THE FIRST phase of the Crowhurst rail embankment stabilisation has been completed.
Managed by Railtrack Southern Zone Construction Alliance, the works were carried out by a joint venture of Nuttall Hynes and Ritchies.
The project required 206, 450mm diameter auger bored piles, put down to a maximum of 15m using two of Ritchies' Atlas Copco A65 rigs with continuous flight solid stem augers.
Steel tubular reinforcement was installed in each bore using a crawler crane before the column was grouted up.
Capping beams were built on top of the piles with cross rail tie bars installed by thrust boring between the pile caps on either side of the embankment. Drains were also placed in upward inclined drilled holes.