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Tunnel Construction Tenders


386 Record Matches Your Request
Showing 1 - 10 Records
Tender Notice Type: Procurement News Country : Australia
Tender Category: Banking, Finance, Insurance and Securities (BFIS) , Infrastructure - Bridges , Infrastructure - Tunnels , Transportation - Railways
Description: Australia : Contract to build $2.8B Sydney Metro tunnel awarded
Action Deadline:   Ref. no.: 40490390
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Tender Notice Type: Procurement News Country : United States
Tender Category: Infrastructure - Bridges , Infrastructure - Tunnels
Description: United States : Port Authority proposes $32B capital plan
Action Deadline:   Ref. no.: 37248935
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Tender Notice Type: Procurement News Country : Australia
Tender Category: Banking, Finance, Insurance and Securities (BFIS) , Infrastructure - Tunnels , Transportation
Description: Australia : APY Lands addressing project provides better access to key services
Action Deadline:   Ref. no.: 31970106
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Tender Notice Type: Contract Awards Country : United Kingdom
Tender Category: Infrastructure - Tunnels , Consultancy , Transportation - Railways
Description: Design and fit-out and commission the railway systems in Crossrail%s tunnel network.
Action Deadline: 30 Apr 2018 Ref. no.: 21913960
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Tender Notice Type: Contract Awards Country : United Kingdom
Tender Category: Telecommunications , Infrastructure - Tunnels , Transportation - Railways
Description: Install a new radio communication system
Action Deadline: 31 Mar 2025 Ref. no.: 21823403
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Tender Notice Type: Project Information Country : Norway
Tender Category: Infrastructure - Roads and Highways , Infrastructure - Tunnels , Consultancy - Engineering
Description: Eiganes Tunnel in Norway
Action Deadline: 31 Dec 2018 Ref. no.: 21769690
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Tender Notice Type: Contract Awards Country : Germany
Tender Category: Infrastructure - Tunnels
Description: Build the Eiganes Tunnel
Action Deadline: 31 Dec 2018 Ref. no.: 21768197
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Tender Notice Type: Contract Awards Country : Singapore
Tender Category: Infrastructure - Tunnels , Services
Description: Provide of Instrumentation and Monitoring for Thomson Line
Action Deadline: 30 Dec 2020 Ref. no.: 21741031
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Tender Notice Type: Contract Awards Country : Singapore
Tender Category: Infrastructure - Tunnels , Services
Description: Provide of Instrumentation and Monitoring for Thomson Line Contracts T216 and T217
Action Deadline: 30 Dec 2020 Ref. no.: 21668408
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Tender Notice Type: Project Information Country : United States
Tender Category: Infrastructure - Tunnels , Consultancy - Engineering , Transportation - Railways , Energy, Power and Electrical
Description: 99E: Railroad Pedestrian Tunnel in Ore City
Action Deadline: 31 Dec 2018 Ref. no.: 21635140
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Tunnels are dug in various types of materials, from soft clay to hard rock, and the method of excavation depends on the ground conditions.

Cut-and-cover is a simple method of construction for shallow tunnels where a trench is excavated and roofed over. A strong overhead support system is required to carry the load of the covering material.

The Seikan Tunnel in Japan is the longest rail tunnel in the world at 53.9 km (33.5 mi), of which 23.3 km (14.5 mi) is under the sea.

The Channel Tunnel between France and the United Kingdom under the English Channel is the second-longest, with a total length of 50 km (31 mi), of which 39 km (24 mi) is under the sea.

The Lötschberg Base Tunnel in Switzerland is the longest land tunnel, with a total of 34.5 km (21.4 mi).
 
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