Highwall Mining: Applicability, Design & Safety, 1st Edition (Hardback) book cover

Highwall Mining

Applicability, Design & Safety, 1st Edition

By John Loui Porathur, Pijush Pal Roy, Baotang Shen, Shivakumar Karekal

CRC Press

324 pages

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Hardback: 9781138046900
pub: 2017-06-29
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Description

This comprehensive technical book on highwall mining covers theory and practice coupled with practical examples and design aspects. It contains eight extensive chapters elaborating broad-spectrum functionalities of highwall mining and its operational aspects, covering world scenario, economic potential, methods of coal extraction, design methodology including empirical web pillar design, numerical modelling for stress analysis, safety factor for web pillars, panel and barrier design, small-and large-scale numerical modelling, multiple seam interaction and design, coal web pillar strength, equivalent width concept, laboratory testing, new web pillar strength formula, effect of weak bands in coal seam, slope stability, safety and ground monitoring, hazards and regulatory requirements, case examples, norms and guidelines for practice. It also summarizes the results of research carried out by the CSIR Central Institute of Mining and Fuel Research (CSIR-CIMFR), India and the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia on the subject.

The book will equip readers in understanding the complex, multiple seam scenarios for highwall mining, and its design for maximum coal recovery from any given site with better economics, which will aid the mining companies in extracting locked-up coal following the safety norms to avoid hazards and minimise instability issues. A large number of case studies is included to illustrate the application of numerical modelling for prior estimation and viability of highwall mining operations under varying geomining conditions.

The book will be of interest to professionals and academics in the field of mining engineering specifically, but will also interest civil, geomechanical and geological engineers as well as rock mechanics professionals.

