Vermelding onderdeel organisatie
February 1, 2012
1
Chapter 4: Considerations at systems
level
ct5308 Breakwaters and Clos...
February 1, 2012 2
Functions of breakwaters
• protection against waves
• protection of port and shipping under normal
cond...
February 1, 2012 3
Allowable wave heights
Type of vessel Maximum Hs in m
at the berth
Pleasure craft
Fishing vessel
Dredge...
February 1, 2012 4
harbour of Marseilles
February 1, 2012 5
Breakwater at the Europort entrance
February 1, 2012 6
A system of detached breakwaters at
Fiumicino, Italy
February 1, 2012 7
Flow pattern at the Europort entrance
February 1, 2012 8
Entrance to the port of Abidjan
February 1, 2012 9
Flow pattern at the port of Abidjan
February 1, 2012 10
Port and
breakwaters of
IJmuiden
February 1, 2012 11
Siltation at the
entrance to the
port of Paradip,
India
February 1, 2012 12
Functions of closure dams
• land reclamation
• shortening of the length of sea defence
• creating fres...
February 1, 2012 13
The Rhine Meuse delta before the
year 1000
February 1, 2012 14
Situation after damming the river
Meuse
February 1, 2012 15
Situation after the St.Elisabeth’s
Flood
February 1, 2012 16
The Biesbosch area
February 1, 2012 17
The Afsluitdijk and the tidal range
February 1, 2012 18
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Chapter 4: Considerations at System Level

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4. Considerations at System Level

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Chapter 4: Considerations at System Level

  1. 1. Vermelding onderdeel organisatie February 1, 2012 1 Chapter 4: Considerations at systems level ct5308 Breakwaters and Closure Dams H.J. Verhagen Faculty of Civil Engineering and Geosciences Section Hydraulic Engineering
  2. 2. February 1, 2012 2 Functions of breakwaters • protection against waves • protection of port and shipping under normal conditions • protection of ports under extreme conditions • shore protection • guiding of currents • protection against shoaling • provision of dock and quay facilities
  3. 3. February 1, 2012 3 Allowable wave heights Type of vessel Maximum Hs in m at the berth Pleasure craft Fishing vessel Dredges and dredge barges General cargo (<30.000 dwt) Dry bulk cargo (30.000 dwt) Dry bulk cargo (<100.000 dwt) Oil tankers (<30.000 dwt) Oil tankers (<200.000 dwt) Oil tankers (<300.000 dwt) Passenger vessels 0.15 – 0.25 0.40 0.80 – 1.00 1.00 – 1.25 1.00 – 1.25 1.50 1.00 – 1.25 1.50 – 2.50 2.50 – 3.00 0.70 data from Thoresen, 1988
  4. 4. February 1, 2012 4 harbour of Marseilles
  5. 5. February 1, 2012 5 Breakwater at the Europort entrance
  6. 6. February 1, 2012 6 A system of detached breakwaters at Fiumicino, Italy
  7. 7. February 1, 2012 7 Flow pattern at the Europort entrance
  8. 8. February 1, 2012 8 Entrance to the port of Abidjan
  9. 9. February 1, 2012 9 Flow pattern at the port of Abidjan
  10. 10. February 1, 2012 10 Port and breakwaters of IJmuiden
  11. 11. February 1, 2012 11 Siltation at the entrance to the port of Paradip, India
  12. 12. February 1, 2012 12 Functions of closure dams • land reclamation • shortening of the length of sea defence • creating fresh water reservoir • creation of tidal energy basin • creation of a fixed level harbour basin • creation of a construction dock • providing road or railroad • repair a dike breach • control of upland flow • creating fish ponds • cutting of river bends
  13. 13. February 1, 2012 13 The Rhine Meuse delta before the year 1000
  14. 14. February 1, 2012 14 Situation after damming the river Meuse
  15. 15. February 1, 2012 15 Situation after the St.Elisabeth’s Flood
  16. 16. February 1, 2012 16 The Biesbosch area
  17. 17. February 1, 2012 17 The Afsluitdijk and the tidal range
  18. 18. February 1, 2012 18
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