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Q. Vibration in structures - resilient bearings?
When railway tunnels are built close to buildings, ground-borne vibration is transmitted to buildingsthrough compression and shear waves [36]. When structural members (such as wall) of a building have natural frequencies similar to frequency at the source, response of structures would be magnified. This effect is evenmore major when building is designed with small number of movement joints. Therefore vibration can be felt inside the building and noise associated with this vibration is produced. To evade this, vibration isolation can be implemented sometimes by providing resilient bearings at column heads in buildings.
Q. Define water content, void ratio and dry density of a soil. If wet density of a soil is 1.9 gm per cm at a moisture content of 24%, what will be its dry density? Ans. - W
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Project specifications require a relative compaction of 95% (modified Proctor). Construction of a highway embankment requires 10,000-yd 3 of fill. The borrow soil has an in-situ
explain it
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define alternative depths
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