a) The following results in Table 2 were obtained for peak failure in a series of consolidation-undrainedtriaxial tests, with pore water pressure measurements, on specimens of saturated clay. Determine thevalues of shear strength parameters c' and op'.Table 2: Results of triaxial tests (kPa).Uw801542220315030045001-03192341504.b) The flow in porous media occurs in 3-D, derive the Laplace equation which is a combination of thecontinuity equation and Darcy's law. (Just derive the partial differential equation).

A triaxial test is conducted in two stages in which the drainage valve may be opened or closed. A…

a) The following results in Table 2 were obtained for peak failure in a series of consolidation-undrained triaxial tests, with pore water pressure measurements, on specimens of saturated clay. Determine the values of shear strength parameters c' and q'. Table 2: Results of triaxial tests (kPa). 03 01-03 Uw 150 192 80 300 341 154 450 504 222 . b) The flow in porous media occurs in 3-D, derive the Laplace equation which is a combination of the continuity equation and Darcy's law. (Just derive the partial differential equation).

a) The following results in Table 2 were obtained for peak failure in a series of consolidation-undrained triaxial tests, with pore water pressure measurements, on specimens of saturated clay. Determine the values of shear strength parameters c' and q'. Table 2: Results of triaxial tests (kPa). 03 01-03 Uw 150 192 80 300 341 154 450 504 222 . b) The flow in porous media occurs in 3-D, derive the Laplace equation which is a combination of the continuity equation and Darcy's law. (Just derive the partial differential equation).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Friction angle of dry sand is 35°. In a direct shear test on this sand, a normal stress of 150kPa was applied. What shear stress will cause the failure? (a) 150kPa (b) 50kPa (c) 78kPa (d) 105kPa
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A 2 m thick clay is singly drained. A structure founded on the surface applied an average stress increase of 50 kPa to this clay layer. A piezometer is installed at the mid-depth of the clay layer. A. What would you expect the initial excess pore pressure reading on the piezometer to be immediately after application of load? B. C. The piezometer recorded a pore pressure of 25 kPa, 1-yr after the application of the stress. What would you expect it to read 2 years later? What is the coefficient of consolidation of this clay in cm²/s?
5. [Shear Strength] ( e). In a series of unconsolidated-undrained triaxial tests on speciments of a fully saturdated clay, the following results were obtained at failure. Minor Principal Stress (КРа) 200 400 600 Major Principal Stress 422 618 820 Calculate the following: a. Cohesion b. Angle of internal friction
answer in ccomplete sol
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4. A sandy soil sample was subjected to a consolidation pressure of 100 kPa and Consolidated drained test was conducted on it. The failure plane angle which the sample made at failure with respect to horizontal was 60°. Find the vertical stress at failure. If instead of increasing the vertical stress, it was decreased gradually, explain why the sample would fail. Obtain the shear and normal stress at failure for both of these conditions.
Subject :Geotechnical Engineering
The results below were obtained at failure in a series of consolidated-untrained triaxial tests, with pore water pressure measurement, on specimens of a fully saturated clay. Determine the values of the shear strength parameters c' and 'If a specimen of the same soil were consolidated under an all-round pressure of 300 kN/m² and the principal stress difference applied with the all-round pressure changed to 400kN/m², what would be the expected value of principal stress difference at failure" 150 300 450 600 03 (kN/m²) 01-03 (kN/m²) u (kN/m²) 103 202 305 410 82 169 252 331
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