Q1: Find the maximum primary consolidation settlement occurred in the soil profile due to wide spread load equal to (50) kPa, if you know that the clay layer has OCR = 1.2, and L.L =25% and find the time required to reach 35 %3D mm of consolidation settlement. 150 kN/m² NGS . - 0.5 G, - 2.64 2.5 m w.L 1.5 m Clay 1.8m/y 16KN/m"

Q: A recently constructed long Embankment is shown in the figure. It was made from compacted (Rolled)…

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Q: A saturated clay layer 4 m thick is located 6 m below GL. The void ratio of the clay is 1.0. When a…

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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: Q.3. A Clay layer, shown in figure (2) is loaded by a continuous surcharge (fill material of sandy…

A: Given, γfill = 13 kN/m3  Depth of fill = 1 m

Q: Calculate the consolidation settlement in clay layer depending on an increment in stress level of…

A: Calculation will be done for upto mid layer of clayey soil.

Q: A 3-meter clay layer (e = 0.97, Gs = 2.54, Cc = 0.305) is overlain with 2-meter-thick sand layer (e…

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Q: The excessive consolidation rate (OCR) of a water-saturated clayey soil is 3 'and the internal…

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Q: A 3-m-thick layer (two-way drainage) of saturated clay under a surcharge loading underwent 90%…

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Q: If the clay is OC, pre-consolidation pressure, Pc=200 kPa, Cc=0.1, Cr=0.025, e.=0.9, calculate the…

A: step 1-

Q: What is the total settlement of the clay layer five years after the completion of primary…

A: This question is from Geo technical engineering

Q: A saturated clay layer (300cm in thickness) was sitting upon the rock, its unit weight was y= 20…

A: Given values: Saturated clay layer thickness=300cm unit weight of soil=20kN/m3 Cc=0.2 Cr=0.04…

Q: A building is expected to increase the vertical stress at the center of a 2-m-thick clay layer by…

A: We have to calculate the primary consolidation settlement.

Q: 4. A soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water…

A: Given Data:H0=4mδsand,dry=14 kn/m3δsand,sat=18 kn/m3δclay,sat=19 kn/m3Void ratio=0.8Liquid…

Q: Calculate the final voids ratio of a thin clay layer when the vertical stress increases by (Ao = 65…

A: Calculate the initial effective stress,  OCR = σ'cσ'     2 =σ'c50    σ'c=100 kPa Let thickness of…

Q: Refer to Figure P2.18. A total of 60 mm consolidation settlement is expected in the two clay layers…

A: Given:- The total consolidation settlement expected in the two clay layers = 60 mm  To determine:-…

Q: A half-closed clay layer is 8m thick and it can be assumed that the coefficients of consolidation in…

A: Given data coefficients of consolidation in both the vertical and horizontal directions are the same…

Q: For the soil profile, if the clay layer is divided into two layers: Ap = 48kN/m? %3D Y sat = -…

A: Given data in question  void ratio Unit weight Water table at top of G.L. Depth of clay layer. To…

Q: 4. A soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water…

A: Effective stress at middle of clay is given by ; σ1 = 14 *3 + (18 - 9.81) * 3 + (19 - 9.81) * 2 =…

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 strata of normally consolidated clay of 3 m depth is drained at both the ends. The coefficient of…

A: Given, Coefficient of permeability= k = 5×10^(-8) cm/s  Coefficient of volume compressibility = mv =…

Q: A normally consolidated clay layer is 4m thíck and is drained on one sIde only. From the plication…

A: solutionGiven thichness of layer H=4mexpected consolidation Sf=80mmalet the degree of consolidation…

Q: A soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water…

A: Given data- For sand-γd=14  kN/m3γsat=18 kN/m3For clay-γsat=19 kN/m3Void ratio e=0.8Liquid limit…

Q: (c) The maximum past pressure oym' at depths 25 ft and 35 ft are 3000 lb/ft? and 2500 lb/ft?,…

A: The ability of the soil to compress or settle with respect to the increase in effective stress by…

Q: A normally consolidated clay layer is 4 m. (one-way drainage). From the application of a given…

A: (i)

Q: An oil storage tank having a diameter of 30 m is located 3 m below the surface of a deposit of 23 m…

A: Given data oil storage tank=30m Diameter=3m Surface of a deposit clay=23m Pressure=120kN/m2 Average…

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

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Q: A 3-meter clay layer (e = 0.81, Gs = 2.86, Cc = 0.329) is overlain with 3-meter-thick sand layer (e…

A: Ho=3m Cc=0.329

Q: The average effective overburden pressure on a 10-m-thick clay layer in the field is 136 kN/m², and…

A: (a) Given, Pre-consolidation pressure, σc'=350 kNm2 Thus pre-consolidation pressure is greater than…

Q: Calculate the final voids ratio of a thin clay layer when the vertical stress increases by (Ad 65…

A: Step 1

Q: Question-4: An open layer (doubly drained) of clay 4 m thick is subjected to loading that increases…

A: step 1-

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

A: Given   Thickness= 1 m  Pressure increment= 20 Kpa

Q: A Dry sand; e = 0.55 G, = 2.66 3 m B Water table 15 m Sand G, = 2.66 e = 0.48 5 m Clay w = 34.78% G,…

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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 6 m. layer of clay is underlain by a layer of sand 4 m. in thickness. Due to the weight of soil…

A: Given data, Cc = 0.20 eo = 1.2 = initial void ratio of clay Additional stress = 28 kPa  Geostatic…

Q: A 5m thick saturated soil stratum has a compression index of 0.25 and coefficient of permeability…

A: The given data is shown below:

Q: From the given soil profile, a surcharge load of 120 kPa is acting at the top of the ground surface.…

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Q: A 2-meter clay layer (e = 0.88, Gs = 2.67, Cc = 0.305) is overlain with 4-meter-thick sand layer (e…

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Q: A 3-m layer (double drainage) of saturated clay under a surcharge loading underwent 90% primary…

A: Thickness of layer (H) = 3m Time for 90% consolidation (t90) = 75 days

Q: 4. A soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water…

A: Step 1

Q: For a normally consolidated insensitive clay ∅_CD = 30°. Deviator stress at failure of the same soil…

A: Given ∅= 30° Deviator stress = 250kpa Confining pressure ?

Q: A 2-meter clay layer (e = 0.88, Gs = 2.67, Cc = 0.305) is overlain with 4-meter-thick sand layer (e…

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Q: 4. A soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water…

A: when soil reaches to full saturation value after expulsion of pore air and remain saturated during…

Q: ed the following results: overconsolidation ratio (OCR) = 1.5 Compression index = 0.25 Recompression…

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Q: A 3-meter clay layer (e = 0.86, Gs = 2.69, Cc = 0.304) is overlain with 2-meter-thick sand layer (e…

A: clay properties:                     e = 0.86, Gs = 2.69, Cc = 0.304                     depth of…

Q: A 2-meter clay layer (e = 0.83, Gs = 2.66, Cc = 0.343) is overlain with 3-meter-thick sand layer (e…

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Q: An oedometer test is performed on a normally consolidated clay stratum that is 350 cm thick and it…

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Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.