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199 Record Matches Your Request
Showing 1 - 10 Records
Tender Notice Type: Tender Notice Country : United States
Tender Category: Infrastructure - Roads and Highways , Infrastructure - Tunnels
Description: West cocoa service area 1 a-lane channel improvements
Action Deadline: 02 Mar 2012 Ref. no.: 10533225
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Tender Notice Type: Tender Notice Country : New Zealand
Tender Category: Infrastructure - Tunnels
Description: Extension of the culvert in the Kopuawhakapata Stream in Crawford Road
Action Deadline: 22 Feb 2012 Ref. no.: 10522973
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Tender Notice Type: Tender Notice Country : India
Tender Category: Infrastructure - Bridges , Infrastructure - Tunnels
Description: Construction of High Level Bridge i/c approaches H.P. Culvert across Kharun River on Silouti-Thekwacharbhata-Surpa-Temri Road
Action Deadline: 22 Feb 2012 Ref. no.: 10516807
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Tender Notice Type: Tender Notice Country : India
Tender Category: Infrastructure - Tunnels
Description: Design, build construction of RCC box culvert for crossing the railway track for balancing reservoir at Vadharva, ta. Maliya, dist. Rajkot
Action Deadline: 24 Feb 2012 Ref. no.: 10515841
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Tender Notice Type: Tender Notice Country : United States
Tender Category: Consultancy , Infrastructure - Tunnels
Description: Concrete box culverts at bob sommers field
Action Deadline: 14 Feb 2012 Ref. no.: 10514806
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Tender Notice Type: Tender Notice Country : Philippines
Tender Category: Water and Sanitation , Infrastructure and construction
, Infrastructure - Tunnels
Description: Construction of box culvert and canal lining
Action Deadline: 08 Feb 2012 Ref. no.: 10514438
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Tender Notice Type: Tender Notice Country : Philippines
Tender Category: Water and Sanitation , Infrastructure and construction
, Infrastructure - Tunnels
Description: Construction of box culvert and canal lining phase ii
Action Deadline: 08 Feb 2012 Ref. no.: 10514437
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Tender Notice Type: Tender Notice Country : Poland
Tender Category: Infrastructure - Tunnels
Description: Preparing the site for the plastic tunnel
Action Deadline: 15 Feb 2012 Ref. no.: 10513362
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Tender Notice Type: Tender Notice Country : Turkey
Tender Category: Infrastructure - Tunnels
Description: 1st Part 2012 1st Region in the European Construction of Tunnel
Action Deadline: 08 Mar 2012 Ref. no.: 10494558
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Tender Notice Type: Procurement News Country : Thailand
Tender Category: Banking, Finance, Insurance and Securities (BFIS) , Infrastructure - Tunnels
Description: THAILAND : PATONG TUNNEL PROJECT to begin within 6 months
Action Deadline:   Ref. no.: 10492618
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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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