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Aarsleff Ground Engineering and Bam Construct Shakespeare School
Soil Nails and Piling for new primary school in Leeds

Leeds City has recently awarded BAM Construction Ltd North East the contract to construct a two-story new build primary school and associated external works at Shakespeare Primary School in Leeds. Leeds is a vibrant, extremely dynamic and successful City. The City’s population is growing rapidly, and naturally, this is reflected in an increasing demand for school places

BAM Construction Ltd awarded Aarsleff Ground Engineering the foundation works for this scheme, comprising Driven Steel Tube Piling, Drilling and Grouting of shallow mine working beneath the main school building, and Soil Nailing to the car park and nursery retaining walls.

Beginning on the 3rd August, Aarsleff has already drilled 109no vertical bores on a radial grid including casing under the school building with its Boart and Klemm 806 rigs. Aarsleff then mixed and injected OPC/PFA grout to the 4500m2 area ensuring that any surface instability due to the shallow workings, was eliminated.

Aarsleff’s second remit of work includes the design and installation of soil nails which will follow a top down construction with a soil nail spacing of 1.5mX1.5m. Prior to the main works, suitability tests of 4no positions will take place to confirm the ultimate bond stress used in the design.  To facilitate the car park’s retaining wall, Aarsleff will employ its Boart AJ18 rig to install 105no soil nails of 5.5m average length to the 205m2 vertical wall area. For the nursery retaining wall, Aarsleff will install 64no soil nails of approximately 5m in length to the 115m2 vertical wall area. Each of the R32-280 galvanised epoxy coated bars will be fitted with a head plate and face will be clad with a stone filled mesh basket using local stone to blend with the existing stonework of the area.  Acceptance testing of 2 nails randomly selected from each wall will be undertaken concurrently with the main works to confirm satisfactory performance at working load.

Aarsleff’s final remit of work includes the driven steel tube piling. Aarsleff will be utilising its Junttan PM20 rig to drive 411no thick walled steel tube piles of varying lengths between 3m and 14m. Aarsleff will also carry out dynamic proof load testing and vibration monitoring during the works.

Soil Nailing and Piling works are due to finish on the 13th October.

Managing Director Chris Primett said:

“Working on Shakespeare School will be another great project to add to our growing portfolio of educational builds and is a testimony to the company’s technical competence and expertise in delivering a multitude of ground engineering services on one site. To be awarded the Drilling and Grouting, Soil Nails and Piling works for this scheme is a huge acknowledgment in our package solutions and our ability to tailor our services to meet our client’s needs.”

Aarsleff Ground Engineering Manager Dave Evans said:

“For what we have already completed on site, this project has already had its challenges. The site has up to 10 vehicle movements at any one time from other associated contractors leading to the requirement of daily detailed planning meetings”.

Aarsleff is also currently undertaking a similar steel driven pile solution for BAM Construction on Bannerdale, a new build secondary school a mile south of Sheffield city centre.

The project is also featured on Ground Engineering Plus Website.

For more information about Aarsleff Ground Engineering or to send in your enquiry, call 01636 611140 and speak to a member of our expert team today, or drop us an email 

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