Forest Town, Mansfield


Project Description

Data  246 sheet piles (4.5-6m)
Client  Rock Civil Engineering
Type of contract  Design and build contract
Construction period  October 2023

In October, Aarsleff Ground Engineering undertook a project local to our Nottinghamshire Head Office in Forest Town, Mansfield. Rock Civil Engineering are working to upgrade wastewater facilities in the village and Aarsleff were contracted to install a temporary sheet piled cofferdam to allow excavations to take place.

We worked in collaboration with MGF, who are market leaders in the design, manufacture and supply of modular and bespoke excavation support systems. They achieve this through technical excellence, 40 years of specialist manufacturing experience and an unfaltering commitment to providing seamless service delivery. MGF’s in-house design, manufacturing and haulage service, coupled with their lifting and safety equipment, enables them to have full control and visibility from enquiry to delivery, providing a completely seamless service in the process.

In total, Aarsleff installed 246 sheet piles using a Movax in various lengths, ranging from 4.5 to 6 metres, over a total programme of two weeks. When we arrived on site, we recognised that the ground conditions were tougher than expected and moved quickly to address the issue by pre-auguring to loosen the material. We then also drove the piles back using an air hammer. The decision and mobilisation of plant was quick and minimised potential delays for our client.

The solution installed was a cofferdam, which is a structure built to allow an enclosed area to be excavated and remain free from water. This excavation creates a dry working environment for the major work to proceed. At Mansfield, this will be the installation of attenuation tanks.

Cofferdams consist of a relatively impermeable wall built around the proposed excavation area. They are welded steel structures that are traditionally built with sheet piles, wales, and cross braces. Temporary hydraulic frames and struts are seen as being a viable reusable alternative to using walers and cross braces and are also quicker to install.

At Mansfield, 5 200 series cross struts supplied by MGF were used to support installation of a full 254UC tank brace system. Due to the fact MGF’s modular system is a reusable fleet hire option, the system also provided sustainability advantages to the client when compared with traditional welded waler systems. The fully modular system also resulted in a speedier installation compared to if a welded frame solution had been used.

The collaboration between Aarsleff and MGF has been ongoing for many years. The combination of MGF’s innovative product design and Aarsleff’s operational expertise means that we can offer value-added solutions that save our clients on time, cost, and associated emissions.

Speaking on the project, Zohaib Khan, Project Manager said ““We, together with MGF, have a shared vision of innovation and sustainability, which we strive to implement from the outset. In turn, this enables us to provide pioneering and cost effective solutions. The collaboration between everyone involved with the project ran smoothly and we are pleased to have offered a value- added solution to our clients once again.”

Aarsleff Ground Engineering are a choice contractor for the design and delivery of ground engineering projects across the UK. With over 30 years of experience, we are experts in the delivery of operational excellence.

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.