In a reclamation project, the middle of a clay layer is under an initial effective vertical stress of 200 kPa and initial void ratio (eo) of 0.90. The clay is overconsolidated with OCR of 1.4, compression index of 0.34 and expansion index of 0.07. With an applied load of 299 kPa, what will be the final void ratio (e1) for the clay?

Q: A 3m deep sand layer has a specific gravity of 2.68 and a void ratiodf 0.60. Under this layer is a…

A: Compression index is CC=eo-eflogσ1+Δσσ1soFind inital void ratio of claySeo=woG1eo=0.32.7eo=0.81

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

A:

Q: a (kN/m?) 0.92 150 300 0.77 O Cingage Leaming 20

A: Coefficient of volume compressibility is defined as when a unit pressure is applied on the unit…

Q: A clay layer 2.5 m thick is subjected to a loading of 0.75 kg/cm2. One year afterloading, the…

A: Step 1: Given DataThickness of clay layer (H): 2.5 mLoading (σ): 0.75 kg/cm²Average consolidation…

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

A:

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: 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: At 140 KPA, the soil's effective normal stage has a void ratio of 0.55. The soil's compression index…

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 clay layer with two-way drainage reached 75% consolidationin t years. How long would it take for…

A: To find time required for the soil to consolidate 75%

Q: 1.In an oedometer test a specimen of saturated clay 19 mm thick reaches 50% consolidation in 20 min.…

A:

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

A: Given- 30% consolidation in 180 days, Additional time required for further 20% consolidation.

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.