the coefficient of consolidation, Cv=0.53 m²/yr, and the clay layer is nderlain by a highly permeable sandstone, how long will it take for 90% onsolidation settlement to occur? [Time factor for 90% consolidation = 0.848]

Q: A certain compressible layer has a thickness of 4 m. After 1 year when the clay is 50% consolidated,…

A:

Q: A normally increased from 25 to 50 kN/m². If on the similar clay the effective stress is increased…

A:

Q: A 5.1 m thick clay soil with a current overburden pressure of 89 kPa is going to experience an…

A: The thickness of the clay layer, H = 5.1m Initial stress, σin= 89kPa Additional stress, ∆σ =89 kPa…

Q: 2. A normally consolidate d clay layer, 3 m thick, has the following properties: Initial void ratio,…

A: To find settlement after 5 year

Q: A normally consolidated clay layer 3.38 m. thick has a void ratio of 1.07. Liquid limit is equal to…

A:

Q: For a certain loading condition, a saturated clay layer under goes 40% consolidation in a period of…

A: Consolidation in saturated clay = 40 % Time period = 178 daysTo find :Additional time required for…

Q: A normally consolidated clay layer of 4 m in thikness has overburden stress of 96.7 kPa and final…

A: step 1-

Q: A normally consolidated clay layer 5.18 m. thick has a void ratio of 1.08. Liquid limit is equal to…

A: Given data in question  Void ratio Depth Liquid limit Average stress Increase in stress To find out…

Q: It is possible in a direct shear test of an overconsolidated clay specimen to obtain the total shear…

A: Direct shear test- It is a test that is done in order to determine the shear strength parameters…

Q: At a building site, a 3-m-thick clay layer is overlain by a stratum of sand and bounded on the…

A: The given data is shown below:

Q: assume a buried stratum of clay 1.83 m thick will be subjected to a stress increase of 33.6 kpa at…

A:

Q: consolidated clay located below ground surface has 3 m thickness and voic Uniform load is acting on…

A: Uniform load acting = 40 kpapre-consolidation pressure= 130 kpacompression index= 0.45swell index =…

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: Under a given load, a clay layer attains 30% degree of consolidation in 100 days. The time taken by…

A: 30% consolidation in = 100 daysTo Find :The time taken by the same layer to attain 60% degree of…

Q: A 12 ft. sandy fill is to be added to the saturated clay site shown below. The moist unit weight of…

A: Before loadingσ'=112.4-62.4×10=500 lb/ft2After loadingσ'=500+115×12=1880 lb/ft2σc'=1000 lb/ft2

Q: For a particular loading condition, a saturated clay layer undergoes 30% consolidation in a period…

A: Given- 30% consolidation in 180 days, U1=30% & t1=180 days, Further 20% consolidation, so,…

Q: The Swelling Index is required in estimating the primary consolidation settlement for normally…

A:

Q: A saturated clay stratum of thickness 10 m, bounded on top and bottom by medium coarse sand layers,…

A:

Q: A sample of San Francisco Bay Mud (a marine silty clay) has an initial void ratio of 1.42, an…

A:

Q: A singly drained clay deposit 10 meters thick has a coefficient of consolidation of 2.0 x 10-4 cm2 /…

A: Given:Single drainedThickness = 10 m = (10*100) cmCoefficient of consolidation= 2*10-4 cm2/sUltimate…

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.