| Description |
1 online resource (340 pages) |
| Contents |
Cover; Half Title; Title Page; Copyright Page; Table of Contents; Preface; 1: Introduction; 1.1 Site investigation for rock dredging; 1.2 Outline of the research project; 1.2.1 Laboratory and desk studies; 1.2.2 Field studies; 1.3 Presentation of results; 1.4 Organisation of this work; 1.5 Acknowledgements; PART A: PROBLEMS OF WEAR IN ROCK DREDGING; 2: The problem; 2.1 Wear in rock dredging projects; 2.2 Outline of the problem of wear in rock dredging; 3: Cutter suction dredging; 3.1 Characteristics of cutter suction dredgers; 3.2 Cutter suction dredging |
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3.2.1 Operation of a cutter suction dredger (CSD)3.2.2 Soil and rock properties during transport and disposal; 3.2.3 Environmental impact during cutter suction dredging; 3.3 Basic mechanics of rock cutting dredging by CSD; 3.3.1 Cutter power; 3.3.2 Cutting by cutterhead; 3.3.3 Specific energy; 4: Concepts of wear processes from tribology; 4.1 Basic concepts of wear mechanisms; 4.1.1 Wear processes; 4.1.2 Friction; 4.2 Wear mechanisms in dredger teeth; 4.2.1 Studies on the wear of digger teeth and ripper tips; 4.2.2 Conclusions from tribological studies on cutting tool wear |
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4.3 Wear mechanisms in pumps and pipelines4.3.1 Slurry erosion lest; 4.3.2 Parameters influencing wear in pumps and pipes; 4.4 The tribosystem of rock cutting dredging; 5: Influence of site geology on wear problems; 5.1 Port Hedland harbour dredging project; 5.1.1 Site investigations for the dredging project; 5.1.2 Interpretation of the regional geology in the site investigation report; 5.1.3 Geotechnical interpretation in the site investigation report; 5.1.4 Tendering for the dredging project; 5.2 Excessive wear at Port Hedland |
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5.2.1 Reappraisal of the engineering geological conditions at Port Hedland5.2.2 Development of a new geological model; 5.2.3 Main conclusions of the reappraisal study at Port Hedland; 5.2.4 Other cases of extreme wear in dredging; 6: Conclusions; PART B: ROCK PROPERTIES INFLUENCING CUTTING AND WEAR; 7: Introduction; 8: The influence of discontinuities in the rock mass; 8.1 Types of discontinuities; 8.2 Effect of discontinuity properties on machine excavation; 8.2.1 Discontinuity spacing; 8.2.2 Discontinuity orientation; 8.2.3 Integral discontinuities |
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8.2.4 Shear strength of discontinuities and rock mass classification8.2.5 Summary of the influence of discontinuities; 9: The cutting of intact rock material; 9.1 A model of rock cutting; 9.1.1 Rock mechanical aspects; 9.1.2 Cutting of ductile rock; 9.1.3 Implications of the rock cutting model; 9.2 Simple rock cutting models; 9.2.1 Evansâ#x80;#x99; cutting model; 9.2.2 Nishimatsuâ#x80;#x99;s shear failure model; 9.2.3 Cutting model for pick points; 9.2.4 Relevance of simple rock cutting models; 9.3 Specific energy, cutting depth and spacing of cutting tools; 9.3.1 Specific energy and cutting depth |
| Notes |
9.3.2 Spacing of cutting tools |
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Print version record |
| Form |
Electronic book
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| ISBN |
9781351404662 |
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1351404660 |
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