Calculate how long it will take for consolidation to be almost completed (reach ca. 95% of ultimate consolidation) for layers of Bay mud with thickness of 1, 3, and 10m. Note that this happens when Terzaghi’s time factor reaches 1. Assume that the layers are drained both up and down during consolidation. The equation for the time factor is: inserted image Assumet hat the consolidation coefficient of the Bay mud is 10-8 m2/s.

Q: Q5): For the soil profile shown in figure, the piezometer reading at point (A) at time (t) after…

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Q: after which they had void ratic

A: Using the equation, v = N - λ*lnP' ...........(1) Therefore,we know that  v = 1 + e  Hence, v(1) =…

Q: How long will it take for 50% of the total settlement to occur in laboratory specimen of the clay…

A: Degree of consolidation = U= 50%Cv= 0.25m²/dayDiameter of specimen = 6.35cmH= 2.54cm

Q: The vertical soil profile shown below is loaded with a uniform surcharged pressure of 60 kPa on the…

A: ∆σ = 60 kPa  σc = 80 kPa

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

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Q: In an Oedometer test, the void ratio of a clay decreased from 0.652 to 0.51 under change in…

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Q: The following readings were taken for an increment of vertical stress of 400 psf in a…

A: The value of the t90  can be find out by plotting a graph between settlement and time. ⇒t90 = 5.5…

Q: Find out the time required for 50% consolidation in a soil having thickness of 800 cm and perviou…

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Q: A 15" thick clay layer shown below is consolidated. Calculate the time required to achieve 65% of…

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Q: A clay soil, tested in a consolidometer, showed a decrease in void ratio from 1.20 to 1.10 when the…

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Q: Question attached

A: To determine: Hydraulic conductivity of clay.

Q: 3-lf the time needed for 50% consolidation of a 2-in clay specimen (single drainage) in the…

A: Consolidation ratio: After time t and at depth d the process of consolidation in the consolidating…

Q: Results of a laboratory consolidation test on a 10 meter thick clay indicates t 50 = 12.5 minutes…

A: given data:- thickness of lab sample=3.18 cm time taken by sample to get 50% consolidation=12.5…

Q: 2.10 A soil stratum is 10 m thick with pervious stratum on top and bottom. The time required for 50%…

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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 =…

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

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A: Consolidation is a change in volume of soil mass in the vertical direction that is soil will undergo…

Q: The time required for a 50% consolidation of a 25 mm thick layer (drained at both and bottom) in the…

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Q: A soil stratum is 10 m thick with pervious stratum on top and bottom. The time required for 50%…

A: Given data- Thickness of soil stratum=10 m Coefficient of permeabilityK=10-7 cm/s, Coefficient of…

Q: If the OCR of the clay layer is 2.5 instead, and w = 38%, estimate the primary consolidation…

A: According to given data  Given: Void Ratio (e) = 0.76Water Content (w) = 34%OCR (Cc) = 2.5Vertical…

Q: 4. (a) Time required for a 3m clay layer, sitting on bedrock, and overlain by a sand layer to fully…

A: Time required for consolidation settlement, t = Tv d2/Cv Where, Tv = Non-dimensional time factor d =…

Q: 2.17 A clay specimen 25 mm thick (drained at top only) was tested in the laboratory. For a given…

A: The objective of this problem is to determine the time required for  consolidation of a clay layer…

Q: Question attached

A: Secondary consolidation: The reduction in volume continues at a very slow rate even after the excess…

Q: The rate of consolidation for a stratum of clay soil is affected by several factors. Describe these…

A: Factors Affecting Consolidation: (a) Clay layer thickness (b) Number of drainage path (c)…

Q: the soil if the building life is expected to be 45 years. Report your answer to thre Coefficient of…

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Q: a. Determine the coefficient of consolidation for the load range in cm squared/min. b. Based on the…

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Q: Q5): For the soil profile shown in figure, the piezometer reading at point (A) at time (t) after…

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Q: A soil profile is shown in figure below. A uniformly distributed load, q=200 kPa, is applied at the…

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Q: Q1- In an Odometer test a specimen of saturated clay 26 mm thick reaches 58% consolidation in 31…

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Q: From the application of given pressure, the anticipated primary consolidati 0.064 mm. What is the…

A: Anticipated primary consolidation settlement = 0.064mm Average degree when settlement is 0.02mm

Q: A soil stratum is 10 m thick with pervious stratum on top and bottom. The time required for 50%…

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Q: 3. A 15 ft thick doubly drained layer of saturated clay under a surcharge loading underwent 90%…

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Q: The data in Table 1 shows the results from a consolidation test conducted on a specimen of clay.…

A: Consolidation Test When the soil is confined laterally and loaded axially, a consolidation test is…

Q: vertical stress at the middle of the clay layer will increase by 132 kPa. Ca consolidation…

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Q: The figure below shows the soil profile at a site where you plan to lower the water table. You have…

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Q: Q1- In an Odometer test a specimen of saturated clay 26 mm thick reaches58% consolidation in 31 min.…

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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.