses, University accommodation, and major supermarket and household name units.

Keeping things afloat. Ports and harbours, coastal defences, river embankments and inland waterways.

Technically trained estimators and a dedicated, in-house design team means we consider value-engineering at every stage of your project.

More than just a model, Visual Design & Construction is a tool to encourage collaboration and improve quality across all facets of a scheme.

From large commercial sheds to small residential plots, piling could be the foundation solution you need to support your project.

Issues around collapse, slipping or erosion? Our experts in retaining solutions have a broad portfolio of techniques designed to fix even the most nuanced of sites.

Tricky ground conditions or requirements? Aarsleff’s ground engineering team work on stabilisation through a varied range of techniques, bespoke to the properties of your site ground.

Our plant workshop offers a range of services designed to ensure your plant works for you. Whether it’s manufacturing and fabrication of equipment for long-term needs or hire so you can complete something specific.