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Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
Jv r hsb antwerpen dec 2010
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Jv r hsb antwerpen dec 2010

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Jeroen van Reenen, aspects of surveying in the Port of Rotterdam

Jeroen van Reenen, aspects of surveying in the Port of Rotterdam

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  • 1. Navigational depth Best practice in Rotterdam approaches Jeroen van Reenen
  • 2. Navigational depth <ul><li>Port environment </li></ul><ul><li>Dredging mangement </li></ul><ul><li>Navigational depth </li></ul><ul><li>Density surveying </li></ul><ul><li>Investigation surveys </li></ul><ul><li>Research siltation in Rotterdam ports </li></ul>
  • 3. <ul><li>River estuary </li></ul><ul><li>Tidal water </li></ul><ul><li>River discharge </li></ul><ul><li>Salt water currents </li></ul><ul><li>Storms </li></ul>1 Port Environment
  • 4. &nbsp;
  • 5. &nbsp;
  • 6. &nbsp;
  • 7. 2 Dredging management <ul><li>By area </li></ul><ul><li>By organisation </li></ul><ul><li>By contract </li></ul><ul><li>By dredging equipment </li></ul><ul><li>By navigational depth definition / measurements </li></ul>
  • 8. Port of Rotterdam / Rijkswaterstaat
  • 9. Dredging contract type <ul><li>TDS based </li></ul><ul><li>Time based </li></ul><ul><li>Combination TDS/Time </li></ul><ul><li>Lum sum contract </li></ul>
  • 10. Dredging equipment <ul><li>Size of hopper dredgers </li></ul><ul><li>Submersible pump </li></ul><ul><li>Use of plough vessel </li></ul>
  • 11. 3 Navigational depth <ul><li>Fluid mud </li></ul><ul><li>Measurement systems </li></ul><ul><li>Data processing / charting </li></ul>
  • 12. Navigational depth parameters <ul><li>Viscosity [N*s / m 2 ] </li></ul><ul><li>Sheer stress [N / m 2 ] </li></ul><ul><li>Density [kg / m 3 ] </li></ul><ul><li>PIANC (1983) </li></ul><ul><li>1) The ship’s hull must suffer no damage even if its draught reaches the full navigable depth </li></ul><ul><li>2) The navigation response of the vessel must not be adversely affected </li></ul>
  • 13. Minimum UKC Berge Stahl 343 m long 63 m wide 365.000 T 354.000 T @ 23m 3 deg roll, 1.65m
  • 14. Rotterdam definitions <ul><li>Navigational depth at 1200 g/l density level </li></ul><ul><li>Multibeam echosounding for “top of siltation layer” </li></ul><ul><li>Assuming top of siltation 1030 g/l </li></ul><ul><li>Density measurment to detect layer 1030-1200 g/l </li></ul>
  • 15. 4 Density surveying Echosounder depth 1.2 T/m3 depth
  • 16. Density measurments <ul><li>Weight </li></ul><ul><li>Radio active counting </li></ul><ul><li>Tuning fork </li></ul><ul><li>Acoustics </li></ul>
  • 17. DensiTune <ul><li>Tuning fork technique </li></ul><ul><li>Fluid mud layer detection up to 1250 gr/l </li></ul>
  • 18. Density-depth chart <ul><li>1030 g/l: 23.25 m </li></ul><ul><li>1200 g/l: 23.47 m </li></ul><ul><li>Density layer: 0.22 m </li></ul>
  • 19. DensiTune point export
  • 20. DensiTune Calibration <ul><li>Get a representative local fluid mud sample </li></ul><ul><li>If density is not over 1200 g/l give time to settle </li></ul><ul><li>Drain water </li></ul><ul><li>No more stirring than necessary to get a homogeneous sample </li></ul><ul><li>Min. 5 different density measurements by adding sea water to sample material </li></ul>
  • 21. Van Veen grab
  • 22. Calibration barrel
  • 23. DensiTune calibration
  • 24. Check on measurements against calibration
  • 25. Point measurements
  • 26. TIN model
  • 27. Isopach DTM
  • 28. SILAS raw data Digital 200 KHz SILAS 1.2 density Echo “noise”
  • 29. Calibration of Silas
  • 30. Singlebeam tracks
  • 31. Monitor tracks
  • 32. Long sections
  • 33. Authority boundary
  • 34. Multibeam depth (240 KHz)
  • 35. Navigational depth (1200 g/l)
  • 36. Navitracker <ul><li>Nucleair system </li></ul><ul><li>Used verticale </li></ul>
  • 37. Slib tank Antwerpen tests <ul><li>Check accuracy of DensiTune system </li></ul><ul><li>Check on accuracy of Silas system </li></ul>
  • 38. &nbsp;
  • 39. DensiTune results
  • 40. Silas results
  • 41. New development undisturbed bottom sampling <ul><li>Based on standard Beeker-sampler </li></ul><ul><li>Free fall triggering </li></ul><ul><li>Altitude and attitude monitoring </li></ul><ul><li>Density measurement by Anton Paar calibrated instrument </li></ul><ul><li>Convert sample profile data for Silas echosounder calibration </li></ul>
  • 42. Free fall Beeker sampler
  • 43. Sample density measurement
  • 44. 5 Siltprofiler surveys <ul><li>Water column profiling </li></ul><ul><li>Current measurements </li></ul><ul><li>Water samples for calibration </li></ul>
  • 45. Siltprofiler
  • 46. OBS data
  • 47. 6 Research siltation Forces of nature <ul><li>Current </li></ul><ul><li>River discharge </li></ul><ul><li>Tide </li></ul><ul><li>Salinity </li></ul><ul><li>Wind force and direction </li></ul><ul><li>Temperature </li></ul>
  • 48. Current and tide <ul><li>Transport of suspended sediment </li></ul><ul><li>River flow against tidal currents </li></ul><ul><li>Eddies in port basins </li></ul>
  • 49. Current profiles
  • 50. Suspended sediment
  • 51. Salinity Flud from Sea River flow Wedge mixing Surface mixing
  • 52. Salinity / siltation
  • 53. Wind <ul><li>Wind creates waves, waves bring sediment into the water column </li></ul><ul><li>Wind influences the tide </li></ul>
  • 54. Windforce 2009
  • 55. Temperature <ul><li>Water temperature range 5 – 20 deg </li></ul><ul><li>Microbiology in bottom layers </li></ul><ul><li>Methane gas production </li></ul>
  • 56. Temperature / dredging
  • 57. Temperature / Siltation layer
  • 58. Thank you for your attention

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