|Client:||Cambridgeshire County Council|
Built in the mid 19th century, Holme Primary School had developed stepped, tapering cracks to the masonry, which were visible both internally and externally. Investigations established that foundation movement had occurred, caused by the close proximity of trees to this part of the school. The foundations were of corbelled brick type supporting a 13.5" brick wall up to six courses above ground level, where they reduce to 9" for the remaining height of the structure. The foundations needed stabilising and brickwork on the front and right hand side walls required repair and reinforcement.
Atkins designed a repair scheme using Helifix Dixie micro-piles, to overcome the subsidence problems, and utilising the Helibeam System to both maximise the pile spacing and secure the damaged masonry.
The use of Dixie micro-piles enabled the school to remain fully functional during the works. With rotational installation there was minimal noise disruption and no vibrations. Using lightweight equipment, the piles were installed, loaded and the area reinstated in just seven days. Download the case study