A series of drained tri-axial tests were carrierd aut on a specimens of a sand prepared at the same porosity and the following results wer obtained at failure All Around Pressure, kPa 50 100 Principal Stress Difference, kPa 180 285 Calculate the value of the angle of shearing resistance What is the value of colesion, Pa The maximum principal stress in kPa for a chamber pressure of 135 kPa

A series of drained tri-axial tests were carrierd aut on a specimens of a sand prepared at the same porosity and the following results wer obtained at failure All Around Pressure, kPa 50 100 Principal Stress Difference, kPa 180 285 Calculate the value of the angle of shearing resistance What is the value of colesion, Pa The maximum principal stress in kPa for a chamber pressure of 135 kPa

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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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.
The undrained cohesion of the soil is(in KPA) (in integer)
Q18 Please provide justified answer asap
# 3) A sand soll sample is subjected to a direct shear test under a normal load of 185 kPa. The specimen failed when the shear stress reached 100 kPa. If the normal load is increased to 240 kPa, what will be the shear strength of the specimen?
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Soil Mechanism
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Two undrained triaxial tests were conducted on soil specimen, and they gave the following results: Sample Confining Pressure Deviator Stress A 350 kN/m² B 500 kN/m² 150 kN/m² 300 kN/m² The shear strength of sample A in the plane of it's normal stress is A 588 kPa B 283 kPa C 730 kPa D 165 kPa Correct Option
a sample of dry sand is tested in direct shear. the shear box holding the same has a circular cross section with a diameter of 50 mm. The normal compressive load imposed is 200N. The sample shears when the shear force is 120N. Compute the Normal stress, Shear test at failure Angle ofninternal friction of this soil.
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In Triaxial test, which of the following parameters do not need to be recorded the confining pressure specimen diameter changes ) the generated pore pressure the axial force A Triaxial test was performed on a dry, cohesionless soil. If the sample failed vhen the minor principal stress was half of the major principal stress, the soil's angle of internal friction is: O 22.5 19.5 33.3 O 25 A technician obtained a soil void ratio of 1.5. It is okay because it is possible to measure void ratio values above 1. True False |
A sample of sand is sheared in the following manner. First an all around normal stresso 350 kPa is applied to the sample. Next a shear stress is applied to the horizontal pia while the normal stress remains constant. The shear stresses at failure are + 186 kPa. Ihe initial stress and stress condition at failure are shown below 350 kPa 350 kPa 186 kPa 350 kPa 350 kPa ー550 kPa 550 kPa 186 kPa 350 kPa 350 kPa Initial Conditions At Failure Determine the Following: fo A) Assuming c, = 0, draw a failure envelope for the soil. Define the friction angle ( the soil. B) Draw the Mohr's Circle at failure for the test. C) Show the location of the pole. D) Define the maximum and minimum principal stresses at failure. E) Define the normal stress corresponding to the maximum shear stress