Sedimentation

Auckland, New Zealand.

• PREFACE -- LIST OF SYMBOLS -- 1 INTRODUCTION -- 2 BASIC CONCEPTS OF SOIL EROSION AND SEDIMENT TRANSPORT -- 2.1 Sediment characteristics -- 2.2 Sediment entrainment -- 2.3 Channel roughness -- 2.4 Sediment transport -- 2.5 Some aspects of river morphology -- 2.5.1 Large scale features -- 2.5.2 Bed features -- 2.5.3 Scouring of the river bed -- 2.5.4 Secondary currents -- 2.6 Degradation and aggradation -- 2. 7 Soil erosion and sediment yield -- 2.8 Sediment control -- 3 RIVER INTAKES -- 3 .1 Introduction -- 3.2 General features of flow diversion -- 3.2.1 Flow patterns -- 3.2.2 Sediment transport -- 3.2.3 The lateral diversion -- 3.3 Small intakes -- 3.4 Pump intakes -- 3.5 Intakes from mountain streams -- 3.5.1 The bottom screen intake -- 3.5.2 Pier intakes -- 3.6 Intakes from large rivers -- 3.6.1 Intakes without a barrage -- 3.6.2 Intakes with barrage -- 3.6.3 Dividing walls -- 3.6.4 Undersluices -- 3.6.5 Diversion entrance -- 3.6.6 Excluder tunnels -- 3.6.7 Guide vanes -- 4 INTERCEPTION AND REMOVAL OF SEDIMENT FROM DIVERTED WATER -- 4.1 Sediment removal by settling -- 4.2 Settling tanks with continuous flushing -- 4.3 Sediment ejectors -- 4.4 Vortex tube sand trap -- 4.5 Vortex chamber -- 5 RESERV OIR SEDIMENTATION -- 5 .1 Incoming sediment -- 5.2 Trap efficiency -- 5.3 Sediment distribution in reservoirs -- 5 .4 Rehabilitation of reservoirs -- REFERENCES -- SUBJECT INDEX.