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Construction Planning & Management

 
Industry : Construction
Activity: Question posted: 11 18 2008 12:56:30 +0000, 4 answers, 365 views, last activity 07 06 2010 20:18:08 +0000
 
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Kvaerner cementation india ltd way back in 1998 built a horseshoe type water tunnel  for Krishna Valley Development corporation using boomer drillrigs on 4 faces . The c/s was 30 m arched and unsupported. The length of tunnel was 17 km. Atlas copco is into building of tunneling equipments around the world 



  Answered by     P.P.Boni , McConnell Dowell ( Tunnel & Underground),  | 06 22 2010 05:18:32 +0000
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Dear Anshuman,

Two main way to tunnel are:

TBM Tunnelling: use of tunnel boring machines, open shields, EPB, Slurry, Hard Rock & Mixed shields.

Non TBM Tunnelling: Road Header, Drill and Blast, NATM

 

Method you want to choose depends on , geology, length of the tunnel and time allowed for construction.

 

Regards

 

 

 

  Answered by     Pragya Kothari, Construction-Heavy, DLF  | 04 14 2009 11:17:07 +0000
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Whatever anjali has said is absolutely right and this method integrates the principles of the behaviour of rock masses under load and monitoring the performance of underground construction during construction.

  Answered by     Anjali Bhatia, Construction-Heavy, Sobha Developers  | 11 19 2008 05:09:23 +0000
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Hi anshuman,

In many cases we still use conventional drill and blast method. Only in recent years industry has started New Austrian Tunnelling Method & started using equipments like drifters with auto-feed and hydro booms for tunnel construction.....

 
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