Course Details

Mathematical Modeling of Geotechnical Constructions

Academic Year 2022/23

BF054 course is part of 3 study plans

B-P-C-SI (N) Summer Semester 1st year

B-K-C-SI (N) Summer Semester 1st year

B-P-E-SI (N) Summer Semester 1st year

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

Course Guarantor

doc. Ing. Lumír Miča, Ph.D.

Institute

Institute of Geotechnics

Objective

To obtain theoretical basics of the mathematical modelling of geotechnical problems.
To learn to utilise selected software for design of geotechnics structures.

Knowledge

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.

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.
3. Introduction to the finite element method.
4. Review of soil constitutive models. Linear, non-linear elasticity.
5. Introduction to the plastic behavior of geomaterials.
6. Ideally plastic constitutive models.
7. Elastic – plastic constitutive models with hardening.
8. Undrained versus drained analysis, consolidation analysis.
9. Theory and modeling of earth retaining structures I (gravity walls, cantilever embedded walls).
10. Theory and modeling of earth retaining structures II (propped, anchored walls, reinforced earth walls).
11. Theory and modeling of embankments and cuts.

Prerequisites

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

Language of instruction

Czech

Credits

4 credits

Semester

summer

Forms and criteria of assessment

course-unit credit and examination

Specification of controlled instruction, the form of instruction, and the form of compensation of the absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Offered to foreign students

Not to offer

Course on BUT site

https://www.vut.cz/en/students/courses/detail/255165

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.
3. Introduction to the finite element method.
4. Review of soil constitutive models. Linear, non-linear elasticity.
5. Introduction to the plastic behavior of geomaterials.
6. Ideally plastic constitutive models.
7. Elastic – plastic constitutive models with hardening.
8. Undrained versus drained analysis, consolidation analysis.
9. Theory and modeling of earth retaining structures I (gravity walls, cantilever embedded walls).
10. Theory and modeling of earth retaining structures II (propped, anchored walls, reinforced earth walls).
11. Theory and modeling of embankments and cuts.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

1. Introduction to software Plaxis.
2. Introduction to software Plaxis - continued.
3. Structural and interfaces elements.
4. Numerical analysis of shallow foundation.
5. Numerical analysis of deep foundation.
6. Simulation of laboratory tests.
7. Numerical analysis retaining structure.
8. Numerical analysis retaining structure including ground water flow.
9. Numerical analysis of embankment.
10. Solution of individual example.
11. Presentation of individual example.