A sand sample in a triaxial test have the following stresses:Cell Pressure25kpa34kpaAxial Stress33kpa55kpaPore Water pressure12kpa10kpaa. Compute the drained angle of internal friction.b. Determine the cohesion of the soilc. Find the angle of failure in shear

The stresses on sand sample in a triaxial test are given as Cell pressure Axial stress Pore…

Answered: A sand sample in a triaxial test have…

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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Consolidation test is conducted to QI determine the consolidation properties of the soil. Table 1. Test Result The dial gauge reading after each load increment (24 hours) is given in the table. Initial sample thickness, Ho = 20 mm, Initial void ratio, e, = 0.9. Determine the following: Construct the compressibility curve and predict the past maximum stress/pressure (preconsolidation stress/pressure) (kPa) Dial gauge reading after 24 Vertical stress (kPa) hours (mm) 22.50 %3D 40 22.41 80 22.15 160 21.51 320 20.25 640 18.45
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

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A sand sample in a triaxial test have the following stresses: Cell Pressure 25kpa 34kpa Axial Stress 33kpa 55kpa Pore Water pressure 12kpa 10kpa a. Compute the drained angle of internal friction. Determine the cohesion of the soil c. Find the angle of failure in shear b.