An unconfined compression test was conducted on an undisturbed of clay. The sample has a diameter of 35.7 mm and was 75 mm long. The load at failure measured by the proving ring was 32 N and the axial deformation of the sample at failure was 14 mm the undrained shear strength of clay is kN/m². ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

An unconfined compression test was conducted on an undisturbed of clay. The sample has a diameter of 35.7 mm and was 75 mm long. The load at failure measured by the proving ring was 32 N and the axial deformation of the sample at failure was 14 mm the undrained shear strength of clay is kN/m². ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.18P

See similar textbooks

Related questions

Q: At failure, the major and minor principal stresses on a triaxial test are 200 kPa and 110 kPa…

A: Given data Major principal stress : 200 kpa Minor principal stress :110 kpa Pore water pressure at…

Q: In a direct shear test on a specimen of cohesionless soil (sand), the vertical normal stress on the…

Q: In a tri-axial test of normally consolidated clay, the sample subjected to chamber confining…

A: We know that, when a drained tri axial test is conducted on normally conducted clay , it behave like…

Q: Two drained triaxial tests were performed on a saturated overconsolidated clay and the results are…

Q: A student conducted 2 UU triaxial tests on Kaolin clay samples in the laboratory. Table 1 provides…

Q: Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of…

Q: A specimen is subjected to a tri-axial test. The soil specimen is cohesionless. If the shear stress…

Q: Laboratory results on a soil have shown that its unconfined compressive strength is 1.2 kg/cm2. In a…

A: Given,Uncomfined compressive strength,qu=1.2 kg/cm2Chamber pressure,σ3=0.4 kg/cm2Additional stress,…

Q: Can TRIAXIAL TESTS be performed on sand samples? Briefly explain.

A: Hi! Thank you for the question. As per the honor code, we’ll answer the first question since the…

Q: A consolidated-undrained triaxial compression test was performed on a normal consolidated clay…

Q: Three specimens of clay having a small air-void content were tested in the shear box. Shear loading…

A: Given There are set of Readings which are observed while performing the test. We need to calculate,…

Q: A direct shear test was conducted on dry sand with an area of the specimen = 2 in. x 2 in. The…

A: Calculate the normal stress, σ = Normal force Cross sectional area =502×2 =12.5 lbin2…

Q: An undisturbed soil sample, 110 mm in diameter and 220 mm in height, was tested in a triaxial…

Q: In an unconfined compression test, a sample clay 100 mm and 50 mm in diameter fails under a load of…

A: Given, Length, l = 100 mm Diameter, d = 50 mm Load pressure, P = 150 N Strain, εa=10%=0.1

Q: 3. In a drained tri-axial test, a specimen is confined under pressure and axially load The failure…

A: Triaxial test is suitable for all types of soil like sand , clay. Triaxial test is performed to…

Q: An undisturbed soil sample, 110 mm in diameter and 220 mm in height, was tested in a triaxial…

A: Given:- diameter=110mm height=220mm additional axial load=3.35kN vertical deformation=21mm Failure…

Q: A triaxial shear test was performed on a well-drained sand sample. The normal stress on the failure…

A: Given Data:In a triaxial testNormal stress on failure plane = 6100 psfShear stress on gailure plane…

Q: 4. The uniaxial compressive strength test is done on a cylindrical rock specimen with diameter of 60…

Q: 2- A three-axis compression test has been performed on the clay sample, which has been…

A: Given data Concentrated load, Q = 22.5 KN depth, Z = 15 m Calculate the stress intensity at a depth…

Q: An undisturbed soil sample, 110 mm in diameter and 220 mm in height, was tested in a triaxial…

A: Given: Soil sample having 110 mm in diameter and 220 mm in height. Cell pressure = 300 KN/m2

Q: A soft clay in an unconfined compression test did not develop a failure plane but bulged during the…

Q: Triaxial tests performed on samples of aeolin sand. The failure conditions in terms of effective…

A: Given Data: The failure conditions in terms of effective stress are given as:…

Q: Friction angle of dry sand is 35°. In a direct shear test on this sand, a normal stress of 150kPa…

A: Given data : Normal stress (σn)=150 KPaFriction angle (ϕ)=35∘The given soil is sandy soil .Hence…

Q: A specimen of rock was subjected to a compressive force of (10 kN) which tends an axial deformation…

A: Given data: compressive force = 10 kN axial deformation = 0.01 mm lateral deformation = 0.001 mm…

Q: 20. A cohesionless sand sample was subjected to a triaxial shear test. Failure occurred when the…

A: σ1=σ3tan2(45+ϕ2)+2×C tan(45+ϕ2) Where, σ1= Major principal stress σ3= Minor principal stress ϕ=…

Q: A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two…

Q: Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of…

A: C= 0 for dry sand Use formula for both tests.

