A2GC

A Solution to Each Problem

Engineering studies

  • Conceptual, scoping, pre-feasibility and feasibility-level geomechanical studies
  • Geomechanical mine design for various mining methods
  • Geomechanical data review, consolidation and gap analysis
  • Geomechanical site characterisation
  • Empirical, analytical and numerical stability analyses of open pit and quarry walls
  • Empirical, analytical and numerical stability analyses of underground excavations and pillars
  • Advanced numerical analyses of a wide range of problems with inelastic continuum (FLAC3D) and discontinuum-based (3DEC) formulations
  • Design of large underground excavations
  • Ground support design for static and dynamic conditions, including optimisation with state-of-the-art explicit discontinuum-based BBM and DFN numerical simulations
  • Assessment and mitigation of geomechanical risk
  • Elaboration and management of geomechanical risk profiles
  • Drilling and blasting engineering, including design and implementation of:
    • Horizontal and vertical development blasts
    • Shaft-sinking blasts
    • Production blasts (on surface and underground)
    • Presplit and post-trim blasts
    • Smooth and cushion blasts
    • Trench blasts
    • Mass-blasts
    • Large-scale choked destress blasts
    • Targeted blasts for narrow ore zones in open pit mines
  • Elaboration of anisotropic site-specific blast-induced vibration attenuation curves in various materials (rock, soil, backfill)

Technical support

  • Mining in high stress and failing ground conditions
    • Mining in strong bursting ground
    • Mining in weak squeezing ground
  • Mining in failed ground
  • Instrumentation
  • Ground control practice reviews and audits
  • Ground control-related safety reviews
  • Ground control-related incident investigations
  • Ground fall investigations
  • Seismicity and rockburst reviews
  • Expert witness (for litigations and Court cases)
  • Training courses for engineering and production personnel (customised accordingly)
    • Geomechanics, ground control and ground support
    • Blasting engineering
    • Vibration monitoring and analysis
  • Technical coaching of site staff
  • Technical assistance to site personnel
  • Close technical support of site staff, including assuming site rotations
  • Technical drilling and blasting reviews and audits (on surface and underground)
  • Blast damage control in tunnel surfaces, and pit and stope walls
  • Blast-induced vibration surveillance and control

Research and development

Participation in field trails, steering committees and/or review boards for geomechanical and blasting-related research and development projects.