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WorksheetsTunnel in Soft Ground
Total questions: 15
Worksheet time: 8mins
Tunnel is an artificial underground passage, especially one built through a hill or under a building, road, or river that carry the load itself
TRUE
FALSE
What's the name of the machines used to dig the tunnels?
BTMs
TBMs
MBTs
TBM stands for...
tunnel bearing machine
tunnel beating machine
tunnel boring machine
The most important potential loads acting on underground structures are
earth/rock pressure
water pressure
earth/ rock pressure and water pressure
loads due to vehicle traffic
all of them
Tunnel benefits are as follows EXCEPT
minimal disruption to traffic during constructions
preserve important artifacts and scenery
cutting the total time for transportation
reduced the property value
Tunnelling issues includes
stability of tunnel
lining structure
deformations
all of them
Tunnel with stability problem may face tail voids incident, _______, uplift and pressure face problems.
filter bubble
grout deformation
tunnel sinking
blow out
Tunnel is four dimensional problem (ie., arch pressure, face pressure, transverse/longitudinal pressure and (a) )
Design of tunnel lining is not a structural problem, but a ground-structure interaction problem, with the emphasis on the (a)
Tunnel-soil finds equilibrium and reach stability
via allowable movement of tunnel joints
soil redistribution
tunnel distortion (bulge in and out in the same time)
experience compression and tension in same time
all of them
Tunnels only bear compression form earth load
TRUE
FALSE
Top part of tunnel (in circular shape tunnel is called as) ______
invert
crown
springline
wall
In general, there are four phases to complete a tunnel design project
Feasibility study; Comparable study; Design
Feasibility study, Comparable study; Design; M&E & Architectural
Feasibility study; Comparable study & Design; Constructions; Mechanical & Electrical & Architectural
Transverse surface settlement is induced ground movement due to tunnel at
cross section tunnel's excavation
longitudinal tunnel's excavation
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