Fire-resistant sliding doors for Rottemer tunnel

An important part of the A16 Rotterdam project is the construction of the 2,235-meter-long Rottemer Tunnel. The construction, when completed half sunken in the Lage Bergse Bos, will be fitted with a middle tunnel channel that will enable users to leave the tunnel quickly and safely in the event of an emergency. Keers from Mijdrecht develops, delivers and assembles the total of 46 fire-resistant doors that give access to this middle tunnel channel. 

With some 60 years of experience in baggage, Keers is a specialist in the field of tunnel doors for road, rail and metro tunnels, fire and burglar-resistant doors, steel windows, doors and facades. Products delivered entirely according to customer specifications. Whether or not fitted with various extras such as guides, sound barriers and anti-panic bars. Therefore Keers always offers an optimal door solution which excels in functionality, security and ease of maintenance. This also applies to the green, fire-resistant doors the company supplies in Rotterdam. "Although the door concept we are using here has been used in other projects before, it has been completely modified and further improved especially for this application," says director/owner Jaap Biesheuvel. "This creates a 100 percent safe and also maintenance-friendly solution."

Special carriage

One of the technical gadgets used by Keers Special Doors in the Rottemer Tunnel involves a special carriage from which a number of escape doors in the tunnel will be fitted. "In some places at the transition between tunnel and escape passage there is a space at floor level," Biesheuvel explains. "To prevent users from getting their feet stuck or tripping in this while exiting the tunnel, we equip the sliding doors with a special carriage. The moment the doors open, this carriage moves along with the door at floor level. This allows everyone, when necessary, to exit the tunnel quickly, without problems and, above all, safely."

Innovative partner

When it comes to steel, fire-resistant escape doors, Keers is a true pioneer. The company developed the first fire-resistant escape doors together with the Department of Public Works in the 1980s. "In response to a fire in the Velser Tunnel, the government at the time drew up a specification that all fire-resistant doors in tunnels had to meet from now on," says Biesheuvel. "Parallel to a further tightening and expansion of these requirements, we have continuously developed the escape doors product ever since. As a result, we have delivered more than 1,000 tunnel doors for clients at home and abroad in recent years."