GATE MN · 2023 · MN
Question 37: Ground Control
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Question 37
MNMCQ2 marksNeeds review
A tunnel of diameter 8 m is to be driven in a rock mass having quality index, Q of 1.0. Assume the excavation support ratio (ESR) of the tunnel is 1.0. The support requirement of the tunnel wall using fibre reinforced shotcrete (based on the chart prepared by Grimstad and Barton, 1993) is
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2023MN
GATE MN 2023 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Multiple choice (MCQ)
- Marks
- 2 marks
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