Cover -- Half Title -- Title -- Copyright -- Dedication -- Contents -- About the Author -- Preface -- Symbols -- Acronyms -- Chapter 1 Introduction -- 1.1 Blasting Basics -- 1.2 Blasting Objectives -- 1.3 Blast Design -- 1.3.1 Understanding the Blast Design -- 1.3.2 Rockmass and Blast Design -- 1.3.3 Explosive and Blast Design -- 1.4 Blast Outcome: The Negatives -- 1.5 Focus Flyrock: Why? -- Chapter 2 Flyrock! What is It? -- 2.1 Definitions and Confusion in Terminology and Reporting -- 2.1.1 Flyrock Definition -- 2.1.2 Flyrock and Associated Terminology -- 2.2 The Concept of Wild Flyrock
2.3 The Rebound Effect -- 2.4 Boulder Blasting -- 2.5 Toe Blasting -- 2.6 Situations of Flyrock -- 2.6.1 Mining -- 2.6.2 Civil and Construction -- 2.6.3 Other Underground Excavations -- 2.6.4 Slopes -- 2.6.5 Demolition Blasting -- 2.7 Domain Shift to Rockfall -- 2.8 Flyrock Measurement Methods -- 2.8.1 Use of Drones in Flyrock Videography -- Chapter 3 The True Nature of Flyrock -- 3.1 Blast Design and Flyrock -- 3.2 Blasthole Diameter and Flyrock -- 3.2.1 Specific Charge -- 3.3 Role of Stemming in Flyrock -- 3.3.1 Stemming Length -- 3.3.2 Stemming Material -- 3.3.3 Stemming Method and Practice
3.3.4 Stemming Plugs -- 3.4 Role of Burden in Flyrock -- 3.5 In Situ Rockmass Characteristics -- 3.5.1 Rockmass Conditions and Flyrock -- 3.5.2 The Unknowns -- 3.6 Explosive and Their Role -- 3.6.1 Delay and Its Malfunctioning -- 3.7 Flyrock Domains -- 3.7.1 Post-ejection Phenomenon of Flyrock -- 3.7.1.1 Initial Velocity -- 3.7.1.2 Flyrock Angle -- 3.7.1.3 Air Drag -- 3.7.1.4 Magnus Effect -- 3.7.1.5 Rebound -- 3.7.1.6 Size of Flyrock -- Chapter 4 Prediction of Flyrock Distance -- 4.1 Theoretical Concepts -- 4.2 Mathematical Models -- 4.3 Empirical and Semi-empirical Models
4.4 Comparative Analysis of Various Flyrock Distance Models -- 4.4.1 Summary and Broad Analysis of Data from ANN Reports -- 4.5 Numerical Concepts -- 4.6 Intelligent Methods -- 4.7 Pressure-Time-based Methods -- 4.8 Some Insights into Flyrock Prediction -- 4.8.1 Concrete Models -- 4.8.2 Field Testing of Flyrock -- 4.8.2.1 Modelling Constraints -- 4.8.3 Modelling the Unknown: Flyrock -- 4.8.4 Flyrock Size -- 4.9 Simulation of Flyrock Distance with Air Drag -- 4.10 The Flyrock Distance Prediction: Folly or Truth -- Chapter 5 Blast Danger Zone -- 5.1 Difficult Geomining Conditions
5.2 Objects of Concern in Mining -- 5.3 Accidents: The Real Concern -- 5.4 Blast Danger Zone: Definition and Terminology -- 5.4.1 Legal Framework -- 5.4.2 Pre-requisites to Define Blast Danger Zone -- 5.5 Risk-based Blast Danger Zone for Flyrock -- 5.5.1 Empirical Method -- 5.5.2 Stochastic Method -- 5.5.3 Pressure-Time Method -- 5.6 Definition of Flyrock Permissible Distance -- Chapter 6 Flyrock: "CAP IT -- 6.1 Complete Know-how of Mines -- 6.1.1 Geology of the Mining Area -- 6.1.2 Identification of Potential Zones of Flyrock -- 6.1.3 Presence of Objects of Concern
Notes
Description based upon print version of record
6.1.4 Orientation of Objects of Concern with Respect to Blast Faces
