GATE MN · 2022 · MN
Question 49: Geomechanics
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Question 49
MNNAT2 marksNeeds review
A circular tunnel of radius 3 m is constructed in a hydrostatic stress field of 15 MPa. The modulus of elasticity and Poisson’s ratio of the rock are 5 GPa and 0.25, respectively. A uniform support pressure
is applied at tunnel boundary to restrict the radial deformation at the tunnel boundary to 4 mm. The value of
in MPa is ______. (round off to two decimal places)Log in to check the answer
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2022MN
GATE MN 2022 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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