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The Cutter Suction Dredger .2
3.1. General description 3
3.1.1. Areas of application 4
3.1.2. History 5
3.1.3. Working method .6
3.2. The design .8
3.2.1. The production capacity .9
3.2.2. The dredging depth .9
3.2.2.1. The maximum dredging depth 9
3.2.2.2. The minimum dredging depth 10
3.2.3. The width of the cut 12
3.2.4. The type of soil .14
3.2.5. The transport distance .14
3.2.6. Access to the dredging site .15
3.3. The dredging equipment .15
3.3.1. The cutter head .16
3.3.1.1. The dimensions of the cutter head 16
3.3.1.2. The cutting power .16
3.3.1.3. The cutter speed 17
3.3.2. The reaction forces on the cutter 18
3.3.2.1. The horizontal and vertical cutting force 18
3.3.2.2. The axial force 20
3.3.2.3. The ladder weight .21
3.3.3. The side-winch power and speed 21
3.3.4. The ladder winch speed and power 24
3.3.5. The dredge pumps 24
3.3.6. The jet pump .25
3.4. The drives .25
3.4.1. The cutter head drive 25
3.4.2. The side winch drives .27
3.4.3. The ladder drive 27
3.4.4. The sand pump drives .27
3.5. Spudsytems .28
3.5.1. The spud carriage system .28
3.5.2. The fixed spud system 30
3.5.3. The spud door system .32
3.5.4. The walking spud system .32
3.5.5. The rotor spud system 33
3.5.6. The Christmas tree 34
3.6. The general layout .35
3.7. Technical construction Fout! Bladwijzer niet gedefinieerd.
3.7.1. The Hull 40
3.7.2. The cutter head ladder 41
3.7.3. The cutter head .43
3.7.4. Tooth and cutting edge systems .46
3.7.5. The side wires .50
3.7.6. The anchor booms 51
3.7.7. The spuds 52
3.7.8. The spud lifting system 52
3.7.9. Pumps and pipelines .53
3.7.9.1. The suction pipeline .53
3.7.9.2. The pumps 54
Wb3408b Designing Dredging Equipment
3.7.10. The winches 55
3.7.10.1. The ladder winch 55
3.7.10.2. The side winces 55
3.7.10.3. Other winces .56
3.7.11. Hoisting equipment 56
3.7.12. Auxiliary equipment .56
3.8. The dredging process .57
3.8.1. The spillage 57
3.8.2. The production in breach-forming soils .59
3.8.3. The production by non-breach forming soils .61
3.8.4. Specific energy .63
3.8.5. The cutting production .65
3.8.6. The spillage 67
3.9. Enclosures .68
3.9.1. The relation between swing speed and side winch speed .68
3.9.2. The side winch force and power .69
3.9.3. The shape and cutting geometry of cutter heads 70
3.9.4. Cutting by teeth or chisels 74
3.9.5. Conditions for cutting clearance .75
3.9.5.1. The effect of warping on the clearance angles .77
3.10. References .7