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| Weight | 700 g |
|---|---|
| Author | EM Gosschalk |
| Publisher | ICE Publishing |
| ISBN Number | 0727730991 |
| Year | 2002 |
Contents
Preface ix
Acknowledgements xi
Part I. Conceptual and planning practice for reservoirs 1
Chapter 1. Introduction and philosophy of approach 3
Introduction 3
Background 3
Disciplines needed 4
Constraints on training and experience 5
The Engineering thread 6
Mode of work 8
The need for mutual understanding 9
The roles of empirical and theoretical methods 10
References 13
Chapter 2. Objectives 15
The purposes of reservoirs 15
The engineering planning of reservoirs 17
Plan of work 19
Reference 21
Chapter 3. Selection of potential dam sites and conceptual schemes 23
Appraisal of data and formulation of possible
projects 23
Prefeasibility studies 29
Choice of dam type 35
Choice of size of dam 42
References 44
Chapter 4. Investigation of selected sites and geological studies 45
Site investigations 45
Methods 47
Conclusion 61
References 61
Chapter 5. Hydraulic studies 63
Introduction 63
Past experience 64
Analytical methods 66
Computational models 67
Physical models 71
Bibliography 81
Chapter 6. Hydrological studies 83
Background 83
Deterministic methods 84
Flood studies 86
Droughts 97
References 99
Addendum to Chapter 6: Guidelines from the United States of America 100
Chapter 7. Spillways 101
Intensity of flood flow to be provided for 101
The effect of type of dam on type of spillway needed 105
Energy dispersal 111
References 115
Further reading 116
Chapter 8. River diversions during construction 117
Intensity of flood discharge to be provided for 117
Methods of river diversion 118
Closure of river diversions on completion 120
Chapter 9. Seismic loading 123
The relevance of seismic risk to dams in the UK 123
The Engineering Guide to Seismic Risk to Dams in the United Kingdom 128
Peak ground accelerations for design in relation to factors of safety and accelerations liable to be suffered 131
Case histories of seismic incidents 136
Conclusions from case histories on improving the earthquake resistance of dams 159
Conclusion 161
References 162
Further reading 163
Part II. Development practice for reservoirs 165
Chapter 10. Water conduits for reservoirs 167
Purposes 167
Types 167
Routing 174
Permissible velocities of flow 178
Tunnel lining 179
Steel lining in tunnels 181
Grouting in tunnels 182
Final tunnel cross section 182
References 183
Chapter 11. Tunnelling problems and excavation of shafts 185
Low stresses in rock surround 185
Two more case histories 191
Methods of excavating shafts 195
Concluding remarks on tunnelling problems 197
Reference 198
Chapter 12. Electro-mechanical equipment and controls 199
Introductory remarks 199
Turbines 200
Generators 207
Transformers 207
Main travelling cranes 208
Transmission systems 210
Hydraulic valves and gates 211
References 218
Chapter 13. Environmental considerations 219
Introduction 219
Overview of the arguments for more large reservoir projects 223
Dams and development – the World Commission on Dams 226
Environmental impact assessments 229
References 238
Chapter 14. Costs and benefits 241
General 241
Cost estimates 242
Principles of project appraisal 247
References 254
Chapter 15. Efficient management for irrigation 255
Introduction 255
The meaning of efficiency 256
Planning for efficiency and control 258
Basic criteria 261
Water requirements 261
Water distribution systems 263
Balancing storages 264
Sources of water supply 265
Analysis 266
Control 266
Forecasting 267
Planned water shortages 268
Final design and economic analysis 269
References 269
Chapter 16. Small hydropower 271
Introduction 271
Criteria for successful development 272
Sound planning and design 273
Multiple development 274
Operation at optimum load factor 275
Conjunctive operation 276
The needs for small hydropower 276
Different users 279
Classifying and selecting small hydro schemes 283
Conclusions 287
Further information 288
References 288
Chapter 17. Safety and inspection of reservoirs 289
Introduction 289
The Reservoirs Act 1975 291
Proposed changes 298
Reviews by panels of experts 299
Remedial works 300
References 303
Chapter 18. Operation and maintenance, monitoring and inspection 305
General 305
Final construction report 305
Operating and maintenance instructions 306
Monitoring and inspection 308
Training and staffing 310
Potential unforeseen human, mechanical and electronic problems 311
Investigation and solution of leakage problems observed during inspections 313
Other problems 315
References 316
Index 327
