Hydroelectric power plants in Kempten

Resilient bedding of machine foundations and buildings

Getzner was responsible for implementing the vibration isolation solution during extensive renovation of the Keselstraße and Füssener Straße run-of-the-river power stations that face one another on the Iller in Kempten.

The challenges

New construction and renovation of two hydroelectric power stations directly adjacent to a planned residential development
Planning and implementation of the vibration protection measures in spite of difficult installation conditions
Significantly undercutting the limit values required for the neighbouring residential development
Vibration isolation while complying with more stringent emissions requirements
Reduction of the structure-borne noise from the power station machinery by the requirement amount

The Getzner solution

Getzner Werkstoffe implemented a full-surface bearing for the power station in the Keselstraße: the bottom plate on which the two power station machines stand is elastically mounted and minimises the vibration and acoustic transfer to the surrounding residential buildings. The side walls of the new power station building were also fully decoupled from their surroundings with Sylomer®, from the lower edge of the bottom plate right up to ground level.

Advantages for the customer

Effective protection against vibration
Planning, concept, implementation by Getzner
Complete decoupling of the foundation with Sylomer® guarantees the required sound and vibration protection

” With its elastic bearing of the new machine foundation, Getzner has made an essential contribution to maximum sound insulation.

Products used

Sylomer®

Elastomers with spring and damping characteristics

” The test measurements after completion of the project showed that all residential compliance thresholds were complied with. There is even a safety margin of error between the actual values and the specified requirements. This confirms that the measures for reducing vibrations and particularly structure-borne noise transfer have been extremely effective.