224-0946/02 – Experimental methods of study of physical behavior of geomaterials (EMSFCG)
| Gurantor department | Department of Geotechnics and Underground Engineering | Credits | 10 |
| Subject guarantor | doc. Ing. Ivan Janeček, CSc. | Subject version guarantor | doc. Ing. Ivan Janeček, CSc. |
| Study level | postgraduate | Requirement | Compulsory |
| Year | | Semester | winter + summer |
| | Study language | English |
| Year of introduction | 2018/2019 | Year of cancellation | |
| Intended for the faculties | FAST | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
The course is focused on presentation of modern techniques of study of physical properties of geomaterials and their behavior in selected model conditions. Emphasis is placed mainly on mechanical properties and deformation response of studied materials in relation to their composition and structure or other physical characteristics. Student will get an overview of used physical methods and experimental techniques. They will acquire theoretical knowledge related to the design and preparation of mechanical tests of materials as well as special triaxial experiments. The graduate will acquire skills in analyzing experimental data from such experiments based on physical models. The acquired theoretical knowledge and analytical skills will be complemented by an appropriate form (actively or passively) within experiments carried out in the laboratories of the Institute of Geonics, AS CR.
Teaching methods
Individual consultations
Summary
Compulsory literature:
Hudson, John A., and John P. Harrison. Engineering rock mechanics: an introduction to the principles. Elsevier, 2000.
True triaxial testing of rocks, (book) Editor M. Kwasniewski, CRC Press/Balkema, Leiden, 2012
P.A. Kelly, Solid mechanics I-IV (e-book) http://homepages.engineering.auckland.ac.nz/~pkel015/SolidMechanicsBooks/index.html
L. Vavro, Lomová houževnatost hornin a její zjišťování pro geomechanické hodnocení hornin a horninového masívu, Disertace, VŠB – TU, FAST, Ostrava 2014
Stuart, B. H., Infrared Spectroscopy: Fundamentals and Applications. John Wiley & Sons, 2004
Handbook of Thermal Analysis, ed. Hatakeyama, T., Zhenhai Liu, John Wiley & Sons, Chichester, 1998.
Recommended literature:
Kim M.M., Ko H.Y. Multistage triaxial testing of rocks. Geotech Test J 1979;2:98–105.
Hoek E. Estimating Mohr–Coulomb friction and cohesion values from the
Hoek–Brown failure criterion. IntJ Rock Mech MinSci1990;27:227–9.
J.B. Walsh, The effect of Cracks on the Compressibility of Rocks, Journal of Geophysical Research 70 (2) (1965) 381–389.
The ISRM Suggested Methods for Rock Characterization, Testing and Monitoring: 2007-2014, editor R.Ullusay
J.B. Walsh, The effect of Cracks on the Uniaxial Elastic Compression of Rocks, Journal of Geophysical Research 70 (2) (1965) 399–411.
J.B. Walsh, The effect of Cracks in Rocks on Poisson’s Ratio, Journal of Geophysical Research 70 (20) (1965) 5249–5257.
B.N.Whittaker, R.N.Singht and G.Sun, Rock fracture Mechanics – Principle , design and applications. Developments in geotechnical Engineering, 71, Elsevier, Amsterdam – London - New Yourk – Tokyo, 1992
Larkin, J. P. Infrared and Raman Spectroscopy – Principles and Spectral interpretation. Elsevier. Croydon, 2011.
Principles and Apllications of Thermal analysis, ed. Gabbott, P., Blackwell Publishing Ltd., Oxford 2008.
Ramachandran, V. S., Paroli, R. M., Beaudoin, J.J. Delgado, A. H. Thermal Analysis of Construstion Materials, Noyes Publication/ William Andrew Publishing, Norwich, 2003.
Way of continuous check of knowledge in the course of semester
E-learning
Other requirements
There are no further requirements for the student
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Study of mechanical properties of geomaterials. Fundamentals of Continuum Physics, Voltage and Deformation Tensor, Invariants of Tensors and Their Role in Model Descriptions of Geomaterials.
2. Special approaches in the description of large deformations
3. Description of elastic behavior of materials, reversible component of deformation, generalized Hook law, hyperelasticity.
4. Irreversible deformations, plasticity, friction roles in materials, pores influence on effective mechanical characteristics, dilatant behavior of materials, breakage, phenomena beyond the limit of breaking, pore pressure.
5. Overview of selected experimental methods and techniques for studying other physical properties, structure and composition of geomaterials (eg porosimetry, water absorption, fluid transport in geomaterials, sound propagation in geomaterials, thermal and spectral methods).
6. Methodology of experiments studying mechanical response of geomaterials I (basic uniaxial and triaxial tests: simple and direct tension test, Brazilian test, isotropic compression, CTC, RTC, RTE, CTE, PS and TTC test, relaxation test and creep test; study of defect propagation - determination of fracture toughness)
7. Methodology of experiments studying the mechanical response of geomaterials II (cyclic loading, load control regimes beyond the limit of the breach, experiments with pore pressure)
8. Strain and strain detection in the experiment (load cell and manometer design, strain gauges - Wheastone bridge, LVDT sensors, extensometer types, 3D deformation analysis, measurement errors)
9. Overview of experimental techniques for mechanical tests (Actuator for uniaxial load, roller of jaws and jaws, triaxial testing - right triaxial cells - solutions and their deficiencies, structural types of classical triaxial chamber with axially symmetrical loading, realization of extension tests).
10. Practical part. Selected experiments on servo-hydraulic equipment with high pressure triaxial chamber for experimental study of mechanical behavior of rocks (Laboratory of the Institute of Geological Sciences, AS CR). Analysis and evaluation of these experiments. Optional visit to other experimental workplaces of the Institute of Geology of the AS CR. Laboratory of Infrared Spectroscopy, Laboratory of Microscopy, Laboratory of Thermal Analysis). Selection of experiments according to the current research plan of the laboratories and the orientation of the doctoral dissertation.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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