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Concrete lining is provided concurrently with the driving operation in case of

rock terrain
soft rock
running soil
none of these.

Correct Answer: rock terrain

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More Questions from Tunnelling

Pick up the correct statement from the following during tunnel excavation,
The following tunnels were constructed in different countries for different purposes : 1. Emperor Claudius built the first Roman tunnel 2. The first highway tunnel was constructed in Hungary 3. The first underground railway tunnel was constructed in Great Britain 4. The first navigational tunnel was constructed in France. The correct chronological development of these tunnels is:
Forepoling method is generally adopted for tunnelling in :
The difference of heights of the tunnels above rail tops of BG and MG tracks is kept
Which one of the following methods is generally adopted for tunnelling in firm ground
Which one of the following statements is not correct with regard to heading and hench-ing method of tunnelling.

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