Considerate Constructors Scheme
BEST PRACTICE HUB

Ground Nail Installation Beam

Worker safety should be at the forefront of construction operations. Large scale sites often involve strenuous work and efforts should be made to minimise the risk of injury.

See the examples below for how the team at Hinkley Point C addressed this:

  • The project required more than 110,000m of ground nails to stabilise earthworks.
  • Collaborators from the HPC Enabling Team and Kier BAM developed a completely new way of installing the steel wall reinforcements in full-length, single rods by developing a mechanical ground nail installation beam.
  • The installation beam eliminates manual handling and working at height.
  • Additionally, operatives don’t have to cut the bars that are used to stabilise slopes into shorter lengths, which can lead to weaknesses at the joints.
  • While traditional installation involves coupling steel rods into 14m lengths as they are fed into boreholes, the team’s new mechanical Ground Nail Installation Beam supports the full length of the rods.
  • This means that the rods can be installed without the need to couple the bars together, eliminating manual handling.

This initiative has been shortlisted for the 2017 Ground Engineering Awards in the innovation category for the great strides it makes in site safety and project efficiency.

Footer Reference

Monitor report. NNB GenCo. Somerset. June 2017.


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