Civil Engineering - Tunnelling - Discussion

Discussion Forum : Tunnelling - Section 1 (Q.No. 7)

Tunnelling

For tunnels exceeding 300 m in length, the grade should be provided below

50% of the ruling gradient

60% of the ruling gradient

75% of the ruling gradient

80% of the ruling gradient.

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

1 comments Page 1 of 1.

AMAN JANGRAL said: 5 years ago

Is change in length of tunnel changes % of ruling gradient.

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