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Rockbolting : principles and applications /
This volume brings current theoretical and practical developments in the most widely used support device for underground rock excavations.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Kidlington, Oxford, United Kingdom :
Butterworth-Heinemann is an imprint of Elsevier,
2017.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Rockbolting: Principles and Applications; Copyright; Dedication; Contents; Preface; Biography; Chapter One: Introduction; Reference; Chapter Two: Typical Rockbolts; 2.1. Introduction; 2.2. Mechanical Rockbolt; 2.2.1. Expansion Shell Rockbolt; 2.2.2. Slot-and-Wedge Rockbolt; 2.3. Grouted Rockbolt; 2.3.1. Fully Grouted Rebar Bolt; 2.3.2. Fully Grouted Threadbar; 2.3.3. End-Grouted Bolt; 2.3.4. Fully Grouted Slot-and-Wedge Rockbolt; 2.4. Self-Drilling Rockbolt; 2.5. Cablebolt; 2.6. Frictional Rockbolt; 2.6.1. Split Set; 2.6.2. Inflatable Rockbolt; 2.7. Combined Rockbolt
- 2.8. Energy-Absorbing Yield Rockbolt2.8.1. Cone Bolt; 2.8.2. D-Bolt; 2.8.3. Garford Solid Bolt; 2.8.4. Yield-Lok; 2.8.5. Durabar; 2.8.6. Roofex; 2.8.7. He Bolt; 2.9. Accessories to Rockbolt; 2.9.1. Plates; 2.9.2. Nuts; 2.9.3. Washers; References; Chapter Three: Performance of Rockbolts; 3.1. Testing Methods; 3.1.1. Laboratory Static Testing; 3.1.2. Laboratory Dynamic Testing; 3.2. Static Performance of Conventional Rockbolts; 3.2.1. Under Axial Pull or Lateral Shear; Mechanical Rockbolts; Fully-Grouted Rebar Bolts; Split Set; Twin Strand Cablebolts; Fiberglass Rockbolts; Summary
- 3.2.2. Under Both Axial Pull and Lateral Shear3.3. Performance of Energy-Absorbing Rockbolts; 3.3.1. Cone Bolt; 3.3.2. D-Bolt; 3.3.3. Garford Bolt; 3.3.4. Yield-Lok; 3.3.5. Durabar; 3.3.6. Roofex Bolt; 3.3.7. He Bolt; 3.4. Field Observations; References; Chapter Four: Mechanics of Rockbolting; 4.1. Types of Rockbolts; 4.2. Rockbolt Models; 4.2.1. Two-Point Anchored Rockbolts; 4.2.2. Fully Encapsulated Rockbolts; 4.2.3. Frictional Rockbolts; 4.2.4. Energy-Absorbing Rockbolts; 4.3. Interaction of Rockbolts With Rock; 4.3.1. Lang's Physical Model; 4.3.2. Loading Patterns In Situ
- 4.3.3. Fully Encapsulated Rockbolts4.3.4. D-Bolt; 4.3.5. Inflatable Rockbolts; The Primary Contact Stress; The Secondary Contact Stress; The Borehole Pressure pi; Anchoring Mechanisms in Soft and Hard Rock; 4.4. Interaction of Rockbolts With Other Types of Support Devices; 4.5. Principles of Rock Support; 4.5.1. Ground Response Curve (GRC) and Support Characteristic Curve (SCC); 4.5.2. Construction of GRC; 4.5.3. SCC of Rockbolts; The Stiffness of Two-Point Anchored Rockbolts; The Stiffness of Fully Encapsulated Rebar Bolts; The Stiffness of Frictional Rockbolts
- The Stiffness of Energy-Absorbing RockboltsReferences; Further Reading; Chapter Five: Rockbolting Design; 5.1. Failure Modes of Rockmasses In Situ; 5.1.1. Block Fall Under Gravity; 5.1.2. Shear Failure in Soft and Weak Rock; 5.1.3. Extension Failure in Hard Rock; 5.1.4. Rockburst; 5.2. Loading Conditions Underground and Suitable Rockbolt Types; 5.2.1. In Low Stress Rockmasses; 5.2.2. In High Stress Rockmasses; 5.2.3. Suitable Rockbolt Types; 5.3. Design Principles; 5.3.1. Natural Pressure Arch; 5.3.2. Design Methodology; Australian Methodology; Canadian and Scandinavian Methodology