STAD SHIP TUNNEL - Rakennusteollisuus
Transcript of STAD SHIP TUNNEL - Rakennusteollisuus
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STAD SHIP TUNNEL A New Fairway for Safe, Efficient and Sustainable Transport Terje Andreassen, Project Manager Helsinki,13.October 2016
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Increased Safety and Improved Navigation for Maritime Transport past Stad peninsula
Increased Safety – reduce the risk of accidents at sea
! Improved Efficiency – reduce waiting time, more efficient transport of people and freight
! A shift towards more transport of goods on keel instead of trucks – better for the environment, new regional opportunities
!
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• Main fairway • Voyage in rough weather • Alternative fairway through Stad Ship Tunnel
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The Stad Sea – A Dangerous Voyage?
> Underwater topography > Currents and waves > 45 – 106 stormy days > More extreme weather
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Mission from The Ministry of Transport and Communications A Feasibility Study for Stad Ship Tunnel to be completed by spring 2017
• Feasibility Study • Review regulation plan • New impact assessment • Dimensioning vessels:
– Beam: 21,5 metres – Height: 29,5 metres – Depth: 8 metres
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• Length: 1700 m. • Cross section: 1625 m2. • Volume extraction bedrock: Ca. 3
million m3. Equivalent to ca. 8 million tons of blasted rock.
• Total costs: Ca. 2,3 billion NOK. • Construction time: Ca. 3-4 years.
Scope and Costs
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Amount of construction work
• New roads 5.700 m2 • Soil to be removed 270.000 m3 • Blasting in cuts 550.000 m3 • Blasting in tunnel 2.900.000 m3 • Scaling 115.000 m2 • Anchors 13.300 • Bolts 41.600 • Shotcrete 38.300 m3 • Structures in concrete 33.000 m3 • Structures in steel 70 ton
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Operational Concept
• Capacity: 70-120 vessels per day • 84 % of today’s traffic could pass through • Relevant vessels: passenger ships, cargo ships and motor driven leisure crafts • Systems for safety and warnings - same as for road tunnels • Monitoring
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Traffic Management
• One-way • Queueing system, Exact-time-intervals • Pilot Exemption Certificate or Pilot
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Plan for Navigational Aids
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Reports
• Stated goals • Impact assessment • Regulation plan • Technical feasibility study
with cost estimates • Contract strategy • Data-simulated voyage • Ship model trials • Plan for navigational aids
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Technical Feasibility Study A total and functional description of a probable project/enterprise
• Foundation drilling and seismic studies
• Geotechnical/geological considerations
• Marine structures • Guiding structure • Ventilation and insulation • Electrical installation • Risk assessment • Fire protection • Restructuring of public roads • Depositing tunnel mass
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Data-simulated Voyage Ulvesundet - Vanylvsfjorden
• Coastal Steamer MS Midnatsol
• Container Ship • Three other vessels • Challenges upon entry • Traffic Management • Other issues:
– Wind – Waves – Current – Visibility
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Ship Model Trials Remote Controlled Models in Marintek Harbour Basin Pool
• Scale:1:27,5 • MS Midnatsol • Container Ship
• LAT, Mean Sea Level, HAT • 0, 1, 2 knots current, counter/with
Purpose • Acceptable vessel sizes • Speed calculations • Direction and course stability • Lurch, squat effect • Wave movement
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Portals and Guiding Structure
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Rig area
Filling for c+ 3,0
Parking
Turning-place for buses
Walkway and safety-fence
Terraces and trenching in bedrock
Overbridge structure
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Portal in Moldefjorden
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Portal in Kjødepolden
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TAKK FOR OPPMERKSOMHETEN
www.kystverket.no www.kystverket.no/stadskipstunnel