Case Studies

Calibration of seismic response to mining

Calibrating seismic response to forecast rock mass damage

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

Problem

A mining operation required a better understanding of how the rock mass was responding to extraction, stress redistribution and seismic activity. The objective was to use modelling and observed underground performance to identify areas of increased geotechnical hazard and improve forward planning.

Scope

JM Geomechanics assessed rock mass response using numerical modelling and calibration against available underground observations, seismic response and damage mapping. The work focused on block size, extraction sequence, pillar dimensions and mitigation measures for stress-related hazards.

Technical approach

Develop and review model inputs for rock mass behaviour and mining sequence.
Assess numerical outputs including stress, deformation, strain, yielding and damage-related indicators.
Correlate modelled results with observed underground damage and seismic response.
Develop preliminary stress hazard thresholds and identify areas where future rock mass response required controls.
Translate modelling outcomes into practical design and operational recommendations.

Outcome

Improved understanding of stress-driven damage mechanisms and likely hazard locations.
Support for extraction sequence, block dimension and pillar design decisions.
Better ability to forecast future rock mass response and identify areas requiring exclusion, monitoring or ground support review.
A practical calibration framework that can be updated as more observations become available.

Related services

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

Other case studies

Pillar performance – confined pillars

Abutment stresses damage mapping

Calibration of seismic response to mining

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