Table of Contents

1 Highwall mining: world scenarios

1.1 Introduction

1.2 Operation and new developments

1.3 International status

2 Geological characterisation for highwall mining operations

2.1 Introduction

2.2 Framework for site characterisation

2.3 Domain block delineation for highwall mining

2.4 Determination of data uncertainty

2.5 Recommendation for identification of highwall mining blocks

3 Design formulations for web pillar and entry span

3.1 Introduction

3.2 Pillar strength formulae

3.3 Equivalent width concept

3.4 Comparison of pillar strength estimation approaches

3.5 Span stability

3.6 Application of numerical modelling tools

4 Indian case studies

4.1 Introduction

4.2 Site A

4.3 Site B

4.4 Site C

4.5 Site D

4.6 Performance analysis of highwall mining at OCP-II and MOCP

4.7 Conclusions

5 Structural mapping

5.1 Introduction

5.2 Framework for structural mapping and modelling

5.3 Digital mapping and analysis

5.4 Blast damage

5.5 Structure analysis

5.6 Structural modelling

5.7 Siromodel

5.8 Case study at a highwall mining site

5.9 Concluding remarks

6 Australian design guidelines and case studies

6.1 Introduction

6.2 Brief history of highwall mining in Australia

6.3 Scope of the chapter

6.4 Feasibility study for highwall mining

6.5 Site investigation requirements and methods

6.6 Span stability assessment

6.7 Layout design

6.8 Case study

6.9 Monitoring of highwall mining operations

6.10 Summary

7 Highwall mining hazards and mitigation

7.1 Introduction

7.2 Geotechnical hazards

7.3 Examples of highwall failures

7.4 Impact of nearby blasting on highwall entries and slopes

7.5 Backfilling methods of highwall mining entries

8 Design and operational guidelines

8.1 Introduction

8.2 Web pillar strength estimation

8.3 Estimation of load on web pillar

8.4 Determination of factor of safety

8.5 Multi-seam mining

8.6 Highwall stability

8.7 Highwall inspection and monitoring

8.8 Identification of geological and structure features

8.9 Entry stability

8.10 Sequence of multiple seam extraction

8.11 Seam gas

8.12 Plans and sections

8.13 Highwall mining equipment

8.14 Additional safety requirements

About the Authors

Dr. John Loui Porathur is a Principal Scientist at Regional Center for Rock Excavation and Rock Mechanics at Nagpur, India under CSIR-Central Institute of Mining & Fuel Research, Dhanbad, India. He obtained Bachelor of Technology (Hons.) and Ph.D. in Mining Engineering from Indian Institute of Technology, Kharagpur, India. Since 1997 he has been working as a scientist in CSIR-Central Institute of Mining and Fuel Research (CSIR-CIMFR). His major areas of research include rock mechanics, mining methods, numerical modelling, subsidence engineering, etc. He has published and presented over 65 research papers in various International and National scientific journals and conferences.

Dr. Pijush Pal Roy is the Senior-most Scientist and Head of Research Group of Rock Excavation Engineering Division of CSIR-Central Institute of Mining & Fuel Research, Dhanbad and Former Acting Director of CSIR-Central Mechanical Engineering Research Institute, Durgapur, India. Before joining to CSIR-CIMFR, he was in the teaching profession for nearly 5 years and since joining CSIR-CIMFR, obtained over 31 years of R&D experience. He is the author of 3 books in rock blasting (Oxford IBH Publishing Co. and CRC Press), 2 guidelines and 118 National and International Publications. His research areas include rock blasting technology, highwall mining, mathematical modelling and environmental impacts of blasting. He has worked in more than 320 mines and quarries, around 15 hydroelectric projects as part of sponsored and consultancy projects and many S&T Projects sponsored by the Government of India.

Dr. Baotang Shen is a Senior Principal Research Scientist and Group Leader for Mine Safety and Environment at CSIRO Energy. Dr. Shen obtained his first degree in mining engineering in 1985 in China. He obtained his Ph.D. in rock mechanics in Sweden in 1993, and then worked with Norwegian Geotechnical Institute (NGI) as a research fellow in 1994-95. Since 1995 he has been with CSIRO and focused on issues related to highwall mining geomechanics, mining engineering and mining environment. Dr. Shen is specialised in mining engineering, monitoring instrumentations, numerical modelling, backfill technologies and rock fracture mechanics. Since 2004, he has been leading CSIRO’s research team on mine subsidence control and mine remediation, and developed the non-cohesive backfill technology for old mine remediation. The team has completed several major projects funded by Australian Coal Association Research Program (ACARP) and BHP Billiton Illawarra Coal and Queensland State Government on subsidence control and remediation technologies for a number of mines in Australia. Dr. Shen is an influential expert in fracture mechanics modelling. He is also the leading author of the recently published book “Modelling Rock Fracturing Processes” (Springer).

Dr. Shivakumar Karekal (Associate Professor in Mining Engineering, University of Wollongong, Australia) has Bachelor and Master degrees in Mining Engineering (India), and PhD in Mining, Mineral and Materials from the University of Queensland. He has over 26 years of research experience worked at several research organizations such as National Institute of Rock Mechanics (India), Centre for Mining Technology and Equipment (CMTE), Australia, Division of Mining, Mineral and Materials, University of Queensland, CRC Mining and exploration and mining division of CSIRO. He was associated with world renowned research organizations like Norwegian Geotechnical Institute (NGI), Norway; National Institute of Advanced Industrial Science and Technology (AIST), Japan; Sustainable Mining Institute (SMI) and JKMRC, Australia. Shivakumar has executed several national and international projects and has patents in advanced cutting technology in USA, Germany, South Africa, and Australia, and has published several international journal and conference papers and many reports. His area of expertise includes advanced characterisation of rock, numerical modelling, fluid flow problems, rock cutting, acoustic emission and micro-seismicity, and geophysics and radar applications to rock mass fracture detection.

Subject Categories

BISAC Subject Codes/Headings:
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General
TEC009150
TECHNOLOGY & ENGINEERING / Civil / Soil & Rock