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Our Infra-Spezialtiefbau team is currently working in Conneforde, where we have been commissioned to carry out bored pile foundations for overhead line pylons. Up to eight inclined piles, with an inclination of up to 8°, are being installed at each pylon site. The diameters of the piles range from 1.0 metres to 1.5 metres! The challenges posed by this construction project include the inclined piles themselves, as well as the logistics and working in confined spaces. The logistics behind the project are one of the most demanding tasks, as the team often has to complete the foundations for one pylon site within a week and then move on to the next construction site.
With two drilling rigs, this can require up to four relocations per week, with each drilling rig needing to be moved using a heavy-haul lorry approximately 29 metres long along poorly maintained and narrow farm tracks. The site equipment is then transported separately by lorries. Depending on the diameter and depth of the piles to be drilled, this can involve up to 12 lorries per move.
For this contract, Infra-Spezialtiefbau is working closely with our Eiffage Infra-West team, as they are responsible not only for the bored pile work but also for the excavation pits, concrete foundation work, steel erection and groundwater control, including its subsequent treatment.
One of the biggest challenges is reconciling the preliminary work carried out by our client with the coordination of our subcontractors, as the work processes must run hand in hand here to keep the construction site running smoothly; yet it is only by working together that we can achieve great things and, in the truest sense of the word, ‘reach new heights’!
We at Eiffage Infra-Bau are delighted to be able to offer a one-stop service through our group of companies.
