GATE MN · 2025 · MN
Question 39: Ground Control
Give it a try, then reveal the answer to check your work.
Question 39
MNMCQ2 marksNeeds review
A ground reaction curve (GRC) of a 3 m radius unlined circular tunnel is shown in the figure. The tunnel is supported by 300 mm thick shotcrete lining. The uniaxial compressive strength (
), modulus of elasticity (
) and Poisson’s ratio (
) of shotcrete material are 20 MPa, 15 GPa and 0.25 respectively. The maximum capacity (
) of the lining and its stiffness (
) are given as
where
= radius of the unlined tunnel and
= thickness of the lining.If the lining is constructed after 5 mm radial deformation, the support reaction is best represented by the line
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2025MN
GATE MN 2025 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Multiple choice (MCQ)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
mining engineering
GATE MN previous year questions
mining
GATE MN previous year questions
mineral processing
GATE MN previous year questions
ground control
GATE MN previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.