Geotechnical Design Expertise

• Assess rock mass quality through drilling supervision, logging and mapping

Rock Mass Classifications

• Q-System applied at Impala Platinum
• Q-System Presentation – Bushveld Conference – Nov’ 2000

Design and locate underground accesses

• Identify failure modes through site investigation
• Review of proposed mining methods for rock mass stability
• Conduct numerical analysis to determine excessive unacceptable ground movement

Ground Support Design

• Static Ground Support Designs – Ground Support Standards
• Dynamic Ground Support Designs – Ground Support Standards

Opencut Mine Design

• Optimise open-cut slope angles using geotechnical information
• Assess and interpret structural geological data

Rock Reinforcement

• Ground Support Design
• Shear Loading 30 year history – August 2003
• Rock Reinforcement Shear Behaviour (2005)
• Laboratory Facility for testing tendon shear (2005)

Surface Support

• Shotcrete Mix Designs

Available Geotechnical Software

• SURPAC 6.2 (Geological Block Modeling, Mine Design, Drilling And Blasting Modules)
• TRACE (JMTS), JDi – Seismic Analysis Software
• MAP3D
• ELFEN Code – finite Element Analysis
• Rocscience: DIPS (Vers. 3.00), SLIDE, PHASE2 (Vers 7.0), SWEDGE
• TURBOCAD
• MICROSOFT PROJECT 2007