Estimate the ultimate consolidation settlement under the centerline of a 25 x 25 meter mat foundation. The mat is 1.5 meter thick reinforced concrete (ϒconcrete = 23.6 kN / m3), and the average stress on the surface of the slab is 125 kPa. The soil profile is shown in the figure below. Lab testing on samples of the clay showed that the clay is normally consolidated and that Cc = 0.40, Cr = 0.03, and eo = 1.13. Neglect any settlements due to the sand layer.

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Q: A consolidated-drained (CD) triaxial test was conducted on a normally consolidated clay. The clay…

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Q: A normally consolidated clay is consolidated under a stress of 03 =125 kPa, then sheared undrained…

A: Given: σ3= 125KPa, △uf = 40 KPa, Deviator stress = 250 Kpa

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A: Given: Confining pressure = 110 kPa Deviator stress = 90 kPa Pore-water pressure = 55 kPa

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Q: Given that B =1 m, L = 3 m, and Q = 110 kN, the soil characteristics given in the figure are Cs =…

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Q: on a normally consolidated clay are given next: Axial Strain, % Aa, kN/m2 Ud, kN/m2 0.5 156 99 0.75…

A: Sigma3=392 kN/m2

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Q: 2) A rectangular (5ft by 8ft) foundation will be built on the soil profile shown in the figure.…

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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.