Groundforce has completed installing underground pumping stations for a new Center Parc resort in Ireland.
Using modular hydraulic props and braces, Groundforce has been working with civil engineering contractor Roadbridge to install underground pumping stations on the €233M (£206M) development in County Longford, Ireland.
The pumping stations have been installed across the 162ha site, with six of the precast concrete pumping stations installed in depths of up to 6m in challenging ground conditions.
Steel sheet piles were chosen to provide internal support for the excavations, which were up to 20m by 10m, but due to the high rock level, a toe-in was not possible.
Roadbridge approached Groundforce who proposed a hydraulic shoring system comprising of three levels of mega brace high load capacity modular hydraulic bracing system, with HSK80 modular struts to support the sheets.
According to Groundforce, this proved challenging as the pumping stations varied in size and shape and included some complex layout.
Groundforce said: “While bespoke temporary shoring could also have provided a solution, designing and fabricating steel for this job would have been painstakingly slow.
“The modular hydraulic bracing system is ideally suited for long excavations where large clear spans are required, plus they are quick and easy to install. This proved to be of significant benefit to the build programme, with frames installed and extracted in a matter of hours.”
Roadbridge construction manager Stephen Salvin added: “The Groundforce framing system and temporary works designs added great benefit to this element of the project. Roadbridge were able to use their own sheet piles and piling hammer but the speed of installation of the Groundforce frames was a great help”.
Roadbridge is the main civils contractor, while John Sisk has the main building contract. Around 750 construction jobs will be created during the two-year project, which is due for completion in summer 2019.
Once completed the new Center Parcs resort will have 466 lodges and 30 apartments, accommodating up to 2,500 guests and more than 100 indoor and outdoor activities.