Design The following information is intended to give guidance
in the preliminary selection of the systems.
Ruthin Precast Concrete provides design advice and detailed
sit specific drawings on all contracts where the Company’s
revetment systems are to be used. In addition, contractors
will be provided with full working schedules and on-site advice.
Primary
Armour
Where a flexible concrete revetment is required the actual
design will depend upon the application, the nature of the
formation and environmental considerations. The areas to be
protected should be graded to the correct line and level,
and be free from obstructions. An adequate toe support will
be necessary and advice on selection suitable details should
be sought on a site specific basis. The Ankalok
interlocking units are hand laid directly onto a geotextile
membrane.
Underlayer
The design and specification of the underlayers is of fundamental
importance to the stability of the structure as a whole. The
need for a geotextile and natural filter layers will be determined
on a site specific basis. For example, in situations where
the passage of ground water is likely to cause leaching of
fine particles of bank material, us of a suitable geotextile
filter laid directly beneath the revetment is recommended.
Primary
Armour 
