An undisturbed soil sample was taken from themiddle of a clay layer (i.e., 1.5 m below GL), asshown in figure. The water table was at the topof clay layer. Laboratory test results are as follows:Natural water content of clay: 25%Precdonsilidation pressure of clay : 60 kPaCompression index of clay: 0.50Recompression index of clay: 0.05Specific gravity of clay: 2.70Bulk unit weight of sand: 17 kN/m3A compacted fill of 2.5 m height with unit weightof 20 kN/m3 is placed at the ground level.1 mSandGWT1 mClayHard stratumAssuming unit weight of water as 10 kN/m³, theultimate consolidation settlemnet (expressed inmm) of the clay layer is

Answered: Image /qna-images/answer/ee389a33-af1d-405e-85a3-f0d1fb296750.jpg

Answered: Assuming unit weight of water as 10…

Engineering

Civil Engineering

Assuming unit weight of water as 10 kN/m³, the ultimate consolidation settlemnet (expressed in mm) of the clay layer is

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: coefficient of consolidation of 20 ft2 /yr is given for the singly-drained clay layer. This layer…

Q: A 6 foot thick clay layer is determined to have the consolidation properties shown below. If the…

A: Consolidated settlement is the process by which the volume of soil is decreased by the removal of…

Q: Table 2 shows the soil profile and the relevant soil parameters and the loading parameters.…

A: Introduction : Elastic settlement occurs as a result of a change in shape at a constant volume, such…

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

Q: From the application of given pressure, the anticipated primary consolidation settlement is 0.064…

Q: 2.9 A normally consolidated clay has the following values. Void ratio, e k (cm/sec) 0.2 x 10 0.91 X…

A: void ratio and permeability of a soil medium can be related to each other as follows…

Q: Plot the diagrams of total vertical stress, pore water pressure and effective vertical stress…

A: section1-1 is at point A level section 2-2 is at point B level section Total stress at 1-1…

Q: When a clay's effective stress is increased by 12,000 kg/m, the change in the void ratio is 0.20. If…

A: Given: Change in effective stress '∆σ' =12000kg/m^2 =1.2kg/cm^2 Change in void ratio '∆e' = .2…

Q: A stratum of sand and a stratum of clay have the same thickness of 3 m. The coefficient of 1 of sand…

Q: Calculate the consolidated-undrained friction angle and the drained friction angle.

A: Consolidated undrained test

Q: My soil has the following profile with depth: 0-10 ft gammat = 115 pcf 10-30 ft gammasat =…

A: Determine the total stress, pore pressure and effective stress and plot the it's diagram.

Q: The void ratio of a 4 m thick consolidated clay is 1.3. The compression index and coefficient of…

A: Given: Thickness of layer, Ho = 4 m Void ratio, e = 1.3 Compression index, CC = 0.6 Coefficient of…

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 fully saturated clay specimen is placed in a consolidometer and subjected to a loading of 200…

Q: A consolidated-undrained test on a normally consolidate clay yield the following results: Confining…

A: For normally consolidated clay…

Q: Der silty sand layer and a gravelly sand layer. The A 20 m thick clay layer is sandwiched between a…

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

Q: For a normally consolidated clay layer in the field, the following values are given: Thickness of…

A: Appreciate if there is detailed work with explanation and finds you helpful for ease of…

Q: A soil profile is shown in the figure below. If a foundation load Ao=1000 lb/ft² is applied,…

A: Given: Increase in pressure = 1000lb/ft2 Height of clay layer = 17ft Initial Void Ratio =0.9 Pre…

Q: The void ratio of a 4 m thick consolidated clay is 1.3. The compression index and coefficient of…

A: Given: Thickness of layer, Ho = 4 m Void ratio, e = 1.3 Compression index, CC = 0.6 Coefficient of…

Q: In general, clays tend to have a more pronounced failure: -True -False

A: Solution solution of above question is in second step

Q: 3. A 405 cm³ volume of fully saturated clay weights 8.1 N and the specific gravity of the solids is…

Q: QIB: For normally consolidated clay given: Po-215 kN/m Po+ Ap- 430 kN/m? K-0.3 10 m/sec, Find: 1-…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question 7 During the glacial period, the in situ stress of a clay formation was approximately…

Q: A clay soil specimen with the initial height of 1.0 in is loaded for a design pressure of 20 psi.…

A: The unit weight of sand will be: Y1=GsYw/(1+e) =2.65*62.4/(1+0.65)=100.22 pcf

Concept explainers

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.

Question

An undisturbed soil sample was taken from the
middle of a clay layer (i.e., 1.5 m below GL), as
shown in figure. The water table was at the top
of clay layer. Laboratory test results are as follows:
Natural water content of clay
: 25%
Precdonsilidation pressure of clay : 60 kPa
Compression index of clay
: 0.50
Recompression index of clay
: 0.05
Specific gravity of clay
: 2.70
Bulk unit weight of sand
: 17 kN/m3
A compacted fill of 2.5 m height with unit weight
of 20 kN/m3 is placed at the ground level.
1 m
Sand
GWT
1 m
Clay
Hard stratum
Assuming unit weight of water as 10 kN/m³, the
ultimate consolidation settlemnet (expressed in
mm) of the clay layer is

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

si
Help me answer pls
7.14 For a normally consolidated clay, the following values are given: Void ratio, e k (cm/sec) 0.95 0.2 x 10-6 0.91 x 10-6 1.6 Estimate k at a void ratio of 1.1. Use Eq. (7.38). Ⓒ Cengage Learning 2014
The void ratio of 4 m thick consolidated clay is 1.3. The compression index and coefficient of consolidation of the clay is 0.6 and 1m2/year respectively. It is observed that the increase in vertical pressure is equal to the effective overburden pressure. Determine the change in the thickness of the clay layer (in mm).
Refer to Figure below. Estimate the primary consolidation settlement in the clay layer. Given: Δσ = 150 kN/m2; H1 = 3 m; H2 = 4 m; and H3= 5 m. Soil characteristics are as follows: • Sand: γdry = 15 kN/m3, γsat = 19 kN/m3 • Clay: LL = 65; e = 0.65; γsat = 18 kN/m3; ; Cs =1/6cc σʹc = 200 kN/m2
11.5 Following are the results of a laboratory consolidation test on a sample of undis- turbed clay obtained from the field. Pressure, o' (kg/cm?) Final helght of specimen (cm) 2.540 0.5 2.519 1.0 2.5 2.0 2.428 4.0 2.322 8.0 2.206 16.0 2.09 © Cengage laeming 2014
For a laboratory consolidation test on a clay specimen (drained on both sides), the followingresults were obtained. (7.5)Thickness of the clay layer = 25 mmP1= 100 kN/m2 e1= 0.81P2= 200 kN/m2 e2= 0.73Time for consolidation (t50) = 3.4 minDetermine the hydraulic conductivity of the clay for the loading range
Determine total stress at end of silt layer
At the end of the consolidation of clayey soil, excess pore water pressure is equal to .