198 Atlas Copco Elemex piles successfully stabilise Carlisle to Settle railway landslip.

Atlas Copco’s Elemex solution was purchased by Van Elle to repair the Carlisle to Settle 500,000t railway landslip. All the piles were successfully drilled and completed by the end of January for the line replacement work and re-opening in March.

When Van Elle were chosen by Story Contracting (the main site contractor) to deliver and install the piling work on the Network Rail site at Eden Brow, discussions on the optimal solution for the unstable ground
concluded that the Elemex casing advancement system was the best piling product for the job.

Elemex large diameter system

The Elemex system’s extended ring bit redirects the air flow across the channelled bit face to ensure the air does not escape to the surrounding ground,
an important consideration to help reduce vibration when working in unstable ground. After the initial test piles were drilled the data was analysed and the design for the final piles was agreed.

The design consisted of two rows of high-strength piles totalling 198. The front row were in compression and were installed to 20m depth whilst the rear row were in tension and were installed to 18m depth.

Atlas Copco Ltd

Geotechnical drilling tools