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Which one of the following is not the method of tunneling in hard rock ?1. Full face heading method2. Heading and bench method3. Drift method4. Shaft method

Answer» Correct Answer - Option 4 : Shaft method

Explanation:

Method of tunneling in hard rocks-

  1. Full face method
  2. Heading and bench method
  3. Pilot tunnel method
  4. Perimeter method of tunneling
  5. Drift method

Method of tunneling in running ground-

  1. Forepoling method
  2. Linear plate method
  3. Needle beam method
  4. American method
  5. English method
  6. Austrian method
  7. Belgian method
  8. Flying arch


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