(a) Determine the total and effective principal stresses. (b) Recommend the shear strength parameters to be used for short-term and long- term analyses. The maximum confining pressure (cell pressure) at the depth of interest is 300 kPa.

(a) Determine the total and effective principal stresses. (b) Recommend the shear strength parameters to be used for short-term and long- term analyses. The maximum confining pressure (cell pressure) at the depth of interest is 300 kPa.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter8: Mat Foundations

Section: Chapter Questions

Problem 8.7P

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Concept explainers

Properties of Aluminium

Aluminum (or Aluminum) is a silvery-white in color metal. The chemical symbol of aluminum is Al and it has an atomic number (Z) of 13 in the periodic table. The aluminum name for this metal is derived from the Latin word ‘alumen’, which means bitter salt. Aluminum was discovered in the year 1825 by Hans Oersted, and later Friedrich Wöhler isolated aluminum. It is the most commonly found metal in the earth’s core, which is around 8% of the total core mass. Moreover, it is the third most commonly found element on earth after oxygen and silicon. Electron distribution of aluminum per shell is 2, 8, and 3 with a valency of 3. Atomic weight is nearly 26.9815 u.

Question

5. Please answer parts a and b.

The following result was obtained from a CU test on a clay that is the foundation
material for an embankment.
03 (kPa)
ơ1 (kPa)
Ди (kPа)
300
350
150
(a) Determine the total and effective principal stresses.
(b) Recommend the shear strength parameters to be used for short-term and long-
term analyses. The maximum confining pressure (cell pressure) at the depth of
interest is 300 kPa.
[Note: the clay is normally consolidated, OCR = 1]

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