224-0220/01 – Mechanics of Underground Structures (MPK)
| Gurantor department | Department of Geotechnics and Underground Engineering | Credits | 5 |
| Subject guarantor | doc. RNDr. Eva Hrubešová, Ph.D. | Subject version guarantor | doc. RNDr. Eva Hrubešová, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 1 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2003/2004 | Year of cancellation | |
| Intended for the faculties | FAST | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
The aim is to teach students to synthesize knowledge from different areas of the wider focus (rock and soil mechanics, the theory of elasticity and strength, marking underground structures, structural analysis, concrete and steel structures), design and safe cost-effective underground design, analyze and interpret correctly real behavior of underground structures and compare the results obtained in-situ with the theoretical calculations based on various calculation methods and with the results obtained by mathematical modeling. One of the most important skills is also carried out predicting the behavior of some underground structures in the geological environment and
local conditions.
Teaching methods
Lectures
Tutorials
Project work
Summary
The course deals in detail with the problems of structural assessment and design of underground structures that ensure stability, uptime and security of underground workings. On the basis of evaluation the stress-strain state around the underground working the basic calculation procedure for determining load reinforcement (lining) is defined, additionally deals with classification of computational methods and their usability and devotes considerable attention to static underground structures all types, incl. anchoring rock and rock mass improvement.
Knowledge and skills obtained by students completing the course:
By completing the course students acquire a detailed knowledge of the stability of underground works, their statics and reinforcement methods of design and assessment of structures. They learn to solve basic problems of stability underground works and assessment of structures by a systematic approach to the evaluation of computational methods and the quality of rock mass. Student will be able to use some software and evaluate the reliability of the results.
Compulsory literature:
Recommended literature:
Szechy J.: The Art of Tunelling. Akademia Kiado Budapest
Way of continuous check of knowledge in the course of semester
6 partial tasks, 1 final project
E-learning
There is not the part of teaching.
Other requirements
At least 70% attendance at the exercises. Absence, up to a maximum of 30%, must be excused and the apology must be accepted by the teacher (the teacher decides to recognize the reason for the excuse).
Tasks assigned on the exercises must be hand in within the dates set by the teacher.
Prerequisities
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1. The meaning and content of the discipline, the stress state in the body section.
2. Stress-strain state of the body, math. equations of continuum mechanics, Airy´s function.
3. Rheology of rocks, strength conditions of materials, constitutive models.
4. Stress state around the working.
5. Strain around the unsupported underground workings, method of stabilizing stresses
6. Classification of computation methods for the solution stability and support loading.
7. Static solution of the supports of underground workings.
8. Design of sprayed concrete lining, SB bolts and combinations with other types.
9. Dimensioning of reinforcement according to limit states.
10. Wooden reinforcement construction, steel, concrete and reinforced concrete support.
11. Spatial construction- construction of crosses, branches etc.
12. Critical depth of underground workings and its importance for the design of reinforcement.
13. Reserve - invited lecture by an expert.
Exercise:
1. Practicing basic problems of statics and elasticity - characteristics
sections.
2. Calculation of deformation of statically determinate structures.
3. The three joints arc, internal forces and deformations - 1 task.
4. Strength of rocks.
5. Stress state around the underground workings.
6. Method of stabilizing stress - 2 task.
7. Calculation of loading on support according to the principles of classification methods.
8. Statically indeterminate construction.
9. Static solution of the tunnel lining.
10. Software VYZTUZ.
11. Software MUSCH, TUNKOT - determination of the failure around the working.
12. Final project - 3 task.
13 to 14 Consultation and solving tasks.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction