Runway Brussels Airport

Zaventem, Belgium

Property owner

Brussels Airport

Main contractor

Aswebo

Architect

Acoustic consultant

Structural engineer

Details

runway

Building type

Commercial

Intervention level

Special

One of the three runways at Brussels Airport was recently renewed. Part of the runway crosses an underground tunnel which is now untainted by large vibrations when aircraft take off thanks to the new CDM-FBT elements.

The inertia base with a width of 60m and a length of 16m, probably dating from the 70’s and already resting on isolation pads, was to be renovated as the long term stability of the existing pads could not be guaranteed.

To limit the timeframe during which the runway would be out of service, CDM suggested keeping the existing inertia base and only replacing the old isolation pads by means of an innovative method.
More than 2000 new, pre-compressed, CDM-FBT elements were slid under the inertia base through around 500 drill holes. These new elements now take up the load from the old pads so that a long term functioning of the inertia base can be guaranteed.

Precompression of CDM-FBT

Making of drill holes

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