Project Detail
AWA were contracted to complete the structural engineering and drainage design. The project presented numerous engineering challenges due to the site’s unique characteristics:
- Sloping Ground: The new building was constructed on two levels to accommodate the sloping ground. AWA had to balance the position of the retaining walls to ensure they did not need mass excavation, ensuring minimal waste to landfill.
- Foundation Issues: The site, previously a clay quarry, required significant foundation work. To avoid the high costs and complexity of piling, AWA opted for vibro improvement techniques to enhance the ground and support traditional pad foundations.
- Drainage System Integration: The expansion of the building increased the load on the existing drainage system. With the larger building footprint, storm water drainage required meticulous planning to handle the increased surface area.
The addition of more toilets, alongside the new swimming pool, required a thorough evaluation of the site’s overall drainage capacity. The pool’s drainage needed special consideration due to the chlorine content, necessitating a backwash storage tank to store and gradually release treated water. AWA had to encompass calculations of the whole site, even though they were doubling the amount of toilets and the surface area, when assessing it against the whole site, it was not a great deal more.
The successful completion of the Hedley Wood project was a result of the collaborative effort. After 12 months the facility was ready on time for summer 2023.