dr alun thomas, ramboll: fehmarnbelt fixed link tunnel
DESCRIPTION
Dr Alun Thomas, Head of Tunnels, Ramboll delivered this presentation at the 2013 Australian Tunnelling conference. The two day conference is supported by the Australasian Tunnelling Society and brings together tunnelling leaders, engineers and industry experts to share best practice in tunnelling design, construction, safety and maintenance. The 2012 program focussed on updates from Australasia’s current and future projects, plus case studies from leading International projects - sharing best practice and lessons learnt from the forefront of the latest tunnelling projects. For more information about the event, please visit the conference website: http://www.informa.com.au/tunnellingconferenceTRANSCRIPT
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
Fehmarnbelt Fixed Link Tunnel Alun Thomas Ramboll
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CONTENT
1. The Project in general 2. The Tunnel
• Tunnel Layout • Safety Concept • IMT Design • Construction
4. Environmental issues 5. Procurement
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
LOCATION
Øresund Link
Store Baelt Link
Femern Baelt Link
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
FEHMARNBELT FIXED LINK
Treaty between Denmark and Sweden 1991
Trans European Network priority
Treaty between Denmark and Germany 2008
Multiple solutions investigated, including:
Immersed tunnel Bored tunnel Cable stayed bridge Suspension bridge
Immersed tunnel solution adopted 2011
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
OVERALL PROGRAMME February 2011: Minister of Transport selects IMT as preferred solution
for the German Plan Approval procedure
2013: Publication of the environmental impact statement and EIS-hearing in Denmark.
2013: Application for the plan approval procedure in Germany. Expected to start in September
End 2012: Prequalification of contractors
Mid 2013: Start of Tender process
End 2014: Anticipated presentation of the Danish construction law
2015 – 2021: Construction phase for the coast-to-coast segment
End 2021: Prospective opening of the Fehmarnbelt Fixed Link
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
ADDITIONAL LANDWORKS • Railway line Ringsted-Rødby to be electrified
• Railway line Rødby–Vordingborg to be expanded to
doubletrack excluding the Storstrøm bridge
• Upgrading and environmental improvements for the
motorway Sakskøbing – Rødby to be investigated
• Germany shall ensure a sufficient capacity on the
railway line from Bad Schwartau to Puttgarden
• The railway line Lübeck-Puttgarden shall be electrified
• The German landworks shall include a double track
connection (excluding the Fehmarnsundbrücke)
• Heiligenhafen-Puttgarden road expanded to four lanes
•
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
Bro eller Tunnel COMPETITION BETWEEN TUNNEL AND BRIDGE
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
MAIN ALTERNATIVES
Cable Stayed Bridge : Immersed Tunnel:
Cable Stayed Bridge : Immersed Tunnel: Feasibility Study : 4,4 bill EUR Feasibility Study : 5,5 bill EUR Conceptual Design : 5,1 bill EUR Conceptual Design : 5,0 bill EUR (COWI /Obemeyer) (Ramboll /Arup/TEC)
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
ALTERNATIVE - BORED TUNNEL
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
THE TUNNEL
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
11
PREFERRED ALIGNMENT
• Close to existing
infrastructure
• Rail east of the road, same as in the hinterland
• Almost straight alignment
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
Tunnel Length and Depth
0 5 10 15 20
Marmaray Crossing
Tama River Tunnel
Cross Harbour Tunnel
Hampton Roads Tunnel
Busan-Geoje Fixed Link
Øresund Tunnel
Trans Bay Tube BART Tunnel
Fehmarnbelt Fixed Link Tunnel Length 18.1 km
Immersed Tunnel Length 17.6 km
Tunnel Depth 40 m
WORLD IMT RECORD !
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
PORTAL AREA - FEHMARN
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
PORTAL AREA - LOLLAND
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
LAGOON AREA
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
ENVIRONMENTAL ISSUES
• Sea water
• Seabed and coasts
• Watercourses and lakes
• Ground water
• Animal life in the sea
• Marine flora
• Barriers to water flow
• Sediment spill
16 www.femernenvironment.com
• Landscape and soil
• Vegetation on land
• Animal life on land
• Birds
• Barriers for animals and plants
• Drainage
• Contamination and vibrations
• Social impact
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
IMMERSED TUBE TUNNEL DESIGN
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CHOICE OF CROSS SECTIONS
?
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
TUNNEL ELEMENTS
Standard element
Special element
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
SOIL CONDITIONS
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
Standard element
• 79 Standard elements divided into 9 segments of approx. 24 m, weight 76.600 tons
• Niche at centre of the element for ventilation or traffic information signs
• Same layout for all standard elements e.g. box-outs, cast-in items, cable ducts, etc.
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
SPECIAL ELEMENT
• Need for transformers and other M & E equipment in the tunnel
• Standard elements do not have sufficient space.
• Special elements to cluster mechanical and electrical equipment
• Maintenance staff better working conditions and higher safety
• Installations and system divided into units
• Concentrate extra space in the tunnel at special elements
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
TUNNEL SPECIAL ELEMENT
• Size [l/b/h]: 39m/45m/ 13m
• 10 Special elements
• Lay by for parking of maintenance staff
• Access to all rooms and tubes above
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CONSTRUCTION
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CONTRACT PRINCIPLES
• Four Civil Works Contracts:
• Tunnel North
• Tunnel South
• Portal Structures and Ramps
• Dredging and Reclamation
• Design and Build Contracts
• Competitive Dialogue Procedure
• Other contracts will follow later
• Electrical and Mechanical Works
• Railway
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
THE FOUR CIVIL WORK CONTRACTS
IMT North (TUN)
IMT South (TUS)
Tunnel Portals & Ramps (TPR)
Dredging & Reclamation (TDR )
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CONSTRUCTION PRINCIPLE FOR STANDARD ELEMENTS
Production of tunnel elements for Øresund
- Controlled environment
- Straight elements
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
PRODUCTION SITE - PERSPECTIVE
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
BASIC DATA Approximate
numbers
Length of standard tunnel element 217 m
Height of standard tunnel element 8,9 m
Weight of standard tunnel element 76,000 tonnes
Number of tunnel elements 79 pcs
Structural Concrete (total) 2,6 million m3
Reinforcement (total) 300.000 tonnes
Tie-down anchors (total) 1400 pcs
Total dredged volume in trench 15,5 million m3
Trench backfill volumes 7 million m3
Reclaimed areas 3 million m2
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
QUANTITIES FOR STANDARD ELEMENTS
Content slide, with fact box
Concrete 24,000 m³ Reinforcement 3,200 tonnes Water 4,400 m³ Cement 8,000 tonnes Sand 16,800 tonnes Gravel 28,800 tonnes
(1 day = 24 hours)
Delivery of concrete
16 trucks every hour
Or
Delivery of materials
1 coaster every day
Required materials per week
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
CONSTRUCTION SITE - FEHMARN
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
DREDGING
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
ON-GOING ACTIVITIES
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
PROJECT TIMESCHEDULE
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RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services
PROCUREMENT PROCESS
• Prequalification – already completed
• Tendering with a Competitive dialogue:
1. the provisional bids in which the prequalified contractors describe how they will solve the tasks in technical terms, but without pricing information (submitted in January 2014).
2. the dialogue phase will then last until the end of June 2014.
3. in September 2014 the contractors must submit binding bids with prices specified.
35/15
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2011/01/05 GO-HOME MEETING
THANK YOU FOR YOUR ATTENTION