Ground Engineering
Principles and Practices for Underground Coal Mining
Samenvatting
This book teaches readers ground engineering principles and related mining and risk management practices associated with underground coal mining. It establishes the basic elements of risk management and the fundamental principles of ground behaviour and then applies these to the essential building blocks of any underground coal mining system, comprising excavations, pillars, and interactions between workings.
Readers will also learn about types of ground support and reinforcement systems and their operating mechanisms. These elements provide the platform whereby the principles can be applied to mining practice and risk management, directed primarily to bord and pillar mining, pillar extraction, longwall mining, sub-surface and surface subsidence, and operational hazards.
The text concludes by presenting the framework of risk-based ground control management systems for achieving safe workplaces and efficient mining operations. In addition, a comprehensive reference list provides additional sources of information on the subject. Throughout, a large variety of examples show good and bad mining situations in order to demonstrate the application, or absence, of the established principles in practice.
Written by an expert in underground coal mining and risk management, this book will help students and practitioners gain a deep understanding of the basic principles behind designing and conducting mining operations that are safe, efficient, and economically viable.
-Provides a comprehensive coverage of ground engineering principles within a risk management framework
-Features a large variety of examples that show good and poor mining situations in order to demonstrate the application of the established principles in practice
-Ideal for students and practitioners
About the author
Emeritus Professor Jim Galvin has a relatively unique combination of industrial, research and academic experience in the mining industry that spans specialist research and applied knowledge in ground engineering, mine management and risk management. His career encompasses directing ground engineering research groups in South Africa and Australia; practical mining experience, including active participation in the mines rescue service and responsibility for the design, operation, and management of large underground coal mines and for the consequences of loss of ground control as a mine manager; appointments as Professor and Head of the School of Mining Engineering at the University of New South Wales; and safety advisor to a number of Boards of Directors of organisations associated with mining.
Awards
Winner of the ACARP Excellence Research Award 2016.
The Australian Coal Industry's Research Program selects recipients to receive ACARP Research and Industry Excellence Awards every two years. The recipients are selected on the recommendation of technical committees. They are honored for achievement of a considerable advance in an area of importance to the Australian coal mining industry. An important criterion is the likelihood of the results from the project being applied in mines.
Winner of the Merv Harris Award from the Mine Managers Association of Australia.
The Merv Harris Award is named for Merv Harris who donated money to be invested for a continuing award in 1988. With the award, the Mine Managers Association of Australia honors members of the Association who demonstrate technical achievement in the Australian Coal Mining Industry. The first award was granted in 1990, since then, only two people have received this honor.
The book has received the following awards…. AGS (Australian Geomechanics Society) congratulates Dr Galvin for these awards
Specificaties
Inhoudsopgave
1.1. What is Ground Engineering
1.2. Peculiarities of Ground Engineering
1.3. State of the Art
1.4. Risk Management
1.5. The Impact of Risk Management and Technology
2. FUNDAMENTAL PRINCIPLES FOR GROUND ENGINEERING
2.1. Introduction
2.2. Characteristics of Underground Coal Mining
2.2.1. Geological Setting
2.2.2. Mine Access
2.2.3. Mine Roadways
2.2.4. Mining Methods
2.3. Rock Mass Fabric
2.4. Physical Parameters
2.5. Material Properties
2.5.1. Load-Displacement
2.5.2. Stress-Strain
2.5.3. Stiffness
2.5.4. Strength
2.5.5. Stored Energy and Seismicity
2.5.6. Poisson’s Effect
2.5.7. Cohesion and Friction on a Fracture Surface
2.5.8. Post-peak Strength Behaviour
2.6. Rock Mechanics
2.6.1. Specifying Stresses within Rock
2.6.2. Strength of Rock
2.6.3. Equivalent Modulus of Strata
2.6.4. Failure Criteria
2.6.5. Effective Stress
2.6.6. Primitive, Induced, Resultant and Field Stress
2.6.7. Field Stress in Coal
2.6.8. Field Shear Strength
2.6.9. Reduction in Confinement
2.6.10. Rock Mass Classification Systems
2.6.11. Failure Mode
2.6.12. Ground Response Curve
2.7. Analysis Techniques
2.7.1. Empirical Methods
2.7.2. Analytical Methods
2.7.3. Numerical Methods
2.7.4. Safety Factor
2.7.5. Statistical and Probabilistic Analysis
2.8. Statics
2.8.1. Introduction
2.8.2. Basic Definitions and Principles
2.8.3. Transversely Loaded Beams
2.8.4. Axially Loaded Columns
2.8.5. Eccentrically Loaded Columns
2.8.6. Beam-Columns Subjected to Simultaneous Axial and Transverse Loading
2.8.7. Thin Plate Subjected to Axial and Transverse Load
2.8.8. Linear Arch Theory
2.8.9. Classical Beam Theory Applications in Ground Engineering
3. EXCAVATION MECHANICS
3.1. Introduction
3.2. Excavation Response
3.3. Caving Mechanics
3.3.1. Basic Principles
3.3.2. Strong Massive Strata
3.3.3. Span Design
3.4. Elevated Horizontal Stress
3.5. Shallow Mining
3.5.1. Principles
3.5.2. Practice
4. PILLAR SYSTEMS
4.1. Introduction
4.2. Functional, Risk Based Approach To Pillar Design
4.3. Pillar Working Stress
4.3.1. Pillar System Stiffness
4.3.2. Regular Bord and Pillar Layouts
4.3.3. Irregular Bord and Pillar Layouts
4.4. Pillar System Strength
4.4.1. Defining Pillar Strength and Failure
4.4.2. Geological Factors
4.4.3. Geometric Factors
4.4.4. Scale Factors
4.4.5. Determining Pillar Strength
4.5. Quantifying Design Risk
4.5.1. Probabilistic Stability Prediction
4.5.2. Probabilistic Design
4.5.3. Summary Points
4.6. Pillar Failure Modes
4.6.1. Types
4.6.2. Conventional Failure Mode
4.6.3. Dynamic Confined Core Failure
4.7. The Complexity of Pillar Behaviour
4.8. Pillar Design Considerations
4.8.1. Empirical Data Regime
4.8.2. Stiff Superincumbent Strata
4.8.3. Behaviour
4.8.4. Seam Specific Strength
4.8.5. Ground Response Curve
4.8.6. Correlations Between Safety Factor and Performance Probability
4.8.7. UNSW Pillar Design Methodology
4.8.8. Diamond Shaped Pillars
4.8.9. Irregular Pillar Shapes
4.8.10. Highwall Mining
5. INTERACTION BETWEEN WORKINGS
5.1. Introduction
5.2. Workings in the Same Seam
5.2.1. Framework
5.2.2. Pillar Systems
5.2.3. Roadways
5.2.4. Panels
5.2.5. Interaction Between Roadways and Excavations
5.3. Multiseam Workings
5.3.1. Framework
5.3.2. Pillar Systems
5.3.3. Extraction Panels
6. SUPPORT AND REINFORCEMENT SYSTEMS
6.1. Introduction
6.2. Primary Characteristics
6.3. Standing Support
6.3.1. Props
6.3.2. Timber Chocks
6.3.3. Cementitious Chocks
6.3.4. Steel Arches and Sets
6.3.5. Pillars
6.4. Tendon Support and Reinforcement
6.4.1. Scope
6.4.2. Functions of Tendons
6.4.3. Anchorage of Tendons
Net verschenen
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