High pressure grouting is generally restored for concreting in the lining if the rock strata is:
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Civil Engineering · all questionsTunnel Engineering
Tunnel Engineering
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The cut of a tunnel face is shown in given figure. This is called
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The following operations are required for tunnelling in rocky terrain:
1.Removing the foul gases
2.Marking the tunnel profile
3.Setting up and drilling
4.Checking misfire
5.Mucking
The correct sequence is:
1.Removing the foul gases
2.Marking the tunnel profile
3.Setting up and drilling
4.Checking misfire
5.Mucking
The correct sequence is:
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The length of the needle beam used in needle beam method of tunnelling is usually
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Railway tunnels are generally
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The method of draining in the tunnels, is generally known as
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In the wooded bulk-head, used for mucking in steep grade tunnels,
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Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than
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For B.G. single track railway, the height of the tunnel above top of rails should be
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A good blast with a good yield is obtained if the cut hole is
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For initial surveys of tunnels, the following activities are involved:
1.Marking portal point with concrete pillars on the ground
2.Marking tunnel obligatory points on the topographical maps
3.Preliminary setting of the tunnel on the topographical Survey of India maps
4.Driving lines between the fixed obligatory points
The correct sequence of the activities is:
1.Marking portal point with concrete pillars on the ground
2.Marking tunnel obligatory points on the topographical maps
3.Preliminary setting of the tunnel on the topographical Survey of India maps
4.Driving lines between the fixed obligatory points
The correct sequence of the activities is:
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In Belgium method of tunnelling
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The advantages of providing a pair of tunnels as compared to only one large highway tunnel is:
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Which one of the following methods is adopted for permanent drainage of tunnels?
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What is the correct sequence of the following events of construction of a shaft in rock?
1) Drilling and blasting
ii) Timbering
iii) Pumping
iv) Mucking
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1) Drilling and blasting
ii) Timbering
iii) Pumping
iv) Mucking
Select the correct answer
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Which one of the following is a component of a shield for tunneling?
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The correct sequence of drilling equipment for increasing size of holes in tunnels is
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The difference of heights of the tunnels above rail tops of BG and MG tracks is kept
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For hauling muck from the tunnel, the following type of muck-car is used:
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For B.G. single track, the section of the tunnel must have a width
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