Bank Erosion Protection | River Taff, UK

382m² of CC8^™ used to formalise an existing channel

Plan Your Project with Us

Background

In January 2020, works began on a channel lining project at an industrial estate in Abertillery in the Ebbw Fach valley of South Wales. The site was being redveloped into a new recycling centre for the area and required an existing channel to be formalised to provide effective water management.

Channel prior to installation

Existing concrete rip-rap line channel section

682m²

of CC8^™ Wide Rolls were installed

2.2m

Wide Rolls specified to reduce installation time

75%

time saved using CC vs traditional concrete

Solution

Concrete Canvas^® GCCM* (CC) was specified as a channel lining solution for a drainage channel which required formalising to provide an effective water management system on the site prior to works beginning on the recycling centre.

The channel lining works were carried out by Jim Davies Civil Engineering, who had prior experience of working with CC and therefore recommended the material for a rapid channel lining solution. An 8mm thick variant of CC (CC8^™) was specified in Wide Rolls measuring 2.2m wide to reduce installation time.

Channel excavated and reprofiled, CC Wide Rolls deployed from excavator longitudinally, disc cutter used to cut CC to length, galvanised pegs used to secure CC within anchor trenches

Design & Installation

Prior to install, water within the channel was pumped down stream
New channel was excavated
Anchor trenches close to the tree line were excavated by hand
CC Wide Rolls deployed longitudinally using a specialist spreader beam
Disc cutter used to cut to required length
Stainless steel screwed joints
Edges of material secured within anchor trenches
Hydrated using pumped water at the end of each shift

Autofed screw driver used to insert screws through overlapped CC8^™

Excavator used to backfill anchor trenches

Conclusion

A total of 682m² of CC8^™ were installed by a team of three in five days, despite the poor ground conditions and access restrictions on site caused by the tree line. The use of CC on this project provided significant time savings when compared to traditional concreting methods which would have taken around three weeks to install; a saving of over 75%.

Download Project