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Tunnel Construction Tenders


112 Record Matches Your Request
Showing 1 - 10 Records
Tender Notice Type: Procurement News Country :
Tender Category: Infrastructure - Tunnels , Transportation - Railways
Description: Sweden,United Kingdom : Atkins secures Varberg tunnel contract
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Tender Notice Type: Procurement News Country : India
Tender Category: Infrastructure - Tunnels , Infrastructure - Roads and Highways
Description: India : Concession Agreement signed for construction of Z-Morh tunnel in J&K
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Tender Notice Type: Procurement News Country : Bosnia And Herzegovina
Tender Category: Infrastructure - Tunnels
Description: Bosnia and Herzegovina : Autoceste FBiH announces tender for main design of Mostar South - Tunnel Kvanj section of European transport Corridor Vc
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Tender Notice Type: Procurement News Country : Spain
Tender Category: Infrastructure - Tunnels
Description: Spain : Adif performs tunnel improvement works on the Andújar-Arjonilla route in the province of Jaen
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Tender Notice Type: Procurement News Country : India
Tender Category: Infrastructure - Tunnels , Transportation - Railways
Description: India : HCC-VCCL JV secures Rs. 489 cr underground tunneling contract of Delhi Metro Phase IV
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Tender Notice Type: Procurement News Country : Australia
Tender Category: Infrastructure - Tunnels
Description: Australia : Summer Transport Construction Blitz Begins
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Tender Notice Type: Procurement News Country : Spain
Tender Category: Infrastructure - Tunnels , Transportation - Railways
Description: Spain : Adif tenders the projects of integral renovation of the Padrún and Villabona tunnels, in Asturias
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Tender Notice Type: Procurement News Country : United Kingdom
Tender Category: Energy, Power and Electrical , Infrastructure - Tunnels
Description: United Kingdom : Delivering Hinkley Point C’s critical cooling system: Balfour Beatty features in New Civil Engineer
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Tender Notice Type: Procurement News Country : Bosnia And Herzegovina
Tender Category: Infrastructure - Tunnels
Description: Bosnia and Herzegovina : Works Commence on one of the Most Challenging Sections of Corridor Vc: The 2017 Connectivity Project Zenica Tunnel
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Tender Notice Type: Procurement News Country : Bosnia And Herzegovina
Tender Category: Infrastructure - Tunnels
Description: Bosnia and Herzegovina : Works Commence on one of the Most Challenging Sections of Corridor Vc: The 2017 Connectivity Project Zenica Tunnel
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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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