Geotechnical Engineering - Vol 2 | 6. Preconsolidation Pressure by Abraham | Learn Smarter
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6. Preconsolidation Pressure

6. Preconsolidation Pressure

The chapter provides an overview of preconsolidation pressure, the maximum effective stress experienced by soil throughout its stress history, and classifies soils based on their stress history: normally consolidated, over consolidated, and under consolidated soils. The behavior of these soils under various loading conditions and their implications for structural integrity are emphasized.

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Sections

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  1. 1
    Preconsolidation Pressure

    Preconsolidation pressure is the maximum effective stress that a soil has...

  2. 1.1
    Definition Of Preconsolidation Pressure

    Preconsolidation pressure is the maximum effective stress that a soil has...

  3. 1.2
    Effect Of Stress History

    This section discusses the impact of stress history on soil classification,...

  4. 1.2.1
    Normally Consolidated Soils

    Normally consolidated soils never experience a vertical effective stress...

  5. 1.2.2
    Under Consolidated Soils

    This section discusses preconsolidation pressure and classifies soils based...

  6. 1.2.3
    Over Consolidated Soils

    Over consolidated soils are those that have experienced vertical stress...

What we have learnt

  • Preconsolidation pressure indicates the past maximum effective stress on a soil.
  • Soils can be classified into normally, under, and over consolidated based on their stress history.
  • Under consolidated soils can undergo significant deformation, posing risks to structures.

Key Concepts

-- Preconsolidation Pressure
The maximum effective stress that a soil has experienced in its stress history.
-- Normally Consolidated Soils
Soils that have never experienced a vertical effective stress greater than the current stress.
-- Over Consolidated Soils
Soils that have experienced vertical effective stress greater than the current effective stress.
-- Under Consolidated Soils
Soils that have not consolidated under the current overburden pressure and are prone to larger deformations.

Additional Learning Materials

Supplementary resources to enhance your learning experience.