Shovel-Truck Systems: Modelling, Analysis and Calculations

✍ Scribed by Jacek M. Czaplicki

• Publisher: CRC Press
• Year: 2008
• Tongue: English
• Leaves: 170
• Edition: 1
• Category: Library

✦ Synopsis

This book provides a comprehensive analysis of the exploitation process of shovel-truck systems using modelling, analysis and calculations following specific procedures:- analyzing the reliability and accessibility of shovels- discussing the functioning of a truck-repair shop system- reliability of trucks- existence of haulers reserve- repair shop service capability- possibility of occurrence of a queue of failed trucks- selection of structural truck system parameters- reliability of repair stands- constructing a set of unconditional efficiency measures for the system- outlining of system productivity measures The book also aimed to provide a penetrative analysis of 6 stochastic mechanisms, namely the:(1) Influence of reliability and accessibility of power shovels on system efficiency and decisions making(2) Influence of reliability of hauling machines on the number of repair stands and trucks needed(3) Influence of truck accessibility on the number of haulers and repair stands needed(4) Influence of reliability of repair stands on the number of failed trucks in a queue waiting for repair, on the number of trucks in work state and the number of repair stands needed(5) Influence of all these properties on the number of trucks at power shovels, system efficiency and productivity(6) Influence of implementation of type of priority in truck dispatching on system performance parameters. The book will be of interest to all mining engineers and civil engineers involved in use and development of shovel-truck systems, technology and planning. Moreover, it can be used as textbook for advanced courses in mine mechanization.

✦ Table of Contents

Shovel-Truck Systems: Modelling, Analysis and Calculation......Page 3
Contents......Page 6
Preface and acknowledgements......Page 8
About the author......Page 10
List of major notations......Page 12
1.1 OPEN PIT MINES......Page 15
1.2 MACHINERY SYSTEMS APPLIED......Page 16
1.3 DESCRIPTION OF OPERATION OF THE MACHINERY SYSTEM......Page 21
2.1 THE MARYANOVITCH MODEL......Page 23
2.2 THE G/G/k/r MODEL......Page 25
CHAPTER 3: Literature review......Page 31
CHAPTER 4: Purpose, method applied and field of consideration......Page 35
CHAPTER 5: Reliability and the exploitation process......Page 39
6.1 SHOVEL REPAIR TIMES......Page 47
6.2 SHOVEL WORK TIMES......Page 48
6.3 TRUCK REPAIR TIMES......Page 49
6.4 TRUCK WORK TIMES......Page 50
6.5 TIMES OF TRUCK WORK CYCLE PHASES......Page 51
7.1 SYSTEM OF SHOVELS......Page 55
7.2 TRUCK-WORKSHOP SYSTEM......Page 60
7.3 PROBABILITY DISTRIBUTION OF NUMBER OF TRUCKS IN WORK STATE......Page 80
CHAPTER 8: Verification of selection of structural parameters of the system......Page 85
9.1 RELIABILITY OF REPAIR STANDS......Page 93
9.2 SHOVEL-TRUCK SYSTEM......Page 97
CHAPTER 10: Further analysis and system calculation......Page 105
CHAPTER 11: Modelling—Case study I......Page 113
CHAPTER 12: Spare loaders......Page 127
CHAPTER 13: Modelling—Case study II......Page 131
14.1. INTRODUCTION......Page 141
14.2. MODIFICATION OF CASE II—THE IDEAL DISPATCHER......Page 144
CHAPTER 15: Hauling distance and system characteristics......Page 147
CHAPTER 16: Special topic: Availability of a technical object......Page 153
CHAPTER 17: Final remarks......Page 161
References......Page 163