A normally consolidated clay layer is 4 m thick (one-way drainage). From the application of a given pressure, the total expected primary consolidation will be 80 mm. (A) What is the average degree of consolidation for the clay layer when the settlement is 30 mm, ( B) If the average value of Cv for the pressure range is 0.003 cm²/sec, how long will it take for 50% settlement to occur ?,(C) How long will it take for 50% consolidate to occur if the clay layer is drained at both top and bottom?

Q: For a laboratory consolidation test on a clay specimen (drained on both sides) the following results…

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Q: A layer of normally consolidated, saturated silty clay of 1 m thickness is subjected to one…

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Q: a (kN/m?) 0.92 150 300 0.77 O Cingage Leaming 20

A: Coefficient of volume compressibility is defined as when a unit pressure is applied on the unit…

Q: Q3: A normally consolidated clay layer is 5 m thick (one-way drainage). From the application of a…

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Q: A singly drained clay deposit 10 meters thick has a coefficient of consolidation of 2.0 x 10-4 cm2 /…

A: Given:Single drainedThickness = 10 m = (10*100) cmCoefficient of consolidation= 2*10-4 cm2/sUltimate…

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.