Hope Downs 1 Mine

Project Overview

Fortec successfully completed ground improvement works at the Hope Downs 1 Mine, supporting the development of new tunnel infrastructure for our valued client.

The scope included comprehensive drilling and grouting operations to improve ground stability and enable the safe, efficient delivery of subsequent tunnel foundation.

Fortec assisted Client and Consultants to develop, test, implement and ensure compliance of Specialised project grout mix design that complied with specific site requirements.

Fast Facts

  • CLIENTBMD
  • LOCATIONHope Downs 1 Mine, Pilbara, WA
  • YEAR OF COMPLETION2025

Scope of Works

  • 809 drilled and grouted holes
  • 8,950 linear meters of drilling
  • 136,800 Liters of grout placed
  • QA compliance and Testing
  • Multiple crews

Key Points of Interest

  • Delivery of ground improvement works for 6 tunnels in 5 months
  • Coordination with multiple stakeholders to maintain safe work fronts
  • High-volume drilling and grouting works were completed under demanding program conditions, with all activities finalised ahead of the scheduled deadline
  • Integral involvement to develop grout mix and installation procedure
  • Works safely completed in an extremely remote work location
  • Fortec provided multiple drilling and grouting crews

Challenges and Outcomes

  • Challenge: Variable ground conditions requiring adaptive drilling techniques. Post grout and grout advance systems adopted onsite to suit ground encountered
  • Outcome: Optimisation of drilling methodology to maintain productivity and quality
  • Challenge: Restricted access within tunnel development area
  • Outcome: Sequenced drilling and grouting to ensure continuous workflow without impacting adjacent operations
  • Challenge: Maintaining grout quality and volume consistency
  • Outcome: Robust QA/QC systems implemented, resulting in consistent delivery of the project