Rock mechanics

Recommended Prerequisites

Engineering Geology (LEC)

Soil Mechanics (LEC)

Stability of Geotechnical Structures (LEC)

Geotechnical Works (MEC).

Teaching Methods

Theoretical-practical classes where, at first, the concepts, principles and fundamental theories related to the behavior rock masses are presented. At a second stage, the students solve exercises from the unit’s practical material, with guidance from the teacher. This solution involves frequently the use of professional software as a learning aid, exposing the students to design tools which they will encounter on their professional practice. 

Learning Outcomes

Present the students to the specific concepts of Rock Mechanics, with particular emphasis on its application to problems of underground works and slopes.

Regarding generic competencies, the unit aims that the students develop analysis and syntheses skills, problem solving competences, work in group, critic thought and use of theoretical concepts on practical situations. Besides these, competences on oral a written communication, use of the internet as communication tool and source of information, in understanding the language of other specialists and self-learning are also pursued.

Work Placement(s)

No

Syllabus

1. Rock: Geological classification and indices.

2. Weathering of the rock: weathering processes (chemical, physical and alteration associated to slopes).

3. Subsurface investigation: surveys; geological mapping (maps and profiles); boreholes; geophysical testing.

4. Discontinuity surfaces: characterization, stereonet presentation; shear strength.

5. Classification systems of rock masses: Rock Mass Rating (RMR); Quality index (Q).

6. Strength and deformability of rock: failure mechanisms; laboratory tests; anisotropy; failure criteria (Mohr-Coulomb and Hoek-Brown).

7. Strength and deformability of rock masses: failure criteria; Geological Strength Index (GSI); deformability moduli.

8. Internal stresses in rock masses: tectonic forces; field tests

9. Applications of Rock Mechanics: underground works; slopes.

Head Lecturer(s)

Paulo Miguel Cunha Matos Lopes Pinto

Assessment Methods

Assessment
Calculation of pratical cases: 40.0%
Exam: 60.0%

Bibliography

[1] Pinto, P.L. (2017) – Apontamentos sobre Mecânica das Rochas, DEC-FCTUC

[2] Hoek, E. (2007) - Practical Rock Engineering.

[3] Vallejo, L. G., Ferrer, M., Ortuño, L. e Oteo, C. (2002) - Ingeniería Geológica, Pearson Educación, Madrid.

[4] Hudson, J. A. e Harrison, J. P. (1997) - Engineering rock mechanics: an introduction to the principles, Oxford: Pergamon.

[5] Goodman, R. E. (1989) - Introduction to Rock Mechanics, 2nd ed., Wiley, New York.