the european xfel (www.xfel.eu/de) research facility currently under construction in hamburg is a unique research facility: from 2014 onwards highly intensive x-ray laser rays will be created here for research projects worldwide. 187 m³ subterraneous curtains made of lean concrete and betonite had to be removed under water during this construction project. up to 3.5 m³ of material was stripped per day using two falch units of 2,500 bar in tandem operation. the underwater unit and a separate air supply for the hyjet nozzle.
news