Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 17, Problem 17.11P
To determine
Find the undrained shear strength of the clay.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Vane Shear Testing
12.12 Following are the results of consolidated-undrained triaxial tests on undisturbed
soils retrieved from a 4-m-thick saturated clay layer in the field (ysat = 19 kN/m³).
a. Estimate graphically the Mohr–Coulomb shear strength parameters c' and ø'.
b. Estimate the shear strength in the middle of the clay layer.
Chamber
Deviator stress,
pressure, o3
(kN/m?)
(Ar),
(kN/m?)
Pore pressure at
failure, (Aud,
(kN/m?)
Test no.
1
100
170
-15
200
260
-40
3
300
360
-80
© Cengage Learning 2014
Mcq
Chapter 17 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Knowledge Booster
Similar questions
- A1arrow_forwardFollowing data are given for a direct shear test conducted on dry silty sand:Specimen dimensions: diameter = 71 mm; height = 25 mmNormal stress: 150 kN/m2Shear force at failure: 276 Narrow_forwardA saturated specimen of cohesionless sand was tested under drained conditions in a triaxial compression test apparatus and the sample failed at a deviator stress of 482 kN/m2 and the plane of failure made an angle of 60° with the horizontal. Find the magnitude of the principal minor stress in kPa at failure for identical specimen of sand if it is tested under a cell pressure of 200 kPa. a.600 b.241 c.723 d.200arrow_forward
- A saturated specimen of cohesionless sand was tested under drained conditions in a triaxial compression test apparatus and the sample failed at a deviator stress of 482 kN/m2 and the plane of failure made an angle of 60° with the horizontal. Find the magnitude of the principal minor stress in kPa. include diagramarrow_forwardIn a drained triaxial compression test conducted on dry sand, failure occurred when the deviator stress was 238kN/m² at a confining pressure of 69kN/m². What is the effective angle of shearing resistance and the inclination of failure plane to major principal plane?arrow_forwardIn a site consisting entirely of clays, an electric friction conepenetrometer measures the cone resistance qc at a depth of8.0 m as 0.75 MN/m2. The water table is at 3.0 m below theground level. The unit weights of the clay above and belowthe water table are 16.5 kN/m3 and 19.0 kN/m3, respectively.Estimate the undrained shear strength, preconsolidationpressure, and overconsolidation ratio at this depth.arrow_forward
- A saturated specimen of cohesionless sand was tested under drained conditions in a triaxial compression test apparatus and the sample failed at a deviator stress of 482 kN/m2 and the plane of failure made an angle of 60° with the horizontal. Find the magnitude of the principal major stress in kPa.arrow_forward3.25 In a site consisting entirely of clays, an electric friction cone penetrometer measures the cone resistance q, at a depth of 8.0 m as 0.75 MN/m2. The water table is at 3.0 m below the ground level. The unit weights of the clay above and below the water table are 16.5 kN/m3 and 19.0 kN/m2, respectively. Estimate the undrained shear strength, preconsolidation pressure, and overconsolidation ratio at this depth.arrow_forward7.9 A specimen of soil was collected from a depth of 12 m in a deposit of clay. The ground water table coincides with the ground surface. For the soil, LL= 68, PL = 29, and Ysat = 17.8 kN/m'. Estimate the undrained shear strength S of this clay for the following cases. (a) If the clay is normally consolidated. (b) If the preconsolidation pressure is 191kN/m².arrow_forward
- The following test results at failure conditions are obtained from consolidated undrained triaxial tests on samples from a saturated clay strata. u 03 (pore water (kg/cm²) (kg/cm?) pressure kg/cm? ) Specimen 1 Specimen 2 Determine shear strength parameters. 2.75 1.50 1.50 4.25 2.20 2.0arrow_forwardA sample of dry sand was subjected to axial test with a confining tri - pressure of 250 kN/m². The angle of internal friction is found to be 36°. The sample is likely to fail at a deviator stress of kN/m².arrow_forwardA 42mm-diameter intact rock specimen fails in a uniaxial compression test at an axial load of 20 kN. The rock behaves according to the Mohr-Coulomb criterion, with an angle of friction 38 degrees found in the triaxial tests. A specimen of diameter 42mm would fail in a triaxial test with the confining pressure of 10MPa. The values of ??and m in the Hoek-Brown criterion that would give the same failure loads as the Mohr-Coulomb criterion, for the uniaxial and triaxial tests referred to above is respectively ?? 75.14MPa and m 7.76. Calculate by how many percent the Hoek-Brown criterion with ??and m as determined in (c) overestimates or underestimates the axial load at failure compared to Mohr-Coulomb criterion, when the confining pressure is 10MPa and when it is 20MPa.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Geotechnical Engineering (MindTap C...Civil EngineeringISBN:9781305970939Author:Braja M. Das, Khaled SobhanPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap...Civil EngineeringISBN:9781305635180Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781305081550Author:Braja M. DasPublisher:Cengage Learning
Principles of Geotechnical Engineering (MindTap C...
Civil Engineering
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap...
Civil Engineering
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781305081550
Author:Braja M. Das
Publisher:Cengage Learning