a. How long will it take for 50% settlement to occur? Cv = 0.002 cm2 /sec. b. How long will it take for 50% consolidation to occur if the clay layer is drained at both top and bottom?

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

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Q: A normally consolidated clay in the field has the following properties: Compression index = 0.26…

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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: For a normally consolidated clay, the following were recorded; confining pressure= σ3 = 140KPa and…

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Q: A normally consolidated clay has the following values void ratio e = 1.2, k(cm/sec) = 0.2 x 10^-6…

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

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Q: Question Attached

A: Coefficient of consolidation, Cv=Kmv×γwCv also can be calculated by time factor…

Q: A 4-meter clay layer (e = 0.8, Gs = 2.74, Cc = 0.333) is overlain with 2-meter-thick sand layer (e =…

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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: A 4-meter clay layer (e = 0.89, Gs = 2.69, Cc = 0.349) is overlain with 4-meter-thick sand layer (e…

A: Given data in question  Void ratio of sand and clay Specific gravity of clay and sand Depths Unit…

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 strata of 3.5 m thick fine sand has a void ratio of 0.7 and G of 2.7. For a quick sand condition…

A: Given data : Specific gravity (G)=2.7Void ratio (e)=0.7Thickness (H)=3.5 m

Q: N.C soil overlaying on previous sand layer has a compression index Cc of 0.31, its void ratio at an…

A: compression index, Cc = 0.31 initial void ration , σo = 125 KN/m2 permeability coefficient, k = 4×…

Q: A 4m thick layer normally consolidated clay has average e = 1.3. Its compression index is %3D 0.6…

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Q: soil profile as shown with a silty sand (ѵ = 15 kN/m3; ѵsat = 17 kN/m3) underlain by high-…

A: Consolidation settlement is the method that the volume of soil is decreased by the removal of water…

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 2-meter clay layer (e = 0.8, Gs = 2.85, Cc = 0.304) is overlain with 4-meter-thick sand layer (e =…

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Q: A large area of 2-m high fill is placed on a normally-consolidated homogeneous sedimentary clay for…

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Q: Given that for an over-consolidated clay soil deposit, the pressure under which the deposit has been…

A: Given data : Maximum applied stress in past  (σo¯) =125 KN/m2Present applied overburden pressure…

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

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

A: (i)

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: A uniform collapsible sand stratum, 2.5 m thick, has specific gravity of its sand as 2.65, with a…

A: given- H=2.5 mG=2.65e=0.65

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

A: Given: The thickness of clay layer is 5 m or 500 cm. The primary settlement is 160 mm. The…

Q: clay layer, whose total settlement under a given loading is expectedto be 13cm settles 3 cmat end of…

A: Given- ∆H=13 cm∆h=3cm after 1 month

Q: For a given consolidated clay: Gs= 2.71; LL= 45; In situ average effective overburden pressure = 120…

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Q: Under a given surcharge, a 5mm thick clay layer has a consolidation settlement of 305mm. Assume C_v…

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Q: Use 10 kN/m³ for the unit weight of water. Question 7 A site is underlain by a 6m thick saturated…

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Q: 7.20 A saturated clay stratum draining both at the top and bottom undergoes 50 per cent…

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Q: A buried clay layer 10 ft thick is sandwiched between strata of free-draining granular soil so that…

A: The expression for settlement time is given as, Here, t is the time at which settlement is…

Q: FLOW OF WATER THROUGH STRATIFIED SOIL 1. Horizontal Flow 1 (K,h, +k2h2 +k3h3. K,hn) 2. Vertical Flow…

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Q: 3 m thick soil has coefficient of permeability 3 x10^-7 m/s. A separate test porosity 40% and bulk…

A: Given a 3 m thick soil has coefficient of permeability 3 x107 m/s. It is required to determine the…

Q: Question 01 An undisturbed clay layer is 15 m thick and have a natural moisture content of 45 %. The…

A: given data H=15m w=45% saturated unit weight=17.2KN/m3 G=2.68 liquid limit=65% increased…

Q: A 3 meter clay layer (e = 0.93, Gs = 2.64, Cc = 0.329) is overlain with 4 meter thick sand layer (e…

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Q: Q2-A) A normally consolidated clay layer is 5 m thick (one-way drainage). From the application of a…

A: Given: The thickness of the clay layer is 5 m or 500 cm. The primary settlement is 160 mm. The…

Q: A certain clay layer has thickness of 5 m. After 1 year, when the clay was 50% consolidated, 8 cm of…

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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: In a reclamation project, the middle of a clay layer is under an initial effective vertical stress…

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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: 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: Question 01: An undisturbed clay layer is 15 m thick and have a natural moisture content of 45 %.…

A: Given:- The thickness of the clay layer = 15 m  The natural moisture content = 45% = 0.45 The…

Q: Why might the permeability in fine-grained soil deposits be expected to be greater for horizontal…

A: Permeability is defined as the property of soil that allows a water or any fluid to pass through it.…

Q: A soil formation is composed of 5 m thick clay and 5 m thick sand being the sand above the clay. The…

A: Given data- Soil Formation-

Q: Following are the results of two consolidated-drained triaxial tests on a clay: 03 = 82.8 KN/m²; 01…

A: We will use the formula  1) σ 1 = σ 3 tan ² α F + 2c tan α F  329.2 = 82.8tan²α F +2c tan α f ...(1)…

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…

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.