minimising harbour siltation (mhs) - izw - … below chart datum [m] old outer harbour 100 khz old...
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PIANCPIANC--KolloquiumKolloquiumYoung Professional GroupYoung Professional Group
28. Juni 2007, Hannover28. Juni 2007, Hannover
MinimisingMinimising HarbourHarbour SiltationSiltation(MHS)(MHS)
PIANC Working Group 43PIANC Working Group 43
H. Nasner
MHS Methods
1. KSO : Keep sediment out – minimisesediment flux to the harbour area.
2. KSM : Keep sediment moving – minimisesediment settling in the harbour area
3. KSN : Keep sediment navigable – takeadvantage of transitional properties of fluidmud or prevent it consolidating so thatships can navigate through the suspension(i.e. nautical depth principle)
4. KSIS : Keep sediment in the system
Sedimentation for B/L, Ports of Bremen
Training Walls in the Outer Weser
Change of cross-section Weser-km 81
Sedimentation Rates and Flood Currents,Neustadt Harbour, 1967 - 1991
Flow and Sedimentation Patterns after Closure ofThe Harbour Channel, Neustadt Harbour, 1992 - 1996
Intake for top-up water in Weser Estuary
Comparision of tide curve v suspended sediment concentrationshowing low values after HW. Shaded area shows offtake period
Map of the German North-Sea CoastEurope
Sounding Map of the Emden Harbourin April 2005 (15 kHz)
Depths[m SKN]
Map of Differences between the 15 kHz- and 210 kHz-Horizon in the Emden Harbour
Sounding in April 2005
Differences between15 kHz and 210 kHz
Self-propelled hopper with underwater pump for infrequentlyfluidising, raising, oxydising & re-depositing fluid mud
Sounding Map of the Fishery Harbour Area in January and February 2002 (15 kHz)
Depths[m SKN]
Map of Differences between the 15 kHz- and 210 kHz-Horizon in the Fishery Harbour Area
Sounding from January and February 2002
Differences between15 kHz and 210 kHz
Water Injection Vessel
Sounding Maps of the Outer Harbours of Brunsbüttel in September 2003 (15 kHz)
Depths[m SKN]
Map of Differences between the 15 kHz- and 100 kHz-Horizonin the Outer Harbours of Brunsbüttel
Sounding from September 2003
Differences between15 kHz and 100 kHz
Longitudinal Sections through the Outer Harbours of Brunsbüttel in September 2003 (15 kHz and 100 kHz)
Distance from Lock [m]
Dep
thbe
low
Cha
rt D
atum
[m]
Old Outer Harbour 100 kHz
New Outer Harbour 100 kHzOld Outer Harbour 15 kHz
New Outer Harbour 15 kHz
Old
Lock
sN
ewLo
cks
Closure of Harbour Channel, Neustadt Harbour, Bremen
Benefit from new top-up water inlet
Water Injection Summary, Port of Bremerhaven
PIANCPIANC--KolloquiumKolloquiumYoung Professional GroupYoung Professional Group
28. Juni 2007, Hannover28. Juni 2007, Hannover
MinimisingMinimising HarbourHarbour SiltationSiltation(MHS)(MHS)
PIANC Working Group 43PIANC Working Group 43
H. Nasner