At the beginning of August a full container of nonwovens manufactured by Geo&Tex 2000 has been shipped with destination Wuhan – China.
GEO PP AG is going to be tested by the chines department for High Speed Railways dedicated to passanger transport.
In order to comply with new infrastructures demand, last autumn the Chinese government has approved a quite ambitious project regarding the building within year 2010 of 17.000 km of new railways , included 7000 km of high speed railways, especially designed for transport of passengers, achieving the commercial speed of 250 km/h ; some 5457 km will be able to support a speed over 300 km/h .-
Within such a design, by next 2010 the double track Wuhan – Guangzhou will be inaugurated : it means 980 km of railway line in the southern east of China .
From September to the end 2007 a trial railway of 2 x 10 km will be performed.
Most part of railways will be executed using the ballastless track system, which is patented by a European company.
The most important function of geotextile is to reduce as much as possible the interaction effects between platform and foundation underneath, preventing the deterioration of slabs on the contact surface.
The nonwoven geotextile has been choosen in order to allow also the drainage on sides of leakages coming from concrete cracking, so that to prevent any accelerated degradation of structure as consequence of overload by dynamic charges.
The ballastless structure has been already successfully adopted in different Countries in Europe ; i.e. in the Netherlands – between 2003 and 2005 – was built HSL Zuid linking Amsterdam to Brussels.
A good reference for the Chinese authority about for GEO PP AG : in Netherlands the geotextile was installed as flexible interlayer, between platform and the foundation below.
The sequence of construction phases consists in laying down the geotextile just on top of foundations, in positioning rails and sleepers, followed by slab casting .
The dutch pool of Companies responsible for project execution has built 163 km of railway, installing some 110 km of GEO PP AG nonwoven geotextile.