Aarsleff Ground Engineering has been appointed by Bam Construction to undertake geotechnical work for a new primary school in Leeds.
Under the deal, Aarsleff will install drive steel tube piles, carry out drilling and grouting of shallow mine working and secure two slopes with soil nailing.
The contractor started work last month on drilling more than 100 vertical bores on a radial grid below the building footprint to allow an OPC/PFA grout to be injected to fill any voids below.
Test nails are currently being installedto check the ultimate bond stress ahead of the main soil nailing work which will involve installation of 170 nails measuring 5m or 5.5m in length.
The piling element of the contract involves driving of more than 400 thick walled steel tube piles to depths of between 3m and 14m
Work on site is expected to be completed in mid-October.