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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.
Concrete Mix Proportions Concrete mix proportions should be chosen in such a way that concrete of adequate workability is obtained. Workability of concrete mix should be such t
explain operations of direct and indirect leveling?
describe the methods of reducing the levels,and their relative advantages and disadvantages.
Keywords related to Modern Trends in Transportation: Exclusive Bus Lane : A lane reserved exclusively for buses. High Capacity Bus System :
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Analyse the state of stress: For the cross-section shown in above figure, let us take b = 100 mm, d = 300 mm and M = 9 × 10 7 N mm and Q = 18 × 10 4 N and analyse the state
A square pile group of 9 piles passes by a recently filled up material of 4.5 m depth. The diameter of the pile is 30 cm and pile spacing is 90 cm centre to centre. If the unconfin
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Radial flow pumps for small flows and high heads In radial flow pumps, a diffuser/volute is generally designed at it outlet to convert the kinetic energy obtained during the pu
collect the field deta manualy and drw the drawing as per scale
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