Guidelines for Evaluating Water in Pit Slope Stability (Hardcover)

Introduction
John Read, Geoff Beale, Marc Ruest and Martyn Robotham
1 Scope of LOP project hydrogeological studies
2 General impact of water on mining
3 Cost of managing water in slope stability
4 Goals of managing water in slope stability
5 General planning for mine water management

1 Framework: assessing water in slope stability
Geoff Beale, Mike Price and John Waterhouse
1.1 Fundamental parameters
1.2 The hydrogeological model
1.3 Managing water in open pit mines

2 Site characterisation
Greg Doubek, Ashley Creighton, Mike Price and Mark Hawley
2.1 Planning field programs
2.2 Implementing field programs
2.3 Presentation, analysis and storage of data

3 Preparing a conceptual hydrogeological model
Geoff Beale, Pete Milmo, Mark Raynor, Mike Price and Frederic Donze
3.1 Introduction
3.2 Components of the conceptual model
3.3 Research outcomes from Diavik
3.4 Discrete Fracture Network (DFN) modelling
3.5 Summary of case studies
3.6 Factors contributing to a slope-scale conceptual model
3.7 Conclusions

4 Numerical Model
Loren Lorig, Jeremy Dowling, Geoff Beale, Michael Royle
4.1 Planning a numerical model
4.2 Development of numerical groundwater flow models
4.3 Use of pore pressures in numerical stability analyses

5 Implementation of slope depressurisation systems
Geoff Beale, John De Souza, Rod Smith, Bob St Louis
5.1 Planning slope depressurisation systems
5.2 Implementation of a groundwater control program
5.3 Control of surface water

6 Monitoring and design reconciliation
Chris Lomberg, Ian Ream, Rory O’Rourke and John Read
6.1 Monitoring
6.2 Performance assessment
6.3 Water risk management

Appendix 1 Hydrogeological background to pit slope depressurisation
1 Darcy's law
2 Head and pressure
3 Darcy's law in field situations
4 Flow in three dimensions

Appendix 2 Guidelines for field data collection and interpretation
1 Summary of drilling methods commonly used in mine hydrogeology investigations
2 Standardised hydrogeological logging form for use with RC drilling
3 Interpretation of data collected while RC drilling
4 Guidelines for drill-stem injection tests
5 Guidelines for running and interpreting hydraulic tests
6 Guidelines for the installation of grouted-in vibrating wire piezometer strings
7 Westbay multilevel system

Appendix 3 Case study: Diavik North-west wall
1 Background
2 Hydrograph analysis
3 DFN modelling

Appendix 4 Case studies: Escondida East wall; Chuquicamata; Radomiro Tomic; Antamina West wall; Jwaneng; Cowal; Whaleback South wall; La Quinua (Yanacocha)
1 Escondida East Wall
2 Chuquicamata
3 Radomiro Tomic
4 Antamina West wall
5 Jwaneng Diamond Mine South-east Wall
6 Cowal Gold Mine (CGM)
7 Whaleback South wall
8 La Quinua, Peru

Appendix 5 Case studies for numerical modelling
Case Study 1: Numerical modelling of the Northwest wall of the Diavik A154 pit
Case Study 2: Numerical modelling of the marl sequence at the Cobre Las Cruces mine, Andalucia, Spain

Appendix 6 The lattice formulation and the Slope Model code
1 The lattice formulation
2 Features of the Lattice Approach
3 Example application
4 Validation of Slope Model using experimental data from Coaraze test site, France

Appendix 7 Lessons learnt and basic guidelines to monitoring for general dewatering
1 Introduction
2 Water level monitoring
3 Summary and conclusions