11. Which one of the following methods of tunnelling does not require the use of time bearing?
12. To attain the required shape of the tunnel section, we use:
13. The most suitable soil for compressed air tunnelling is
14. For full face method, the excavation to be done is generally divided into
15. Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions?
16. "Consider the following situations.
1.Soil is soft.
2.Volume of existing surface traffic on the alignment is heavy.
3.Track is at a deeper level.
4.Water table is high.
In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at
"
1.Soil is soft.
2.Volume of existing surface traffic on the alignment is heavy.
3.Track is at a deeper level.
4.Water table is high.
In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at "