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You are at :Home»BLOG»Aarsleff’s Centrum Pile System does double duty on Dutch photovoltaic project
A prior photovoltaic project in Holland.

Aarsleff’s Centrum Pile System does double duty on Dutch photovoltaic project

Jul 24 2022 BLOG Comments Off on Aarsleff’s Centrum Pile System does double duty on Dutch photovoltaic project 477 Views

 Aarsleff Ground Engineering Group, has successfully completed the installation of 4,468 precast piles for the bearing structure of a large photovoltaic project in Holland. The client, IB Vogt GmbH in Berlin, is an experienced and pronounced developer within the renewable energy segment with a firm focus on photovoltaic worldwide.

 Aarsleff has a long tradition delivering ground engineering solutions for renewable energy projects. In Germany alone, more than 5,000 wind turbine foundations stand secure on Centrum precast piles. For that reason, the client-supplier-fit is excellent, with both parties determined to contribute to the energy transition.

A deep foundation was necessary due to poor ground conditions.

 In this project, the client is realizing this innovative project in an unusual setting. The photovoltaic panels cover a very large, three-meter-deep water retention basin, placed on lattice beams, and then mounted on the pile head in a grid of six by 12 meters. A deep foundation is a necessity due to poor ground conditions. Being prefabricated, the Centrum precast piles enable this needed double function: The piles serve both as a mounting basis on a three-meter-high standing column, and as the deep foundation element. In comparison to in situ pile systems, this is a strong argument for the chosen pile system.

A M42 threaded sleeve is centrally positioned on the pile for quick assembly of the mounting beams.

 Before starting installation on site, some product development and additional soil investigations were carried out, due to the requirement for pile installation accuracy of +/- 5cm horizontally and +/- 3cm vertically. In the pile head, a M42 threaded sleeve, provided through PFEIFER Bautechnik, is centrally positioned for a quick assembly of the beam connection. The transition piece between pile head and beam allows the necessary tolerance. To be certain about pile drivability and consequently reaching the planned pile toe depths and securing the vertical tolerance, additional CPTs were executed through FUGRO.

 The team on site, consisting of the project manager Rainer Scharrel and his rig operators and banksmen, met all expectations for accuracy, quality, speed and health and safety standards. The two dispatched JUNTTAN rigs – a PMx22 with a SHK5 hammer and a PM25 with a HHK7 hammer – were ideally suited for the task.

 “Our experience with this project has been very positive, especially the very partner-like and professional cooperation with the client and his consultants,” said Peter Wardinghus, managing director at Aarsleff Grundbau GmbH. “The suitability of the pile system has received a strong confirmation and more opportunities to plan, design and deliver smart ground engineering solutions within the renewable energy segment are in sight.”

Republished from Marine Construction Magazine Issue II, 2022

Photovoltaic panels will cover a three-meter-deep water retention basin.
2022-07-24
MCMag
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