Vietnam presentation coastal processes

Introduction to coastal processes and structures Ir K Lendering Vietnam, October 20th 2014 Challenge the future Introduction: About the Netherlands • Flat low delta, precarious location, ‘best’ flood control system in the world Several Dutch companies are involved in Water projects Conservation projects and land reclamation throughout the world • Lowest altitude: 6.74 meter below sea level (near Rotterdam) • Highest altitude: 323 meter (near Maastricht) • Two main ports: airport Schiphol (the fourth largest airport in Europe) and seaport Rotterdam (the largest seaport in Europe) Challenge the future TUDelft Challenge the future Delft University of Technology • Founded in 1842 • 2500 scientific staff • 17,000 Bsc and Msc students (2000 civil engineering) • University of Technology: Science, Engineering and Design • Strong focus on valorisation and application of research • Excellent contacts with Industry, e.g RD Shell, Akzo, Dredging and Engineering firms Challenge the future Hydraulic Engineering and Water Management at Delft University Hydraulic Engineering Water Management Coastal Engineering Delta Urbanism Flood Risk Management Ports Challenge the future Students • Faculty of civil engineering +/- 2000 students • year BSc program • year MSc program Nr of graduated students BSC Civil engineering +/- 275 MSC Civil engineering +/- 175 - Hydraulic engineering 65 Challenge the future Kasper Lendering • 2006 – 2012 BSc/MSc • Hydraulic Engineering • 2012 – Present • Researcher Hydraulic Engineering and Flood Risk Challenge the future Contents of guest lecture • 09:00 – 09:40 Introduction to coastal processes • 09:45 – 09:55 Break • 09:55 – 10:40 Coastal interventions and sand engine • 10:40 – 10:50 Break • 10:50 – 11:30 Coastal zone development Challenge the future Coastal engineering Start with thinking / understanding processes Then design / engineer possible solutions Cyclic process Challenge the future What has happened? (Bosboom, 2013) Challenge the future 10 Example: Cuba, port of Batabano • Short term solution: dredging • Long term solution: combination of breakwaters will reduce the accretion in the harbour significantly and create a bypass • Total cost over lifetime of project are reduced when choosing long term solution (Lendering, 2011) Challenge the future 85 Coastal development: palm island Challenge the future 86 Coastal development: world Challenge the future 87 Coastal development: Hong Kong International airport Challenge the future 88 Example: beach creation on Curacao Challenge the future 89 Example: beach creation on Curacao • Rough wave climate (Hs 1.5m) • Steep, rocky coast • How would you create a sandy beach? Challenge the future 90 Example: beach creation on Curacao (Waterman, 2013) Challenge the future 91 Reduce wave action with offshore breakwaters and create beach with nourishments Challenge the future 92 Example: beach creation on Curacao (Waterman, 2013) Challenge the future 93 Example: beach creation on Curacao (Waterman, 2013) Challenge the future 94 Safety: Storm surge barriers • Prof Jonkman Challenge the future 95 What has happened? (Bosboom, 2013) Challenge the future 96 What has happened? • The ship hit the shoal visible on the photo and ran aground • A beach fill was made to easier get the cargo from the stranded ship on land • Behind the stranded ship, sand is deposited due to reduced wave heights • This dredging vessel is preparing a recreational beach • All of the above is nonsense Challenge the future 97 What has happened? • The ship hit the shoal visible on the photo and ran aground • A beach fill was made to easier get the cargo from the stranded ship on land • Behind the stranded ship, sand is deposited due to reduced wave heights • This dredging vessel is preparing a recreational beach • All of the above is nonsense Challenge the future 98 Thank you • Any questions? • Hope to see you again soon! • k.t.lendering@tudelft.nl Challenge the future 99 ... Introduction to coastal processes • 09:45 – 09:55 Break • 09:55 – 10:40 Coastal interventions and sand engine • 10:40 – 10:50 Break • 10:50 – 11:30 Coastal zone development Challenge the future Coastal. .. the future 14 Coastal processes: question • The large deltas are found on leading or trailing edge coasts • Leading edge coasts • Trailing edge coasts Challenge the future 15 Coastal processes: ... 16 Coastal processes: question • Large deltas have a surplus or deficit of sediment from their catchment areas? i ii Surplus of sediment Deficit of sediment Challenge the future 17 Coastal processes: