Question

A standard isotropically consolidated drained triaxial compression loading test (CIDC) conducted on a normally consolidated clay...

A standard isotropically consolidated drained triaxial compression loading test (CIDC) conducted on a normally consolidated clay specimen with a preshear consolidation stress s’c = 150 kPa resulted in a measured peak deviator stress (s1-s3)f = 205 kPa.

a. Estimate c’ and f’

b. What would p’f, qf, Ds’1f and Ds’3f be if a standard isotropically consolidated drained triaxial compression unloading test was conducted on the same soil with s’c = 200 kPa?

Symbols: s=sigma, f=phi, D=delta, Ds'=delta sigma prime,

0 0
Add a comment Improve this question Transcribed image text
Answer #1

0 Civen -that 67-6% 61163 ard φ..-Din. :/ 3介+1.50 40 6) 22.s@kese.-bse 6d.+63 σ トloco △6_ C.40.(-3g) :-S0 k.Pa. 2- 02 lo S KPs.

Add a comment
Know the answer?
Add Answer to:
A standard isotropically consolidated drained triaxial compression loading test (CIDC) conducted on a normally consolidated clay...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A consolidated undrained (CU) triaxial compression test (TXC) was conducted on a specimen of saturated clay....

    A consolidated undrained (CU) triaxial compression test (TXC) was conducted on a specimen of saturated clay. The specimen was isotropically consolidated to a total cell pressure, σcell of 400 kPa. The backpressure was u0 = 100 kPa. At failure, the total pore water pressure was u = 90 kPa and the deviator stress was (σ1 − σ3)f = 526 kPa. Determine: a. The principal effective stresses, σ1′ and σ3′, at failure b. The friction angle, φ′ (secant method). c. The...

  • Hg question A consolidated-drained triaxial test was conducted on saturated normally-consolidated clay sample. The effective confining...

    Hg question A consolidated-drained triaxial test was conducted on saturated normally-consolidated clay sample. The effective confining stress was 200 kPa. The specimen failed at a deviatoric stress, (40), of 538 kPa. b. Determine the shear stress on the failure plane at failure. Use c = 0. Paragraph - BIE D Previous page Next page

  • Problem 3: A consolidated-drained triaxial test is carried out on a sand specimen that is subjected...

    Problem 3: A consolidated-drained triaxial test is carried out on a sand specimen that is subjected to 80 kN/m2 confining pressure. The vertical deviator stress was increased slowly such that there is no built-up of pore water pressure within the specimen. The specimen failed when the addition axial stress reached 240 kN/m2. Find the friction angle of the sand. If another identical sand specimen was subjected to 150 kN/m? confining pressure, what would be the deviator stress at failure.

  • Q1c.i A normally consolidated saturated clay specimen is tested in triaxial compression. With the aid of...

    Q1c.i A normally consolidated saturated clay specimen is tested in triaxial compression. With the aid of clear plots describe how the stress-strain behaviour changes when the confining stress (applied by the cell fluid) is increased. (Note: The specimen has been initially brought to equilibrium under isotropic compression).

  • eslblem 2 25 pt)oe Two triaxial compression tests are conducted on identical specimens of the same...

    eslblem 2 25 pt)oe Two triaxial compression tests are conducted on identical specimens of the same saturated clay. In the first test the soil is first consolidated to ?.-350 kPa and u.-200 kPa and then sheared under drained conditions increasing the axial stress while keeping the chamber pressure constant. At failure ?i 560 kPa. In the second test, the specimen is consolidated to ?.-600 kPa and uo-400 kPa, then it is sheared under undrained conditions increasing the axial stress while...

  • PART IV SHEAR STRENGTH OF SOILS 38 pts PROBLEM 4.1 a) A triaxial consolidated drained test...

    PART IV SHEAR STRENGTH OF SOILS 38 pts PROBLEM 4.1 a) A triaxial consolidated drained test is performed on a NC clay with ?.-700 kPa and uo-200. The additional axial stress applied through the piston during the shear phase is 1130 kPa. What is the angle of internal friction of the clay (assume c'-0)? Draw total and effective stress Mohr circles for pre-shear and failure conditions. Indicate position of failure plane b) A duplicate specimen is tested undrained following identical...

  • (b) A saturated specimen of cohesionless sand was tested under drained conditions in a triaxial compression...

    (b) 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 470 kN/m and the plane of failure made an angle of 58° to the horizontal I Determine the magnitudes of the principal stresses. (4 marks) II. Determine the magnitude of the deviator stress and the major principle stress at failure for another identical sample of sand if it is tested under a cell...

  • 8. A sandy soil specimen is subjected to a Consolidated Drained (CD) triaxial test. Confining pressure...

    8. A sandy soil specimen is subjected to a Consolidated Drained (CD) triaxial test. Confining pressure of 500 kPa is applied to the cell and the sample was sheared to failure. The deviatoric stress at failure was recorded as 1400 kPa. Determine the principal stresses at failure and the angle of shearing resistance for this soil. (20 points)

  • Q3) A saturated clay specimen was undergone a consolidated undrained triaxial test with all round...

    Q3) A saturated clay specimen was undergone a consolidated undrained triaxial test with all round applied pressure of 600 kN/m2. If consolidation took place against the back pressure of 200 kN/m2, draw the stress paths and calculate the value of the pore pressure coefficient A at failure. 20 Marks] 279 61-63 (kN/m2) 80 229 158 277 319 433 214 318 388 Q3) A saturated clay specimen was undergone a consolidated undrained triaxial test with all round applied pressure of 600...

  • Test#1 Name CVEN 435 Page 1/8 Initials) 1. A consolidated-drained (CD) triasial test was conducted on...

    Test#1 Name CVEN 435 Page 1/8 Initials) 1. A consolidated-drained (CD) triasial test was conducted on a ơ)-250 kNm, and the deviator clay. The results were as follows: confining stress at failure, (Aoah 250Nm friction.(2) angle 6 that the failure plane makes with the major principal plane, and the normal stress ơ and shear stress t on the failure plane. (Note: see Figure below for of internal (3) definition of failure plane and failure angle, 8. In a drained test,...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT