The settlement analysis for a proposed structure indicates that 6 cm of settlement will occur in 4 years and the ultimate, total settlement will be about 25 cm. The analysis is based on the assumption that the compressible layer is drained at both its top and bottom surfaces. However, it is suspected that there may not be drainage at the bottom surface. For the case of single drainage, estimate (a) the ultimate total settlement and (b) the time required for 6 cm of settlement.

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

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Q: 9. 8.5m compacted fill is to be placed over the soil profile. Cosnolidation tests are done on…

A: Hfill = 8.5m  = 20.3 kN/m3

Q: a. How long will it take for 50% settlement to occur? Cv = 0.002 cm2 /sec. b. How long will it…

A: Given: consolidated clay layer = 3m = 300cm settlement  =  80 mm Cv = 0.002 cm2

Q: Time required for settlement of clay layer for double drainage system if time factor and…

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Q: 3.3 The following test results were obtained on a clayey soil that has been proposed for a landfill…

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Q: A 10 m thick clay layer with single drainage settles 10 cm. in 5 year. The coefficient of…

A: Given: Single drainage Settlement S=10cm in t=5 years. Coefficient of…

Q: The permeability of sand in horizontal and vertical directions are 3 × 10- X X 3 cm/sec and 1 × 10-3…

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Q: Two identically clay samples of the same size designated as A and B are subjected to consolidation…

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A: Given  effective diameter D10=0.05mmvoid ratio e= 0.51constant (C)=0.5 sq.cm To Find  The capillary…

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.