Question is ⇒ In "full face" method of constructing tunnels, the first operation relates to, Options are ⇒ (A) removal of bottom portion, (B) excavation of one drift in the center, (C) removal of top portion, (D) excavation being done along the periphery, (E) , Leave your comments or Download question paper.

Question is ⇒ In "full face" method of constructing tunnels, the first operation relates to, Options are ⇒ (A) removal of bottom portion, (B) excavation of one drift in the center, (C) removal of top portion, (D) excavation being done along the periphery, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In "full face" method of constructing tunnels, the first operation relates to
A.	removal of bottom portion [Wrong Answer]
B.	excavation of one drift in the center [Wrong Answer]
C.	removal of top portion [Wrong Answer]
D.	excavation being done along the periphery [Correct Answer]
View Answer 18 -4 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ If 'N' is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are
2N
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2 N + 1
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2 m
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6 m3 per minute per m2 of face area
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liner plate
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propelling jacks
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⇒ Circular section of tunnels is not suitable for
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⇒ Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?
It is suitable for construction in unstable rocks.
In this method, it is easy to install timber support.
Tunnelling can be continuous and the work can be expedited.
In case of excessive water, it is easy to take correct steps.

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Army method
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⇒ In "full face" method of constructing tunnels, the first operation relates to
removal of bottom portion
excavation of one drift in the center
removal of top portion
excavation being done along the periphery

⇒ Which of the following lining material is useful for shield driven tunnels in sub aqueous regions ?
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⇒ In Belgium method of tunnelling
construction of side walls is completed before invert and roof arch are built.
construction of roof arch is completed before side walls and invert are built.
construction of invert is completed before side walls and roof arch are built.
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