Seismic Risk Management Practices

Contents

Introduction

Data Collection

1.      Data collection – geological

1.1.1          Structural model – basic

1.1.2          Structural model – advanced

1.2.1          Lithology domains – basic

1.2.2          Lithology domains – advanced

2.      Data collection – mining

2.1.1          Production blasting database – basic

2.1.2          Production blasting database – advanced

2.2.1          Development blasting database – basic

2.2.2          Development blasting database – advanced

2.3.1          Ore extraction database – basic

2.3.2          Ore extraction database – advanced

2.4.1          Stope geometry – basic

2.4.2          Stope geometry – advanced

2.5.1          Cave geometry – basic

2.5.2          Cave geometry – advanced

3.      Data collection – geotechnical

3.1.1          Rock properties – basic

3.1.2          Rock properties – advanced

3.2.1          Stress properties – basic

3.2.2          Stress properties – advanced

3.3.1          Deformation/damage monitoring – basic

3.3.2          Deformation/damage monitoring – advanced

3.4.1          Ground support capacity – basic

3.4.2          Ground support capacity – advanced

4.      Data collection – seismic

4.1.1          Seismic event location – basic

4.1.2          Seismic event location – advanced

4.2.1          Magnitude range – basic

4.2.2          Magnitude range – advanced

4.3.1          System status – basic

4.3.2          System status – advanced

4.4.1          QA/QC – basic

4.4.2          QA/QC – advanced

4.5.       Regional and national seismic network

4.5.1          Regional and national seismic network – basic

4.5.2          Regional and national seismic network – advanced

Seismic Response to Mining

5.      Seismic response to mining – numerical models

5.1.1          Comparative modelling – basic

5.1.2          Comparative modelling – advanced

5.2.1          Back analysis – basic

5.2.2          Back analysis – advanced

5.3.1          Forecast modelling – basic

5.3.2          Forecast modelling – advanced

6.      Seismic response to mining – seismic analysis

6.1.1          Short term seismic hazard assesment – basic

6.1.2          Short term seismic hazard assesment – advanced

6.2.1          Re-entry analysis – basic

6.2.2          Re-entry analysis – advanced

6.3.1          Medium/Long term hazard assessment – basic

6.3.2          Medium/long term hazard assessment – advanced

6.4.1          Medium/long term source characterisation – basic

6.4.2          Medium/Long term source characterisation – advanced

6.5.1          SGM interpolation – basic

6.5.2          SGM interpolation – advanced

7.      Measurement and observation trends for forensic analysis

7.1.1          Forensic analysis triggered by large events or rockbursts – basic

7.1.2          Forensic analysis triggered by large events or rockbursts– advanced

7.2.1          Periodic reporting of trends – basic

7.2.2          Periodic reporting of trends – advanced

8.      Understanding and quantifying seismic hazard

Control Measures

9.      Ground support

9.1.1          Ground support – design for dynamic load – basic practices

9.1.2          Ground support – design for dynamic load – advanced practices

9.2.1          Ground support – performance evaluation – basic practices

9.2.2          Ground support – performance evaluation – advanced practices

Further comments

10.         Exposure

10.1.1        Planned exclusion – basic

10.1.2       Planned exclusion – advanced

10.2.1       TARP exclusions – basic

10.2.2        TARP exclusions – advanced

10.3.1       Layout and timing – basic

10.3.2       Layout and timing – advanced

10.4.1       Remote equipment – basic

10.4.2       Remote equipment – advanced

10.5.1       Automated process – basic

10.5.2       Automated process – advanced

10.6.1       Communication and training – basic

10.6.2       Communication and training – advanced

11.         Mine design

11.1.1        Pillar design – basic

11.1.2        Pillar design – advanced

11.2.1        Excavation design – basic

11.2.2        Excavation design – advanced

11.3.1        Extraction rate – basic

11.3.2        Extraction rate – advanced

11.4.1        Extraction sequence – basic

11.4.2        Extraction sequence – advanced

11.5.1        De-stress slot – basic

11.5.2        De-stress slot – advanced

11.6.2        Mining method – basic

11.6.2        Mining method – advanced

12.         Conditioning rock mass

12.1.1        De-stress blasting – basic

12.1.2        De-stress blasting – advanced

12.2.1        Hydraulic fracturing – basic

12.2.2        Hydraulic fracturing – advanced

Seismic risk assessment

Risk Assessment

The individual formal subjective risk assessment

Formal subjective risk assessment employing expert opinion

Quantitative risk assessment

References

Recommended reading

File:SRMP Flowchart.jpeg Figure1: Seismic Risk Management Practices Flowchart