Q: A specimen of rock was subjected to a ension force of (10 kN) which tends an axial deformation of (1…

Q: A Effective Normal Stress, ơ' Effective normal stress at point A (psi) = ... (Report to the nearest…

Q: Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of…

Q: 2- A three-axis compression test on a clay sample that is comprehensive and normal up to a stress of…

A: Given triaxial compression test on clay sample is conducted up to stress=300 Kpa Volumetric strain…

Q: A series of consolidated, undrained triaxial tests were carried out on specimens of a saturated clay…

A: As we have to answer only 3 subpart so the first three are answered please ask another question…

Q: triaxial machine. The sample sheared under an additional axial load of 3.35 kN with a vertical…

Concept explainers

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

Question

An unconfined compression test was
conducted on an undisturbed of clay. The
sample has a diameter of 35.7 mm and was
75 mm long. The load at failure measured by
the proving ring was 32 N and the axial
deformation of the sample at failure was 14
mm the undrained shear strength of clay is
kN/m².

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given information

VIEW

Step 2: To find the undrained cohesion

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Test for determination of shear strength

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

In a tri-axial test of normally consolidated clay, the sample subjected to chamber confining pressure of 250 kPa and failed when deviator stress is 350 kPa. Which of the following gives the angle of internal friction? Which of the following gives the shear stress at failure? Which of the following gives the effective normal stress at maximum shear?
A triaxial shear test was performed on a well-drained sand sample. The normal stress on the failure plane and the shear stress on the failure plane, at failure were determined to be 6100 psf and 4600 psf, respectively. a. Determine the angle of internal friction of the sand? b. Determine the angle of the failure plane? c. Determine the maximum principal stress? Please answer this asap. For upvote. Thank you very much
2. A series of consolidated, undrained triaxial tests were carried out on specimens of a saturated clay under no backpressure. The test data at failure are summarized: Confining Pressure (kPa) Deviator Stress (kPa) Pore Water Pressure (kPa) 150 192 80 300 341 154 450 504 222 a. Draw the Mohr circles and find the cohesion and friction angles in terms of effective stresses. b. Compute Skempton’s A-parameter at failure for all three specimens. c. Is the soil normally consolidated or overconsolidated? Why? d. Another specimen of the same clay that was consolidated under a cell pressure of 250 kPa was subjected to a consolidated, drained triaxial test. What would be the deviator stress at failure?
A soft clay in an unconfined compression test did not develop a failure plane but bulged during the test. The sample was 40 mm in diameter and 85 mm in length. The load carried at a strain of 15% was 70.4 N. Determine the shear strength.
A triaxial test performed on a clay sample, under unconsolidated-undrained (UU) conditions, reaches a maximum (failure) axial stress (major principal stress) of 150 kPa when the confining stress (minor principal stress) is 69 kPa. What is the value of cohesion C for this sample? Adjust your answer to ONE decimal place.
Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of dry sand. When the triaxial shear test is performed, the specimen fails when the major and minor principal stresses are 80 and 20 lbs/in^2, respectively. When the direct shear test is performed, what shear strength can be expected if the normal stress is 4000 lbs/ft^2? Show all work.
Assume that both a triaxial shear test and a direct shear test are to be performed on a sample of dry sand. When the triaxial shear test is performed, the specimen fails when the major and minor principal stresses are 80 and 20 lbs/in^2, respectively. When the direct shear test is performed, what shear strength can be expected if the normal stress is 4000 lbs/ft^2?
After conducting a tri-axial test on a sand sample, the normal and shearing stress on the failure plane at failure was found to be 475kPa and 350kPa, respectively. Which of the following most nearly gives the plunger stress?
a）For clays, the failure line (one that connects the peak failure stresses) in the normally consolidated range does not have a cohesion intercept, whereas the failure line in the overconsolidated range has a cohesion intercept. T or F B）During the shearing phase of a CU test, the void ratio of a NC consolidated clay specimen will: 1 decrease. 2 could increase or decrease. 3 remain a constant. 4 increase. C)What does the cohesion (that appears in the Mohr-Coulomb criterion) of OC clays depend on? 1the preconsolidation pressure. 2whether the failure stresses are total or effective. 3the soil type. 4everything listed here.
Two drained triaxial tests were performed on a saturated overconsolidated clay and the results are shown below. Determine the effective and total shear strength parameters. Specimen I: Specimen II: 0²-70 kPa a=160 kPa Od 130 kPa Od-223.5 kPa
Three specimnens of clay having a small air-void content were tested in the shear box. Shear loading was started immediately after the application of the normal load and was completed in 8 minutes. The results are as follows: Normal Stress (kN/m2) Shear stress at failure (kN/m2) O Find the apparent cohesion of the clay. Find the angle of shearing resistance of the clay. What value of c would be obtained from an unconfined compression test on 145 241 337 103 117 131 the same soil?
5. A consolidated, undrained triaxial test is being caried out on a normally consolidated clay where c = 0 and 41= 26'. The triaxial specimen was consolidated under a cell pressure of 300 kPa and backpressure of 80 kPa. Skempton's A parameter at failure is estimated to be 0.80. The drainage valve has since been dosed and the vertical deviator stress increased to failure. What would be the deviator stress and pore water pressure at failure?