Case Studies

Abutment stresses damage mapping

Mapping abutment stress damage to inform operational controls

An anonymised technical case study demonstrating how site observations, model calibration and practical geotechnical judgement can support better mining decisions.

Problem

Stress-induced damage was observed around mining abutments and brows, creating potential impacts on production drilling, ground support demand and safe access. The mine needed practical interpretation of where damage was developing and how it related to the modelled stress environment.

Scope

JM Geomechanics reviewed damage mapping, underground observations and modelled stress conditions to compare observed behaviour with predicted stress concentrations. The work helped identify high-stress zones and translate them into practical hazard controls.

Technical approach

Map visible damage, fracturing, broken ground and support performance indicators.
Compare mapped damage with modelled stress and differential stress conditions.
Review brow and abutment areas where stress changes were likely to affect access and production activities.
Identify areas where high abutment stresses could create drilling, support or re-entry concerns.
Provide operational recommendations for exclusion, monitoring and ground control communication.

Outcome

Clearer definition of high-stress abutment areas and damage mechanisms.
Improved basis for no-entry or exclusion planning after firing and during extraction.
Support for production planning where hole closure or brow damage could occur.
Practical guidance for communicating geotechnical risk to operations teams.

Related services

Advanced 3D non-linear numerical modelling
Ground support design
Mine planning and design
Extraction sequence review and optimisation
Pillar design and stope stability assessment
Geotechnical audits, reviews and hazard management
Paste backfill analysis
Exposure analysis
Reticulation system design
Paste operational support

Other case studies

Pillar performance – confined pillars

Abutment stresses damage mapping

Calibration of seismic response to mining

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