The project extension of the airport Leipzig – Halle has already started and is on track.
The ‘North’ runway is being extended to the east, and ten years after the construction of the two ’taxiway’ - bridges, the third one is now being executed.
It will be finished in 2009 and will reduce drastically the taxiway between the ‘North’ and ‘South’ runways.
|Fig. 1 Halle - Leipzig airport aerial view||Fig. 2 Cold formed sheet pile PAL 3260 for pier on axis 20|
This 191 m long and 63 m wide bridge spans over the highway BAB A 14, the ICE high speed train tracks and a local route.
The construction of the nine bridge piers between the ICE train tracks and the highway started in October 2008. Vertical loads of up to 7500 kN will be transmitted to the concrete foundations, which will be executed within rectangular temporary or permanent excavation pit.
|Fig. 3 Excavation pit pier axis 20|
Cofferdams for pillars 10, 30, 50 and 90 use hot rolled sheet piles GU 7-600 as retaining elements, while axes 20, 30, 40 and 60 – 80 will be founded within a permanent retaining wall built with PAL3260 cold formed sheet piles.
The sheet piles have been driven with an excavator mounted vibratory hammer into a sandy soil.
|Fig. 4 Cofferdam on pier axis 20 using PAL 3260|
Flughafen Leipzig / Halle GmbH, Leipzig
PST Grundbau Berlin GmbH
Steel sheet piles
GU 7-600, S 240 GP / S 355 GP; 6.60 - 8.00 m; 166 t
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PAL 3260, S 235 JRC; 4.80 - 5.70 m; 198 t