the seine- scheldt project - cloud object storage · • renovation of hydraulic turbine banmolens...

THE SEINE- SCHELDT PROJECT Design & Build Harelbeke

ir. Ellen Maes, project engineer SMART Rivers 2011, 15th of September 2011

OVERVIEW

• Waterwegen en Zeekanaal NV

• Seine-Scheldt an inland navigation project on a European scale… … with respect for the natural river Lys

• Design & Build in Harelbeke

• Aims • Procedure

WATERWEGEN EN ZEEKANAAL NV

Flandres

Wallonia


Transport of goods over water

Water management & Safety against flooding

Multifunctionality of waterways

OVERVIEW





Seine bassin

Scheldt bassin

?

EUROPEAN DECISIONS (1996- 2006)

Trans-European Network for Transport (TEN-T) • Realisation of missing links • 30 priority projects, including Seine-Scheldt

• France (VNF): new canal “Seine – Nord Europe” • Flandres (W&Z): navigability improvements

• ECMT class Vb (185m x 11.4m x 3.5m)

SEINE- SCHELDT France

EUROPEAN FUNDING

• Multi-annual work program 2007-2013 • International cooperation Seine-Scheldt

• Intergovernmental Commission (IGC) • European Economic Interest Grouping (EEIG)

• 10% financial aid granted (= 460 mio EUR) • Canal Seine – Nord Europe (France) • Border Lys (France, Walloon and Flemish region) • Lys (45km) + canals (26km) in Ghent region (W&Z) • Scheldt + canal Condé-Pommeroeul (Wallonia)

Presenter

Presentation Notes

Flemish part: Ca. 420 mio EUR investment Ca. 42 mio EUR EU funding Total: Ca. 460 mio EUR EU funding

SEINE- SCHELDT Improving navigability

Design principles •1-way class Vb •2-way smaller vessels

SEINE- SCHELDT Water profile in the Lys river

• Water depth of 4.5m (now: Lys 3.5m)

• Maintaining the width at water level

=> Dredging necessary

SEINE- SCHELDT Improving navigability

Minimal lock dimensions 230m x 12.5m x 4.70m

SEINE- SCHELDT Bridges (8)

• Free height of 7.00m (over 35m width)

• Necessary for large parts or 3 layers of containers

SEINE- SCHELDT Embankments

• Mooring places (250-300m long) • 1-way traffic with communication through RIS/AIS • Waiting zone for large vessels to cross each other

• Ecological embankments • Quay walls

OVERVIEW





SEINE- SCHELDT River restoration

Ecology Landscape Recreation

SEINE- SCHELDT Definition of River Restoration

“All measures to restore or reinforce the structure and processes which contribute to the dynamic balance in the river ecosystem”

•River ecosystem = river bed + meanders + embankments •Dynamic balance: a river is in constant evolution

• Erosion vs. sedimentation • Flooding vs. droughts

HISTORY OF THE LYS

Extensive calibration

SEINE- SCHELDT River restoration (1)

• Reinforcing the dynamics in the ecosystem

Presenter

Presentation Notes

Parallel meanders become shallow zones where water vegetation can grow and fish can spawn Revalorisation of creeks and brooks Creation of wetlands in the winter bed of the river (+ allowing them to flood during winter times by lowering the dikes) Creation of ecological embankments (+ visualising them for the public by altering the road alongside) Connection and excavation of old meanders Creating green links with repect for the historical situation (not like trees along a canal)


• Fish migratory routes around locks


• Recreational routes with respect for heritage • Landscaping

OVERVIEW





SEINE- SCHELDT Harelbeke

SEINE- SCHELDT IN HARELBEKE (1/3)

• Deepening of the Lys • New lock • New weir • Restoration of migratory

routes for fish • Heightening of

Kuurnebrug upstream (*) • New Hoge Brug

downstream • New waiting and mooring

places • Construction of

(ecological) embankments

(*) not part of D&B

Hoge brug

Kuurnebrug


• Dredging + protection against erosion

• Straightening of waterway downstream Hoge Brug

• New urban quay • New industrial quay Geldof

• Realisation of intake at Banmolens

• Renovation of hydraulic turbine Banmolens (*)

• Continuous service road on left bank (+ bridge over intake)

• Road works on right bank

(*) not part of D&B

Site Geldof

Banmolens Banmolens


• Spatial planning (without realisation): • Passage of the Lys at the

new lock & weir • Insertion of Marina

(Kuurne) • Impact assessment on

new urban quarter on left bank

• Overall spatial valorisation of the surroundings (o.o. Bloemmolens)

Bloemmolens

Urban development

HARELBEKE: MAIN PROJECT ZONE

EXISTING INFRASTRUCTURE (1/3)

• Banmolens • Industrial heritage • Reconversion project

• Lofts • Hydraulic turbine • Intake needed!

• Spatial cohesion • Fish migration?


