Theoretical Soil Mechanics

Theoretical background for the calculation methods used in geotechnical engineering. Relevant stress fields based on the theory of plasticity, basic elements and combinations. Principles for performing short-hand calculations of settlements, slope stability, earth pressure and bearing capacity of foundations and piles. The course aims at creating understanding through classical analysing tools and hand calculations and through demonstrations of real design cases.

Knowledge

The candidate should have knowledge of:

• The basics of stress-fields in soil bodies, based on the theory of plasticity
• How to derive design formulas for classical geotechnical problems like earth pressure and bearing capacity thus creating an understanding of the basis for the formulas in use
• Analyzing slope stability and calculating the factor of safety as well as the average stress situation along the critical shear surface
• How to use Stability Charts for quick introductory estimates of the stability of a slope and the average stress levels to concentrate on
• Estimating settlements based on the oedometric (constraint) stiffness modulus.

Skills

The candidate is able to:

• Use design formulas, with confidence, being aware of the basic assumptions inherent.
• Handle geotechnical problems like settlement, bearing capacity, earth pressure, slope stability, static capacity and driveability of piles.

General competence

The candidate can:

• Make estimates enabling her to frame the problems at hand and to see them in a greater engineering perspective
• Communicate with other engineering professions in a design process facilitated through a simple platform describing complex geotechnical conditions.

Lectures, calculation and laboratory exercises.