Course Details

Earth Structures

Academic Year 2023/24

NFA015 course is part of 1 study plan

NPC-SIK Winter Semester 1st year

- Types of earth structures - cuttings, embankments, traffic bodies, dams, landfills.
- Properties of natural, waste, lightweight geomaterials.
- Compaction and stabilization of soils.
- General principles of design of earth structures (ultimate and servisibility limit states).
- Improvement, reinforcement of soils (Preloading, Vacuum consolidation, Vertical drains, Deep dynamic compaction, Vibro compaction, Stone columns, Deep soil mixing, Geosynthetics).

Course Guarantor

Institute

Objective

Aim of this subject is to introduce theoretical and technological issues of earth structures with special emphasis on traffic structures. Theoretical part of the subject introduces basic theoretical principles, design procedures of earth structures (stability, deformation, ground improvement) and their analysis.
Technological part is dedicated to the issues connected with execution of the earth structures. It discusses construction requirements, ground improvement techniques and others.
Students will continuously verify gained knowledge on Seminars by manual calculations as well as by calculations supported by specialized software.

Knowledge

The student acquires the theoretical and practical knowledge of the target setting. The output from theoretical point view is designing of the selected earth structures (earth reinforcement soil, gabions etc.) or improvement of subsoil by stone columns, deep soil mixing or designing of PVD for consolidation. The practical output are main principles for construction these types of structures.

Syllabus

1. Introduction of Earth structures.
2. Mechanical properties and specifics of soil/rock material, secondary materials, light weight fills.
3. Mechanical properties and specifics of soil/rock material, secondary materials, light weight fills (contin.).
4. General principles of designing earth structures – settlements and stability analysis.
5. Ground improvement – Preloading, Vacuum Consolidation, Vertical drains.
6. Ground improvement – Deep Compaction, Vibroflotation.
7. Ground improvement – Deep Soil Mixing.
8. Ground improvement – Stone Columns.
9. Geosynthetics – properties; separation, filtration, drainage and erosion function.
10. Geosynthetics – reinforcement function.
11. Nail structure.
12. Gabions.
13. Monitoring of Earth structures.

Prerequisites

Essentials of material behaviour (theory of Elasticity and Plasticity), classification of soils, Mechanical properties of soils, Effective stress.

Language of instruction

Czech

Credits

4 credits

Semester

winter

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

Lecture

13 weeks, 2 hours/week, elective

Syllabus

1. Introduction of Earth structures. 2. Mechanical properties and specifics of soil/rock material, secondary materials, light weight fills. 3. Mechanical properties and specifics of soil/rock material, secondary materials, light weight fills (contin.). 4. General principles of designing earth structures – settlements and stability analysis. 5. Ground improvement – Preloading, Vacuum Consolidation, Vertical drains. 6. Ground improvement – Deep Compaction, Vibroflotation. 7. Ground improvement – Deep Soil Mixing. 8. Ground improvement – Stone Columns. 9. Geosynthetics – properties; separation, filtration, drainage and erosion function. 10. Geosynthetics – reinforcement function. 11. Nail structure. 12. Gabions. 13. Monitoring of Earth structures.

Exercise

13 weeks, 1 hours/week, compulsory

Syllabus

1. Determination of strength parameters of geomaterials. 2. Determination of stifness and technological parameters of geomaterials. 3. Design of embankment (settlement analysis). 4. Design of embankment with using software (stability analysis). 5. Design of prefabricate vertical drains. 6. Design of mechanically stabilized earth wall. 7. Credits.