dr alun thomas, ramboll: fehmarnbelt fixed link tunnel

RAMBØLL ARUP TEC Fehmarnbelt Fixed Link – Tunnel Design Services

Fehmarnbelt Fixed Link Tunnel Alun Thomas Ramboll


CONTENT

1. The Project in general 2. The Tunnel

• Tunnel Layout • Safety Concept • IMT Design • Construction

4. Environmental issues 5. Procurement

2


LOCATION

Øresund Link

Store Baelt Link

Femern Baelt Link


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


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


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

•


Bro eller Tunnel COMPETITION BETWEEN TUNNEL AND BRIDGE


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)


ALTERNATIVE - BORED TUNNEL


THE TUNNEL


11

PREFERRED ALIGNMENT

• Close to existing

infrastructure

• Rail east of the road, same as in the hinterland

• Almost straight alignment


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 !


PORTAL AREA - FEHMARN


PORTAL AREA - LOLLAND


LAGOON AREA


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


IMMERSED TUBE TUNNEL DESIGN


CHOICE OF CROSS SECTIONS

?


TUNNEL ELEMENTS

Standard element

Special element


SOIL CONDITIONS

20


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.


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


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


CONSTRUCTION


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


THE FOUR CIVIL WORK CONTRACTS

IMT North (TUN)

IMT South (TUS)

Tunnel Portals & Ramps (TPR)

Dredging & Reclamation (TDR )


CONSTRUCTION PRINCIPLE FOR STANDARD ELEMENTS

Production of tunnel elements for Øresund

- Controlled environment

- Straight elements


PRODUCTION SITE - PERSPECTIVE

28


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


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


CONSTRUCTION SITE - FEHMARN


DREDGING


ON-GOING ACTIVITIES


PROJECT TIMESCHEDULE


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

2011/01/05 GO-HOME MEETING

THANK YOU FOR YOUR ATTENTION

dr alun thomas, ramboll: fehmarnbelt fixed link tunnel

Technology

tunnel eller tunnel

tunnel standard elements

fehmarnbelt fixed link

bill eur conceptual

railway line lbeckputtgarden

environmental improvements

preferred solution

feasibility study