A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two"identical" clay specimens. The test results are as follows:Test Number Confining Pressure (kPa)| Deviator Stress at Failure (kPa)10296(i)(ii)1250100Plot the total stress Mohr circles for both specimens at failure (indicate the major and minorprincipal stresses on the plot). Draw the total stress Mohr-Coulomb failure envelop (i.e., the"p=0" envelop).Estimate the undrained shear strength.

Answered: Image /qna-images/answer/a9926f6a-699d-4c83-83f9-f18214a2bebd.jpg

A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two "identical" clay specimens. The test results are as follows: Test Number Confining Pressure (kPa) || Deviator Stress at Failure (kPa) 102 96 1 2 Plot the total stress Mohr circles for both specimens at failure (indicate the major and minor principal stresses on the plot). Draw the total stress Mohr-Coulomb failure envelop (i.e., the "p=0" envelop). (ii) Estimate the undrained shear strength. (i) 50 100

A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two "identical" clay specimens. The test results are as follows: Test Number Confining Pressure (kPa) || Deviator Stress at Failure (kPa) 102 96 1 2 Plot the total stress Mohr circles for both specimens at failure (indicate the major and minor principal stresses on the plot). Draw the total stress Mohr-Coulomb failure envelop (i.e., the "p=0" envelop). (ii) Estimate the undrained shear strength. (i) 50 100

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: A set of three unconsolidated undrained triaxial compression tests were also performed on soil…

A: A set of three unconsolidated undrained triaxial compression tests were also performed on soil…

Q: avg Oavg KSI The bar shown, thickness t= ½", width, D= 3" and a hole of radius, r= 0.675" is under…

A: Given- D=3"r=0.675"σavg=4Ksi

Q: In an unconfined compression test on a saturated clay, the maximum proving ring dial reading…

Q: On a shear plane that has an orientation of 35 degrees, the horizontal stress is 145 kPa…

A: Given, orientation of shear plane =35 degrees horizontal stress=-145 kPa( as compression) vertical…

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

Q: Calculate the pore volume compressibility of a sandstone sample under confining pressure of 5000…

A: Given data: Confining pressure Psig Cumulative pore volume reduction cc 1000 0.122 2000 0.162…

Q: Determine the coordinates (0,T) at the center of the Mohr's circle. Blank 1 *Write you answer in…

Q: A rock core sample with a diameter of 47.6 mm and a length of 11.21 cm is loaded in uniaxial…

Q: An unconfined compression strength. test was conducted on a cohesive soil. The test specimen failed…

A: →Axial Stressσ1=78kPa→Unconfined Compression Strength test i.e σ2=σ3=0 (special case)To determine…

Q: 24.A series of consolidated, undrained triaxial tests were carried out on specimens of urated clay…

A: Given:- Confining pressure(kPa) Deviator stress(kPa) Pore Water Pressure(kPa) 150 192 80 300…

Q: Q.2) In an unconfined compression (UC) test on a saturated clay, the maximum proving ring dial…

A: Given that :-Maximum proving ring dial reading recorded = Initial height = 70 mmInitial diameter =…

Q: (m) Sketch cylindrical specimens and briefly indicate differences in applied stress states between…

A: The difference in applied stress states between CCP (AASTHO T307-99) and variable confining pressure…

Q: A triaxial test performed on a clay sample, under unconsolidated-undrained (UU) conditions, reaches…

A: step 1-

Q: If the results of the series of direct shear tests are plotted on shear stress versus normal stress…

A: Mohrs circle represent normal stress on y axis and shear stress on x axis.

Q: Given the following stresses, find the magnitude and the orientation of the principal stresses from…

A: Data given Find: (a) Magnitude and orientation of principal stress from datum

Q: A clay specimen was tested in undrained direct shear, under a normal stress of 50 kPa. The peak…

Q: n a particular project, the vertical compressive stress at a point of focus in a soil is 100 kPa…

Q: 1. Test A set of 4-in diameter direct shear tests were conducted on a lightly cemented sand. Test…

A: Given: Test Number Forces at failure (lb) Shear stresses at failure (psf) Normal Shearing…

Q: An unconfined compression test is conducted on a 3 in diameter sample 6 inches in length. The peak…

A: Sample diameter, D=3 inLength of sample = 6 inarea of soil sample(A)=Peak load, P=67 lbstrain…

Q: Describe about the Unconsolidated–undrained (U–U) triaxial test data relationship between total…

A: The process of determining the maximum axial compressive stress the specimen can bear at zero…

Q: ANSWER PLEASE THANKS ASAP!

A: (a) Uncorrected uniaxial compressive strength (UCS):Find the correlation factor (qu) for sandstone…

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

A series of unconsolidated undrained (UU) triaxial compression tests have been performed on two
"identical" clay specimens. The test results are as follows:
Test Number Confining Pressure (kPa)| Deviator Stress at Failure (kPa)
102
96
(i)
(ii)
1
2
50
100
Plot the total stress Mohr circles for both specimens at failure (indicate the major and minor
principal stresses on the plot). Draw the total stress Mohr-Coulomb failure envelop (i.e., the
"p=0" envelop).
Estimate the undrained shear strength.

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: Introducing Given Data

VIEW

Step 2: Calculate major & minor principal stresses

VIEW

Step 3: Calculate undrained shear strength (su)

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 17 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

Samples from sandstone were collected from two different depths (80m and 200m) and triaxial shearing tests were performed to estimate the shear strength parameters. From each depth, two different specimens were tests at distinct isotropic confining pressures and from the experiments the deviatoric stress at failure was assessed. The results from these experiments are summarized in Table 1.1. Table 1.1 – Results of triaxial shearing tests at failure for the sandstone samples collected from different depths (Question 1) Specimen No. q (MPa) at failure Collection оз (MPa) depth (m) 1 80 0.600 3.325 2 80 1.800 8.179 3 200 0.600 5.310 4 200 1.800 11.103 (a) Determine the angle of shear strength and cohesion of the sandstone for each of the two different depths using the Mohr-Coulomb (linear) failure criterion based on total stress principle. (b) During the triaxial test measurements, local strain gauges were attached to the specimens for high quality measurements to be performed. It was…
please answer problem 2
Given the following lab data, calculate the pore volume compressibility for a sandstone sample at 4,000 and 6,000 psi. Pore volume of the sandstone sample is 50 cm3. Pressure, psi Vol. fluid expelled, cm3 1000 0.244 2000 0.324 3000 0.392 4000 0.448 5000 0.5 6000 0.546 7000 0.596 8000 0.63
A plate was subjected to a tensile force P=100 KN as shown on the figure. If the allowablestress is 250 MPa, Calculate the following:(a) Minimum required thickness of the plate. (Hint: HOLE vs FILLET) (b) Maximum allowable stress based on minimum thickness of the plate, Let K= 1.20 (c) Percent decrease on stress concentration
a. A shear box test carried out on a soil sample gave the following results ✓ Vertical load [kg] 36.8 73.6 110.4 147.2 Gauge reading for proving 16 26 35 44 (shearing) ring [μm] If the shear box is 60 mm square and the proving ring constant/factor is 20 N/μm, determine the apparent cohesion and angle of internal friction for this soil. HINT: Determine normal stress from vertical load readings and shear stress from proving ring readings