Tamnamore Sub Station - Coalisland - May-Sept'07

A new Electricity Sub Station for a cross border Interconnector required piling in a rural location near Coalisland. Most of the structures were very light weight, however with tall, sender masts/towers overturning was a much larger issue. Larsen Foundations in conjunction with the contractor, Enterprise Power Services and engineer MWL Consulting came up with a solution using 219mm piles which minimised the requirement for site preparation, in boggy soil conditions, to a preinstalled stone platform. Access to the site was restricted by over hanging high voltage power cables. One side of the site was also hampered by more high voltage power cables. As a result we used our fleet of light, compact piling rigs ensuring that the height restriction issues were negated. To keep the job within time constraints we had up to three rigs on site at any given time.

  • 281 No 219mm bottom driven mini piles
  • Piles from 10-13m in length
  • Up to 300kn SWL
  • 12 Case Tests
  • 1 CapWap Analysis
  • Low weight/height rigs
  • Main contractor - Enterprise Power Services
  • Engineer - MWL Consulting
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