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External vibrators used in construction of Spanish high-speed rail link (AVE)

Wacker Neuson ensures top quality concrete in the tunnel extension along the Málaga - Antequera - Granada rail link.

At 2,056 kilometers, the Spanish high-speed rail network is the most extensive in Europe with a further 1767 kilometers currently under construction. Wacker Neuson is among the companies involved in the construction of a tunnel measuring almost 800 meters along the line at Pena de los Enamorados near Antequera. 

On behalf of the Spanish State Ministry of Construction and the Spanish railway company ADIF, construction companies Acciona and Torrescámara are currently building a new tunnel for the high‑speed train. The unique feature of this tunnel is its open construction method. Two tunnel formwork carriages made by DOKA are in use along the length of the tunnel, each measuring 15 meters in length and equipped with external vibrators and frequency inverters made by Wacker Neuson. A total of 104 external vibrators and 16 frequency inverters are deployed along the inside of the tunnel. Their job is to ensure that the 75-centimeter thick tunnel wall and the later on visible concrete surface have been perfectly compacted.

"We made a conscious decision for Wacker Neuson external vibrators because we were won over by their superb quality", explains Pablo Sañudo, Site Manager at Torrescámara. "These external vibrators are ideal because they are light, easy to handle, quick to fix in position and offer excellent compaction results."

These attributes are confirmed by the team on site. No fewer than 40 men work with the Wacker Neuson external vibrators in three shifts.

Wacker Neuson external vibrators are distinguished by their high quality components, which in turn make them extremely reliable and very durable. Their stable-speed, high-power electric motors provide for excellent compaction performance in concrete, precisely what Pablo Sañudo requires on site. However he has also been impressed by the quality of the service and advice from his Spanish Wacker Neuson colleagues: "The customer service from Carlos Lopez and Alberto Villanueva at the Wacker Neuson sales office, Spain, is first class. Carlos Lopez and Alberto Villanueva are experts and always on hand to provide help and advice when needed."