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Tunnel Construction Tenders


256 Record Matches Your Request
Showing 1 - 10 Records
Tender Notice Type: Procurement News Country : India
Tender Category: Infrastructure - Tunnels
Description: India : Shri Nitin Gadkari instructs to open one side of Kuthiran Tunnel in Kerala
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Tender Notice Type: Procurement News Country : Malta
Tender Category: Infrastructure - Tunnels
Description: Malta : Statement by the Ministry of Transport, Infrastructure and Capital Projects: € 2.2 Million Investment for Rehabilitation Works on the G?ajn Dwieli Tunnel
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Tender Notice Type: Procurement News Country : Russian Federation
Tender Category: Infrastructure - Tunnels
Description: Russian Federation : The largest BAM modernization facility, the Baikalsky tunnel, opened in Buryatia
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Tender Notice Type: Procurement News Country : Germany
Tender Category: Infrastructure - Tunnels
Description: Germany : Start of the new tunnel for the Hermann-Hesse-Bahn in Ostelsheim
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Tender Notice Type: Procurement News Country : United Kingdom
Tender Category: Infrastructure - Tunnels
Description: United Kingdom : Excavation begins for HS2’s first ‘barn design’ tunnel vent shaft
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Tender Notice Type: Procurement News Country : India
Tender Category: Infrastructure - Tunnels
Description: India : Gadkari: Need to adopt modern concepts of tunneling in India to reduce capital cost, without compromising with safety
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Tender Notice Type: Procurement News Country : Netherlands
Tender Category: Infrastructure - Tunnels
Description: Netherlands : ProRail and Hegeman drive tunnel into Utrecht Locomotiefstraat
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Tender Notice Type: Procurement News Country : Australia
Tender Category: Infrastructure - Tunnels
Description: Australia : Australia's longest tunnel proposed for Great Western Highway upgrade
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Tender Notice Type: Procurement News Country : Poland
Tender Category: Infrastructure - Tunnels , Infrastructure and construction , Infrastructure - Roads and Highways
Description: Poland : We have signed a contract for the documentation of the Cz?uchów bypass
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Tender Notice Type: Procurement News Country : Sweden
Tender Category: Infrastructure - Tunnels , Infrastructure and construction
Description: Sweden : Skanska builds highway section and tunnel in Viš?ové, Slovakia, for EUR 255M, about SEK 2.6 billion
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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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