Graf 230010 Instrucciones De Instalación Y Mantenimiento página 13

Drawing – lorry – loading 60 to:
surface layer
Additionaly required
black top finish to
national standards
e.g. United Kingdom 250 mm
black top layer
girder
filling
material
gravel 20/40
soil
80-100 mm grit (8/16)
granular subbase
Section open swale infiltration ditch:
max. 250 – 3740 mm
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www.graf.info
4. Installation
12 / 25
angle of slope 45°
road/
parking space
GRAF-Tex geotextile
filling material
infiltration Tunnel
2015-07