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Soils as Multiphase Systems

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Questions and Answers

What is the portion of total stress that is carried by water in saturated soil without seepage?

Portion carried by water in the continuous void spaces (correct)

Portion carried by soil solids at their points of contact

Portion carried by seepage channels within the soil

Portion carried by air voids within the soil mass

What does the effective stress represent in a soil mass?

The sum of vertical components of forces at points of contact in the soil mass (correct)

The sum of all forces acting horizontally in the soil mass

The stress exerted by seepage channels within the soil

The total stress experienced by the soil mass

Which term is used to describe the hydrostatic pressure at a specific point in the soil?

Total stress

Pore water pressure (correct)

Effective stress

Neutral stress

What is the space occupied by water equal to in a soil mass according to the text?

Cross-sectional area occupied by solid-to-solid contacts Signup and view all the answers

Which term is used to refer to the value of neglected pressure in practical problems?

Neutral stress Signup and view all the answers

In a saturated soil with seepage, how does the effective stress at any point differ from the static case?

It increases or fluctuates with seepage flow Signup and view all the answers

What is the purpose of analyzing the distribution of stress along a given cross section of the soil profile?

To determine the compressibility of soils Signup and view all the answers

What is the effective stress concept related to in soil mechanics?

Distribution of stress in a soil mass Signup and view all the answers

Why is it necessary to estimate the net increase of vertical stress in soil during foundation construction?

To calculate settlement that may occur Signup and view all the answers

In a given soil volume, what occupies the void spaces between solid particles?

Both water and air Signup and view all the answers

When analyzing problems like bearing capacity, what fraction of the normal stress in a soil mass is carried by water in the void spaces?

A significant fraction Signup and view all the answers

What factors determine the net stress increase in soil due to foundation construction?

Depth below foundation and load per unit area only Signup and view all the answers