Tuesday, 7 August 2012

Career Spot 77: JumboTests Updates: Updated: Question in GATE 2012 Mining Engineering Paper with Solution

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JumboTests Updates: Updated: Question in GATE 2012 Mining Engineering Paper with Solution
Aug 7th 2012, 09:10

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Updated: Question in GATE 2012 Mining Engineering Paper with Solution
Aug 7th 2012, 08:49

A question in GATE 2012 Mining Engineering Paper with Solution has been updated:

A circular tunnel of 1.85 m radius is driven in rock in a hydrostatic stress field of 20 MPa. The tunnel lining is provided before occurrence of any rock deformation. The shear modulus of rock is 2 GPa and the modulus of elasticity of lining material is 3 GPa. Assuming both rock and lining behave elastically, the radial pressure on the rock and lining interface in MPa is

  1. 13.33
  2. 9.91
  3. 8.19
  4. 11.62

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