The coefficient ka of the active earth pressure, is given by
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Soil Mechanics and Foundation Engineering problems
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1. If Cv is the coefficient of consolidation, t is the time and d is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by
3. A soil mass coated with a thin layer of paraffin weighs 460 g. When immersed, it displaces 299 cc of water. The weight of paraffin is 10 g. If specific gravity of solids is 2.5 and that of paraffin 0.9, the void ratio of soil, is
Correct Answer: flow lines and equipotential lines cross each other at right angles
5. When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known
