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Q. Segmentally lined and Sprayed Concrete Linings tunnels?
The fundamental difference between segmentally lined tunnels and SCL tunnels is that the sprayed concrete in SCL tunnel is employed for temporary linings only. Concrete linings in segmentally lined tunnels are designed with long-term load conditions with adoption of appropriate safety factors. Though the dimension of linings in SCL tunnels is derived from a balance between safety of lining and cost consideration.
The quality of precast concrete linings can be better controlled in precasting yards. It is obviously better than that of sprayed concrete which depends on site workmanship.
Define Pneumatic Tools for Underwater Inspection of Bridge? These are more efficient than hand tools and cause less diver fatigue. The disadvantages are that below about 20 m,
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A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum size shovel that will excavate 450,000 bcy of common earth in a minimum of 120 working day
Procedures of graphical interpolation
N-type semiconductor is an example of what semiconductor? Answer : N-type semiconductor is an example of extrinsic semiconductor.
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