UV drain relining ideal where access is difficult, say Lanes
Lanes engineers have used no dig ultraviolet lining technology to rehabilitate a highways drain along a rural road that had repeatedly flooded, causing major problems for road-users.
The project demonstrated the benefits of the ultraviolet (UV) relining technique, which can be more easily deployed in areas where access is difficult and where there is tree cover.
Lancashire Council commissioned Lanes Group to reline the surface water drain along the busy tree-lined road in Clayton-le-Woods, south of Preston. The clay pipe, 220m long and 225mm in diameter, had been penetrated in many places by tree roots, trapping silt and debris, resulting in serious localised flooding during and after periods of heavy rain.
Derek Campbell, Lancashire and Cumbria Area Development Manager for Lanes, the UK’s largest independent utilities, drainage and underground pipe repair specialist, said UV relining was clearly the best option.
He added: “There are trees along the run of the pipe. So it wasn’t possible to use the standards trenchless cure in place pipeline (CIPP) technique, which requires a scaffold tower and a crane to invert the liner into the pipe.
“With UV relining, the tower and the crane is not needed, because the liner is pulled through the pipe and then inflated with compressed air. An array of UV lights is then used to cure, or harden, the resin in the liner.
“If UV relining wasn’t available, the only option would be to excavate the pipe, which would have caused serious road disruption for several weeks, and would have cost vastly more than this trenchless reline solution did.”