Tunneling - Civil Engineering Questions and Answers

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High pressure grouting is generally restored for concreting in the lining if the rock strata is:

highly fissured

poor

likely to get seepage of water

All of the above.

For hauling muck from the tunnel, the following type of muck-car is used :

muck box

balle-ship

side dump car

U-bottom

All of these.

Which one of the following methods is adopted for permanent drainage of tunnels :

provision of longitudinal drains

continuous open drains

concrete lining

grouting with cement or chemicals

All the above.

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