Mine Layout & Controlled Mining Integration

Mine Layout Design Audit for Rockmass Stability

Objective:
Audit for rockmass stability of the planned mine layout to quantify seismic potential and the spatial distribution of seismic hazard; thus facilitating layout optimisation

Audit:
Methodology & Procedures developed by ISS International Ltd. - ISO9001 certified

Applications:

• long term planning (new designs)
• medium term planning (2-year, 5-year)
• planned layouts in the vicinity of hazardous geological structures
  

Calibrate by Integration
ISSM - Directly incorporates historic seismic data - spatial hazard assessment

Audit Benefits:

• Improved control of seismic hazard
• Increased confidence in design decisions
• Comprehensive design document

Audit Deliverables:

• Mine-Wide Calibrated Models... for further use by the mine
• Empirical Relationships... integrated "rockmass"/structures response
• Quantitive Seismic Hazard Assesment
• Spatial Assesment of Seismic Hazard... Short term analysis
• Interpretation & Layout Recommendations

Integration for Controlled Mining

Integration for Controlled Mining:
Methodology & Procedures developed by ISS International Ltd. - ISO9001 certified

Objective:
provide logistical support for controlled mining sites
assist production personnel to make short term
changes to the mining operations (controlled mining)

Stability Assessment Incorporates:

• Current mine layout
• Rockmass response
• Hazardous geological structures response
• Current seismic data

Applications:
Short term planning (weekly):

• control mining rate
• control panel sequence
• control resource deployment (risk management)
  

Integration:
ISSM - Directly incorporates measured seismic strain and equilibrates modelled stress accordingly

Mine Control Parameters Tested:
- Weekly face advance
- Mine layout

Integration toolbox:

ISSM; Jdi; iv4Di; 4Di; Faultism; VMAP; xmts; Hazard; IDR

Integration for Controlled Mining Deliverables:

Controlled Mining Site Calibrated Model... for further use by the mine
Empirical Relationship... weekly update of the detailed site response

Seismic Hazard Assesment:

• temporal: integrated with time history analysis
• spatial: structures and abutments
• Interpretation & Recommendations

This page last updated: January 2007