Rock Mass Response to Mining Activities: Inferring Large-Scale Rock Mass Failure, 1st Edition (Hardback) book cover

Rock Mass Response to Mining Activities

Inferring Large-Scale Rock Mass Failure, 1st Edition

By Tadeusz Szwedzicki

CRC Press

180 pages

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Hardback: 9781138082922
pub: 2018-06-21
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pub: 2018-06-14
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Mining activities may result in rock mass deterioration and instability that may lead to failure both in underground and open pit mines. Such deterioration represents a safety risk and may result in substantial financial losses. Rock mass response may lead to ground subsidence, fall of ground/caving, inundation, pillar collapse, seismic activities and slope and tailings dam instability. Each response is preceded by warning signs and precursors, which are identified in this book, with a view to providing guidelines for prediction and amelioration of damage to mining structures. Furthermore, case studies of both large scale ground deterioration leading to collapse and geotechnical mine disasters are presented. Identifying risks and monitoring geotechnical precursors and warning signs allows for safe and productive mining.

Table of Contents

1 Introduction

2 Factors affecting rock mass response to mining

2.1 Geotechnical factors affecting rock mass response

2.2 Mining factors affecting rock mass response

2.3 Effect of mining scale on response of rock mass

3 Case studies of rock mass response to underground mining

3.1 Case studies of surface crown pillar collapse

3.2 Case studies of rockbursts and outbursts

3.3 Case studies of uncontrolled caving and pillar collapses

3.4 Case studies of damage to underground mining infrastructure

4 Case studies of rock mass response to surface mining

4.1 Open pit slope failure due to underground mining

4.2 Slope failure along geotechnical structures

4.3 Collapse of a highwall in an open pit

5 Case studies of inundations

5.1 Water inrush into a colliery

5.2 Tailings inrush into an underground mine

5.3 Backfill liquefaction and inrush into a mine

5.4 Mud inrush resulting from collapse of a crown pillar

5.5 Instability of waste rock tip

5.6 Instability of tailings dam

5.7 Progressive failure of coal refuse dam

5.8 Failure of tailings dams triggered by earthquakes

6 Effect of discontinuities on the initiation of failure process

6.1 Modes of failure of rock samples

6.2 Effect of discontinuities on strength of rock samples

7 Behaviour of rock mass prior to failure

7.1 Pre-failure warning signs

7.2 Sequence of precursors to rock mass failure

7.3 Geotechnical risk management

7.4 Monitoring of precursory behaviour

8 Rock mass behaviour during failure

8.1 Case studies on onset of failure

8.2 Case studies on duration of failure

8.3 Progressive damage to excavations under high mininginduced stress

9 Post-failure rock mass behaviour

9.1 Case studies of post-failure behaviour

9.2 The effect of mining geometry on post-failure behaviour

10 Modes of failure of rock and rock mass

10.1 Modes of failure at a sample scale

10.2 Mode of failure at a local scale

10.3 Mode of failure at a mine scale

11 Behaviour of fragmented ore

11.1 Ore flow – a case study from a block caving mine

11.2 Behaviour of fragmented ore – a case study from a sublevel caving mine

11.3 Analysis of a diameter of a draw zone from two case studies of caving mines

11.4 Behaviour of fragmented ore in orepasses

12 Mitigation of rock mass response through geotechnical quality assurance

12.1 Quality in ground control

12.2 Quality assessment

12.3 Quality assurance in ground control management system

12.4 Quality assurance in geotechnical planning and design

12.5 Quality assurance in ground control activities

12.6 Quality assurance in geotechnical inspection and monitoring

About the Author

Dr Tadeusz Szwedzicki is an internationally recognised expert in geomechanics of underground mining methods. He has over 40 years of mining experience working in mining production, research and development, and consulting. His experience has been gained working for some of the world's largest mining companies like PT Freeport (Indonesia), ZCCM (Zambia), Anglo American Corp (Republic of South Africa), and WMC and BHP Billiton (Australia). He had academic positions at Western Australian School of Mines, and University of Zimbabwe. His experience also includes government positions at the Northern Territory department of Mines and Energy where he was appointed the Government Mining Engineer and the Government of Papua New Guinea as Mineral Resources Advisor. He is a recipient of the Silver Medal awarded by the Institution of Mining and Metallurgy, London, and a recipient of Fulbright scholarship, USA. He has authored over 70 papers including in the International Journal of Rock Mechanics, Transactions of the Institute of Mining and Metallurgy, and proceedings of international conferences. He is an independent consultant specializing in geomechanics of mining methods.

About the Series

Geomechanics Research

The Geomechanics Research Series was set up in the early 1990s, and focused on geomechanics not only from a geotechnical engineering point of view but also emphasized geosciences/geophysics theory and applications. Volumes published thus far have covered the topics Fractals in Rock Mechanics, True Triaxial Testing of Rocks, Experimental Rock Mechanics, and Mechanical Behaviour of Rocks under High Pressure Conditions. Now re-launched under the title Geomechanics Research, we would be delighted to consider new book proposals for publishing in the series, please contact the series editor for further information.

The objective of this series is to provide knowledge on geomechanics to help engineers, researchers and students including beginners in the field with their actual works. Each book of the series provides knowledge from the fundamentals to the cutting edge on a specific aspect of geomechanics by explaining essential results that an excellent researcher obtained throughout his/her career. Although some of the results may already have been published in high level academic journals, the author can better and more comprehensively explain the research to the readers in book form than in papers published in the journals. The compilation of the many essential results in the book offers the reader a panoramic view at a glance as to how to develop research in the field, and furthermore enables the audience to see far ahead into the future of the field. 

This series covers the field of geomechanical engineering related to metal and coal mining, petroleum exploitation in conventional and unconventional reservoirs, geothermal energy extraction, and civil engineering for dam foundations, slopes, underground facilities such as powerhouses, tunnels, high level radioactive nuclear disposal and others. It also covers the field of geosciences related to seismology, volcanology, geology, tectonophysics among other areas.

Joseph Labuz, Professor, Civil, Environmental, and Geo- Engineering
Civil, Environmental, and Geo- Engineering, University of Minnesota, Minneapolis, USA

Douglas Schmitt, Professor of Geophysics and Physics
Canada Research Chair in Rock Physics, Department of Physics, University of Alberta, Canada

Mining engineers, petroleum engineers, geothermal engineers, civil engineers, engineering geologists, seismologists, volcanologists and tectonophysicists.

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