In Belgium method of tunnelling
A. Construction of side walls is completed before invert and roof arch are built
B. Construction of roof arch is completed before side walls and inverts are built
C. Construction of invert is completed before side walls and roof arch are built
D. Construction of invert and side walls is completed before roof arch is built
Answer: Option B
This Question Belongs to Civil Engineering >> Tunnel Engineering
A. (i) and (ii) are correct
B. (iii) and (iv) are correct
C. (i) and (iv) are correct
D. (ii) and (iii) are correct
Which of the following lining material is useful for shield driven tunnels in sub aqueous regions?
A. Stone masonry
B. Timber
C. Cast iron
D. Cement concrete
Which of the following methods of tunneling is used for long tunnels at great depths?
A. Army method
B. Needle beam method
C. Austrian method
D. English method
A. Only up holes
B. Only down holes
C. Horizontal or up holes
D. Horizontal down or up holes
Join The Discussion