Course Details

Mathematical Modeling of Geotechnical Constructions

Academic Year 2024/25

NFB014 course is part of 1 study plan

NPC-SIS Winter Semester 2nd year

The course is mainly focused on geotechnical constructions analyses using the finite element method. In the first part of the course, basics of continuum mechanics will be repeated. The major emphasis is placed on a description of soil constitutive models, starting with the simplest elastic models, continuing with more complicated models involving plastic (irreversible) component of strain. In the following part of the course, students will become familiar with the process of creating a mathematical model both from a theoretical and practical point of view. Acquired knowledge will be applied in order to solve various types of geotechnical constructions (shallow foundations, deep foundations, earth retaining structures, embankments, cuts, underground structures) using Plaxis 2D software. In the last part of the course, students will prepare and present their individual projects.

Credits

5 credits

Language of instruction

Czech

Semester

winter

Course Guarantor

Institute

Forms and criteria of assessment

course-unit credit and examination

Entry Knowledge

Soil mechanics, Foundation Engineering, Underground structures, Elasticity and plasticity.

Aims

To obtain theoretical basics of the mathematical modelling of geotechnical problems.
To learn to utilise selected software for design of geotechnics structures.
Main output is acquiring knowledge build-up of mathematical model selected geotechnical problems (slope stability, reinforcement soil, retaining wall and tunnel). It means definition the boundary conditions, selection constitutional models etc. The selected themes are educated on the concrete examples using software on the Department of Geotechnics.

Basic Literature

POTTS, David M., et al. Finite element analysis in geotechnical engineering: theory. London: Thomas Telford, 1999. ISBN 0-7277-2753-2  (en)
POTTS, David M., et al. Finite element analysis in geotechnical engineering: application. London: Thomas Telford, 2001. ISBN 0-72-772783-4 (en)
HERLE, Ivo. Základy matematického modelování v geomechanice. Praha: Karolinum, Učební texty Univerzity Karlovy v Praze, 2003. 802460745X (cs)
DAVIS, Robert Olin; SELVADURAI, Antony PS. Elasticty and geomechanics. Cambridge university press, 1996. 9780521498272 (en)
DAVIS, Robert Olin; SELVADURAI, Antony PS. Plasticity and geomechanics. Cambridge university press, 2005. 9781139436526 (en)
NAKAI, Teruo. Constitutive Modeling of Geomaterials: Principles and Applications. CRC Press, 2012. 978-0415557269 (en)
DESAI, Chandrakant S. Elementary Finite Element Method. Prentice Hall, 1978. 9780132566360 (en)

Offered to foreign students

Not to offer

Course on BUT site

Lecture

13 weeks, 2 hours/week, elective

Syllabus

  • 1. Introduction, basic aspects and reasons of applying numerical methods in geotechnics, examples of practical applications.
  • 2. Continuum mechanics – summarization, review of numerical methods. Review of soil constitutive models.
  • 3. Introduction to the finite element method. Linear, non-linear elasticity.
  • 4. Introduction to the plastic behavior of geomaterials.
  • 5. Perfectly plastic constitutive models.
  • 6. Elastic – plastic constitutive models with hardening.
  • 7. Undrained versus drained analysis, consolidation analysis.
  • 8. Theory and modeling of foundations.
  • 9. Theory and modeling of earth retaining structures, excavations.
  • 10. Theory and modeling of earth constructions. Stability analysis.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

  • 1. Introduction to the used software.
  • 2. Structural and interface elements.
  • 3. Numerical analysis of shallow foundations.
  • 4. Numerical analysis of deep foundations.
  • 5. Simulation of laboratory tests.
  • 6. Numerical analysis of propped retaining structures.
  • 7. Numerical analysis of anchored retaining structures.
  • 8. Numerical analysis of embankments.
  • 9. Solution of an individual task.
  • 10. Presentation of an individual task.