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Q. Back fill behind the abutments of bridges?
Dry Rubble - At the bank of all bridge abutments and wing walls, the space next to the masonry is to be filled in by a hand-packed dry rubble backing, to the thickness shown on the plans, or as directed by the Engineer.
Filling- Behind this dry rubble, the space upto the back of the excavation is to be filled with moorum, good granular yellow soil or other sound granular materials. Under no circumstances is black cotton or any clayey or silty soil to be used. This filling will be water and rammed in layer thickness. Each layer should have a slope of 45 o towards ground level, the slope to commence from immediately behind the abutment.
Briefly explain the difference between compaction and consolidation of soil. What is the effect of compaction on soil properties? Ans.- Compaction - The process of increas
after formation of the soil under raft some area around the lift pit for example will be on tipping shape and some column placed in the same area the question how we place the col
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Explain the Swell Factor of Soil A soil's swell factor represents the fact that the volume of soil placed by nature in the ground is not the same as the volume of the same mass
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Urban Transport Systems: Urban Transport Problem Rapid urbanisation is taking place in India. The current urban population proportion of 28 per cent may reach 40 per
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