Edge drainage
Water in soil embankments and cuttings increases pore pressure and reduces the soil’s strength which can have disastrous effects on the structure as a whole. Enka-Tex or Enkadrain Findrain will effectively protect the structure from damage caused by the presence of moisture/pore water, thereby greatly increasing the life of the road, as well as reducing maintenance costs.
Effective drainage at the edge of the trafficked platform and at the top and bottom of slopes and structures is essential in ensuring long-term stability.
The conventional solution with French drains involves significant quantities of selected granular material of various gradings to allow the passage of water but prevent the granular fill from silting up, reducing its drainage capacity. Enka-Tex can alternatively be used as a filter layer around a French drain or pipe drain to prevent the siltation of the drain.
Alternatively for a complete solution Enkadrain Findrain, consisting of a composite drainage core, filter layer and perforated pipe, acts as a vertical interceptor of groundwater flows and as a transporter of this water horizontally to outlets. It is typically nine times more effective than conventional granular fills, i.e. French drains.
Enkadrain Findrain provides long-life drainage of sub-surface water and/or run-off from grassed areas. In road construction, Enkadrain Findrain is used to collect water from embankments, cuttings, slopes, verges and road formations. In the latter, Enkadrain Findrain removes sub-surface water quickly, which is of great benefit in maintaining the formation of the subbase and retaining its bearing capacity.
Vertical interception of groundwater flows by Enkadrain Findrain. Enkadrain Findrain includes a filter and drainage core and eliminates the need for granular fill.
Enka-Tex is used as a filter for French drains, reducing the need for granular fill and preventing the backfill from silting up.
Functions:
- Drainage with use of prefabricated screens
- Filtration
- Separation
- Improving slope stability
Relevant products:
- Enka®-Tex wovens
- Enka®-Tex nonwovens
- Enkadrain® Findrain