• Bloemmolens • Industrial site until

summer ‘09 • Acquisition by W&Z

to safeguard space for future lock and weir

• Possibility to transform into lofts?


• Lock and weir

NAVIGATIONAL DEMANDS

• Traffic prognosis versus lock capacity (1/2) Traffic prognosis Seine-Scheldt (million tonnes)

0

2

4

6

8

10

12

14

16

1997

1999

2001

2003

2005

2007

2009

2011

2013

2015

2017

2019

2021

2023

2025

traffic in the pastgrowth industrial production +1.37%container and waste traffic + new quay wallsproject induced trafficchange of route


• Traffic prognosis versus lock capacity (2/2)


• Lock geometry based on class Vb


• Mooring structures • Bollards in lock walls • Floating construction

• Continuity of

navigation during construction

WATER MANAGEMENT

• Normal water management: • Upstream

10.18m TAW • Downstream

8.00m TAW • Hydrological data

T (year)

Q (m³/s)

H_up (m TAW)

H_dwn (m TAW)

1 145 10.05 8.94

2 165 10.05 9.12

5 174 10.05 9.28

10 180 10.05 9.40

25 190 10.08 9.56

50 199 10.28 9.69

100 208 10.46 9.84

500 240 10.86 10.20

MHW

Presenter

Presentation Notes

Opwaarts normaal peil NP = 10,18 mTAW maatgevend hoog water peil MHW = 10,86 mTAW maatgevend laag water peil MLW = 10,07 mTAW Afwaarts normaal peil NP = 8,00 mTAW maatgevend hoog water peil MHW = 10,20 mTAW maatgevend laag water peil MLW = 7,88 mTAW

CONCEPTUAL PLANS

• Variant A

CONCEPTUAL PLANS

• Variant C

CONCEPTUAL PLANS

Variant A Variant C

Acquisitions needed Minimal to none Bloemmolens

By-pass weir Not necessary (temporarely) necess.

Techn. feasability To be investigated OK

Continuity navigation During construction OK

Navigability Optimal axis line Broken axis line

Bloemmolens Lofts in the future? Demolition needed

Variant A: best solution, but achievable? Variant C is achievable, but not as good…

FISH MIGRATORY ROUTE

• By-pass new lock and weir • Restoration of river dynamics on meander • Integration of Banmolens / Bloemmolens?

BRIDGES

Heightening Kuurnebrug (*) Rebuilding Hoge Brug

(*) not part of D&B

KUURNEBRUG Palmbout: Opportunity to

improve road situation

HOGE BRUG

SPATIAL VISION (1/3)

SPATIAL VISION (2/3) Masterplan Palmbout

SPATIAL VISION (3/3)

Masterplan Palmbout

PROJECT ZONE DOWNSTREAM

• Straightening the curve • Urban quay widening • Industrial quay Geldof

STRAIGHTENING THE CURVE

Min. 35m Max. 42.75m

Ca. 8m

INDUSTRIAL QUAY GELDOF

• Continuity of Geldofs activities • Straightening the curve implies building

a new quay wall downstream • Acquisition planned nearby

EXPLOITATION & MAINTENANCE REQUIREMENTS

• Life Cycle Management “keep the Whole Life Cycle Cost to a minimum”

• Avoid calamities • Renewable energy sources • Accessibility of the (construction) site

CONCLUSION OF PRELIMINARY STUDY

• The construction of a new lock and weir at Harelbeke is one of the main challenges for the international Seine-Scheldt project

• There are many conflicting goals that need to be reconciled

• An integrated project, by means of a Design & Build procedure is launched, based on two variants

OVERVIEW





DESIGN & BUILD PROCEDURE

Phase 1: 7 candidates • 31/05/2011 – 25/10/2011 • Conceptual plans to be provided

Phase 2: 3 candidates • 20/01/2012 – 19/06/2012 • Detailled design to be provided

Phase 3: 3 candidates • 01/10/2012 – 30/10/2012 • Price to be offered for approved tender from phase 2

D&B AND DURABILITY (1/2)

• Lack of M(aintenance) in procedure • How to obtain durability?

• Reduce maintenance costs • Reduce exploitation costs • Use sustainable forms of energy • Minimize downtime of the structure • Maximize comfort for navigation • Avoid calamities • Take the necessary safety measures • …

D&B AND DURABILITY (2/2)

Criteria for ranking tenders Points

Total cost 40

Technical quality 20

Nautic and hydraulic quality 15

Life span, exploitation and maintenance cost 10

Spatial quality 5

Nuisance control 5

Planning 5

TOTAL 100

CONCLUSION

• Complexity of the project • Close deadline (2016)

D&B procedure

• Lack of maintenance part in procedure Attention to durability Life Cycle Management

Any questions?

More information: www.seineschelde.be

Thank you for your attention!

the seine- scheldt project - cloud object storage · • renovation of hydraulic turbine banmolens...

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