Soil Compaction in Geotechnical Engineering Quiz
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Questions and Answers

What is compaction in the context of geotechnical engineering?

  • Densification of soils by removal of air through the application of mechanical energy (correct)
  • Adding air to soils to increase permeability
  • Increasing compressibility of soils
  • Loosening soils to decrease strength

Which of the following is NOT a reason why soils at a given site may be less than desirable for the intended purpose?

  • Low compressibility (correct)
  • Weak strength
  • High permeability
  • Highly compressible

What is often the most economical alternative for improving the properties of soil at a given site?

  • Using highly compressible soil
  • Relocating the project
  • Stabilizing or improving the properties of the soil (correct)
  • Articulating design for structure members

In which scenario is compaction particularly important as an engineering process?

<p>When soil is used as an engineering material, such as in earth dams (A)</p> Signup and view all the answers

How is the degree of compaction measured?

<p>In terms of its dry unit weight (C)</p> Signup and view all the answers

Compaction is the densification of soils by removal of air through the application of mechanical energy. The degree of compaction is measured in terms of its dry unit ______

<p>weight</p> Signup and view all the answers

SOIL COMPACTION 🖸 Compaction is also very important when soil is used as an engineering material, that is the structure itself is made of ______. Ex. ▪ Earth dams ▪ Highways ▪ Airfields ▪ etc.

<p>soil</p> Signup and view all the answers

In Geotechnical engineering practice, the soils at a given site are often less than desirable for the intended purpose. They may be: ❑ Weak (strength) ❑ Highly ______ ❑ Have a high permeability

<p>compressible</p> Signup and view all the answers

The third alternative may be in most cases the most economical alternative. There are different techniques for improvement of soils (This subject is covered in details in CE 486 “Improvement of Geotechnical Materials”). We will consider in this course only ______.

<p>compaction</p> Signup and view all the answers

SOIL COMPACTION 🖸 In Geotechnical engineering practice, the soils at a given site are often less than desirable for the intended purpose. They may be: ❑ Weak (strength) ❑ Highly ______ ❑ Have a high permeability

<p>compressible</p> Signup and view all the answers

Flashcards

Soil Compaction

Densification of soil by removing air using mechanical energy.

Degree of Compaction

Measured by dry unit weight of the soil.

Soil Improvement

Making soil properties better for a specific use.

Compaction Importance (Engineering)

Necessary when using soil as an engineering material (e.g., dams).

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Inadequate Soil (Site)

Weak soil, high compressibility, high permeability.

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Compressibility

Soil's tendency to change volume under stress.

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Compaction Technique

Method of improving undesirable soil characteristics.

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Earth Dams

Structures built using compacted soil as the primary material.

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Soil Stability

Soil's ability to resist deformation or failure under applied stress.

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Soil Permeability

Soil's ability to transmit water or fluids.

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Study Notes

Soil Compaction

  • Compaction is the densification of soils by removal of air through the application of mechanical energy.

Importance of Compaction

  • Compaction is particularly important when soil is used as an engineering material, such as in the construction of earth dams, highways, airfields, etc.

Undesirable Soil Properties

  • Soils at a given site may be less than desirable for the intended purpose due to being:
    • Weak (strength)
    • Highly compressible
    • Having a high permeability

Improving Soil Properties

  • The most economical alternative for improving soil properties is often compaction.
  • There are different techniques for soil improvement, but only compaction will be considered in this course.

Measuring Compaction

  • The degree of compaction is measured in terms of its dry unit weight.

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Description

Test your knowledge of soil compaction in geotechnical engineering with this quiz. Explore the challenges of weak, compressible, and permeable soils, and discover solutions such as relocation, structural design, and soil stabilization.

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