The Lausanne Intake and Outfall Project on Lake Geneva, Switzerland presented the challenge of successfully installing the intake pipeline in a water depth greater than 80m without the use of divers or ROV’s.
Working together, Royal HaskoningDHV and TSM-Perrottet AG, (sub-contracted to Alpiq), developed and implemented pre-installation solutions that optimised the design and installation technique for installing the pipelines at such depths.
The concrete collars required for stability were designed to minimise the weight and stresses within the pipeline during installation at these water depth and to reduce the drag forces during towing to within the capabilities of the existing plant working on the lake.
These innovative solutions and the close collaboration of the design and installation teams meant that the project was completed successfully in September 2018.
Speakers – David Watson (Chair of Outfalls Intakes and Landfalls Technical Panel) and Martin Berry (Royal HaskoningDHV)
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