Mining and Resources

Marandoo Dewatering Pipeline

Rio Tinto Iron Ore

This project comprised the installation and commissioning of a dewatering pipeline system at the Marandoo Mine Site.

EWebsite Project Photo Marandoo Dewatering

Fast Facts

Location: Marandoo Mine Site

Start: May 2011

Peak Workforce: 100

Completion: November 2012

 

SCOPE

Ertech’s contract for the installation and commission of the Marandoo Dewatering Pipeline included:

  • Dewatering bore field – includes 27 bore pumps, risers, headworks and earthworks and pads
  • Dewatering bore field pipeline – includes installation of 9,580 DN1000 MSCL manifold pipeline and the associated construction including trenching, bedding, backfill and ancillary civil works
  • Transfer pump station and tank – includes design and construction of 2.5ML transfer tank and the associated mechanical works
  • Construction of earthworks and concrete supporting infrastructure
  • Transfer pipe line - includes installation of 23,580m DN1000 MSCL pipeline and the associated construction - trenching, bedding, backfill and ancillary civil works including tunnelling beneath rail and road crossings
  • Booster pump station – installation of pumps, valves and pipe work and the associated construction including earthworks and concrete supporting infrastructure
  • Southern Fortescue bore field – installation of headworks for new bore, modification of existing bore headworks, removal and reinstatement of existing pumps

INNOVATIONS DELIVERED

  • Ertech designed and manufactured a moving sand box to place bedding material in the trench in preparation for pipe laying.

KEY POINTS OF INTEREST

  • Construction occurred around Heritage/protected areas. Clear communication and management plans were required to ensure that these areas remained protected.
  • As a portion of the project was located within the Karajini National Park, Ertech were working in a restricted area and needed to ensure that clearing was minimised during pipeline installation.